Comments by "" (@neutronalchemist3241) on "Italy's Worst Machine Gun: The Breda Modello 30" video.
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Sorry, but those are only modern day guessings. The ones above were the opinions of the ones that had to DAILY use those guns in combat.
It's not the first time that real world observations contrast to popular harmchair beliefs. IE it's often repeated that the bottom opening of the Manlicher magazine design was a problem, cause it allowed dirt into the mechanism. In real world that had never been a problem, and contrast with what Vladimir Grigoryevich Fyodorov (the designer of the Fedorov Avtomat) observed in the Russo-Japanese war. He then observed that, in those extreme conditions, the Moisins quickly became single shot weapons, cause the magazine was stuck with mud and ice, while the passing of the en-block clips kept the action of the Steyr rifles tidy.
Other than how much dust and dirt can get into the action, an even more important thing is how much dust and dirt is needed to lock the action. An action with very tight tolerancies needs very few dirt to be stuck. A "wobbling" action (even more a wobbling action with an heavy bolt and firing pin, so with a lot of momentum) is not stuck that easy, and is largely self cleaning.
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@hannibalkills1214 if... if... If the enemy was not armed with firearms, an MG wouldn't have been needed at all. "Reality doesn't work like that". The German army's reality was that they had to adapt to the situation like everyone else, and a tool that limits your ability to adapt is a liability.
The BAR was suboptimal because it's firepower was very limited in respect to it's weight (among some other problem) due to the fact of not having a quick exchange barrel. All in all, with all it's limitations, the Breda 30 was a better LMG. Simply the US had the industrial capability to "throw more BAR to the problem". Also the ability to "call for Arty" made so that MG tactics had always been neglected by the US Army (still today). IE, in a British squad, every grunt was instructed in how to use the BREN and, had only one remained alive, he was supposed to use the BREN. In a US Army squad, only the BAR gunner and his assistant were trained in using it.
The GPMG concept (and the centrality given to the MG tactics by the Germans in WWII), did born because the WWI peace conditions limited the number of both LMGs and HMGs for Germany (and practically banned mortars and artillery). To have an MG that could cover (even with some limitations) both roles, in a certain sense, doubled the allowed nuber.
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Today it can seem strange, but, in the first half of XX century, to design a detachable magazine that was at the same time so cheap to be discarded on the field, and so well and consistently built to not cause feeding problems was really an issue. The BAR and the BREN were plagued by jammings caused by defective magazines, and those had been built by countries that had not raw materials shortages. The British actually designed a fixed magazine for the BREN, loaded with two 15 rounds clips (they didn't adopt that, but it was really awkward compared to the Breda one).
So, in 1924, FIAT came out with a LMG design (FIAT 1924) that had a fixed magazine on the left of the weapon, loaded inserting a 20 round clip (similar to that of the subsequent Breda) from the right. In exchange of a little time lost in recharging, all the feeding problems were avoided.
The flaw was that, to load a MG inserting a clip from one side, the gunner, or the servent, had to expose himself a little, and, laterally pushing the weapon, they can move it, loosing the line of sight.
So the Breda had the subsequent evolution. By tilting the magazine, in exchange of a little more time lost in recharging, the gunner could load the gun (and change the barrel, for that matter) without changing position at all.
In the end, ten years later, at the start of WWII, it was an already outdated design, but it was actually not that bad. There is a tendency, on the net, when a weapon had some defect, tho extremize them, concluding that "it's the worst gun ever made!", "I would have rather fought naked than carrying that piece of junk!" and things like that. But those are modern days shenanigans. The contemporaries of the weapon, those that had to fight them daily, and reuse the captured ones, thought it was not that bad.
From Tactical and Technical Trends (the magazine of the US Intelligence) No. 7, Sept. 10, 1942 "Use of Captured Italian weapons" :
"Breda Light Machine Gun: The Breda light machine gun is similar to the British Bren gun. It is mechanically superior to the Bren gun under dusty conditions. It requires only one man to service it as compared to several for the Bren gun. It has a slightly higher rate of fire than the British weapon. Its disadvantages are that it has no carrying handle, cannot be fired on fixed lines, and has no tripod mounting".
Mind that, to use 4 spare barrels (the number the Italians deemed to be necessary after having used the gun in combat), you have to fire at least 800 rounds in quick succession. So much for the gun not being capable to really provide automatic fire.
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the Revelli 1914 was, all in all, a good HMG. The 1935 conversion not so much (it fired from a closed bolt, that's indifferent for a water-cooled MG, but not so good on a air-cooled one) despite having at least a good feature, an ultra-modern disgregating metallic belt, but it was intended as a cheap stopgap. The ones that had been converted, had not been in exchange to other models, but simply to have more MGs on the field.
The 7.35 carcano cartridge was developed to completely replace the 6.5 one but, as the war broke out when the conversion just started, the plans were cancelled and the 7.35 cartridge simply had not been used on the field.
Austrian captured weapons had been used almost exclusively in AOI (Africa Orientale Italiana, Italian Eastern Africa, that means Ethiopia, Eritrea and Italian Somaliland). Due to the geography, those lands would have been completely cut off from the mainland in case of war with the British Empire (like they infact did), and the local troops would have had to use only what they already had there up to exhaustion, so logistic was less of a issue.
The easiness of servicing was among the things Allied reports of the time praised about the Breda 30.
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Pure short recoil systems (like those used in handguns) and long bottleneck cartridges don't match well.
In a short recoil system, in the moment the barrel stops, the case, in respect to the chamber, abruptly passes from "0" to the max speed. Long rifle cases have a lot of surface that's stuck to the chamber's walls, so, even if the pressure isn't high, with this abrupt acceleration there are high chances to damage the cases, sometimes break them, and so jam the action.
To avoid this, there are several possibilities. To unlock the bolt from the barrel first than the rearward motion of the barrel ends, so allowing the residual pressure of the gasses to start extracting the case first than the barrel stops ("chiusura labile", like in the Fiat Revelli 1914). To use a lever action to ensure that the bolt recoils slightly faster than the barrel ( Browning M1919, Brixia 1920, Breda SAFAT...). To reduce the locking surface of the case (fluting the chamber). Or to reduce the friction between the case and the chamber (lubing the case).
However this is not the only example. The Japanes Type 96 LMG had an oiler, and the Hispano Suiza Hs 404 cannon, and it's derivates in use up until today, has an internal oiler as well.
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@jimbob1427 150 Rounds in a minute is what you could fire with the BAR, first to have to stop and take cover for five minutes, waiting for your weapon to cool off while the other guys fought.
BREN gunners were expected to fire a magazine a minute (30 rounds theoretical, 27 real). At the start of the war it was contemplated a "rapid" fire, to use in emergency situations, of 7 magazines a minute. During the war, due to the practical experience on the field, it was REDUCED to 4 magazines a minute (120 theoretical rounds, 108 real), and keeping in mind that the entire provision of the LMG squad was of 20 magazines, so only 5 minutes of fire at that pace.
That's why, in Allied reports on the Breda 30, and instruction given to the Allied soldiers that were ISSUED with the captured ones, the rate of fire and the reload time HAD NEVER BEEN DEEMED AS PROBLEMS.
RL is quite different form movies.
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"probably after advancing..."
That had something to do with the fact that BOTH the Breda 30 and the BAR were used by 3 men crews?
"Oh, and don't forget..."
Really the Allied used them, The Brits even stamped an English manual for the British gunners equipped with the Breda 30. That's what the Tactical and Tecnical Trend (the magazine of the US Intelligence) No. 7, Sept. 10, 1942 "Use of Captured Italian Weapons" said of it :
"The Breda light machine gun is similar to the British Bren gun. It is mechanically superior to the Bren gun under dusty conditions. It requires only one man to service it as compared to several for the Bren gun. It has a slightly higher rate of fire than the British weapon. Its disadvantages are that it has no carrying handle, cannot be fired on fixed lines, and has no tripod mounting."
That was what the contemporaries, the ones that had to DAILY fight the weapon and use the captured ones, tought of it. Not the armchair opinion of someone that saw it once on a video. No hints of the oiler or the dust cover, or the loading procedure, to be problems at all.
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@firepower7017 Actually the reliability of the BAR was really not good for various reasons that were partly fixed only after WWII.
After WWII Italy simply changed service cartridge and BARs were cheap (actually they were free). They had been replaced with the MG42/59 and the BM59 as soon as the Italian Army had the money to do it.
As for the attitude, no WWII report i know of criticised the feeding system of the Breda 30. It's barely mentioned at all (at that time there was more variety of designs, so it was normal for different weapons to work differently). And for good reasons. The British doctrine of employ of the Bren was to fire one magazine a minute. In exceptional circumstances was allowed a 4 magazine a minute ROF (keeping in mind that the entire squad had 20 magazines and one spare barrel, that, at that ROF, had to be changed after 10 magazines, so, for that BAR, the battle would have been over after 5 minutes of fire). For that practical ROF, the feeding system didn't make any difference.
Ian here criticised the rattling barrel and the front sight on the barrel shroud, that's really "I know that this weapon is bad, so I have to invent something to say it's bad". NONE ever noticed the rattling barrel and the front sight on the barrel shroud being a problem in almost 70 years of use of the MG42/MG3. Today any LMG/squad MG has an optic fixed on the receiver. Do those optics compensate for the barrel change?
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@plasticbeetle6209 The trouble with the M249 belt, as described in a Marine report, is that, when it jams (that, with any automatic belt fed weapon is not a question of "if", nor of "when", but of "how often"), the gunner opens the action to clear the jam, and the belt falls into the box. At that point the gunner, other than clearing the jam, has to decide if open the box and search for the end of the belt to use the rest of it, or discard the box and use another one of his limited supply.
While he performs all those actions, he's not supporting the squad and he's defenseless.
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@BanCorporateOwnedHouses So who wrote the Tactical and Technical Trends, No. 7, Sept. 10, 1942, was Italian too? That's a really peculiar opinion.
The BAR was not a light machinegun, and had been forced to cover that role. It had not a quick exchange barrel, the very light barrel rapidly overheated, it was difficult to strip and service, but if not completely serviced on a daily basis, it rapidly became inoperable. It was so "satisfactory" that, had not the world ended, the US would have replaced it with the WAR (Winchester Automatic Rifle) despite the logistic nightmare that would have meant.
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@BanCorporateOwnedHouses As said, the US could simply trow more rifles at the problem, and yet, there were multiple occasions were the rifelmen were left without automatic fire cover because the BAR was cooling down.
If you needed three BAR to do the work of a single Breda 30, then the BAR is not "sure as hell better than this", it is an inferior design, but the soldiers were lucky enought to be born in a country that could manufacture much more of them.
Actually the US Intelligence praised the Breda 30. The "tactical and tecnical trend" (the magazine of the US intelligence) compared it favourably to the BREN, for performances in dusty conditions and because it was more apt to be manned by a single man. To me it was, all in all, a less than satisfactory weapon, but all the bashing is the product of internet era, when opinions tend to be repeated time after time, every time radicalising them further.
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A WWII BAR B-Team was composed of a gunner, an assistant gunner and an ammo bearer, for a rifle that, other than having reliability and mainteinance issues, easily overheated (and at that point the gunner only had to wait for it to cool down and NOT provide support fire, since the rifle had not a quick exchange barrel), and was not really apt for firing in prone position, nor for firing from the shoulder. The thing it was really designed to do, firing from the hips, was practically forgotten with the end of WWI.
The Breda 30 was originally issued with two spare barrels. After some months of war it was noted that they were often insufficient for the volume of fire the weapon had to provide, and the provision was enhanced to four spare barrels. Any barrel of the Breda 30 is heavier than that of a BAR, and can fire more rounds first to overheat.
So how many BARs are needed to provide the volume of fire of a single Breda 30?
The USA could simply adress BAR's issues by throwing more rifles at the problem, but that doesn't mean it was better than anything else.
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@TrangleC Yeah. That's the difference. The difference is between extracting the old magazine, inserting the new one, and opening the magazine, inserting the clip, closing the magazine. Many people, like you, think everything they are not used to is a big issue.
In reality the time spent in reloading has very little importance. Is a problem only for harmchair "experts". IE the wartime instructions on the use of the BREN provided a practical ROF of one magazine a minute. It was contemplated an "exceptional" ROF of four magazines a minute, warning that, at that rof, the barrel had to be changed after 10 magazines (so two minutes and half of fire), and the entire squad had only 20 magazines available (so 5 minutes. Battles tend to last a little more). A second more in reloading counts for nothing.
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The bolt carrier is the part where the recoil spring acts, the proper bolt, or bolt head, is the part in contact with the cartridge and that has the extractor, and so pushes the cartridge in the chamber and extract the spent case.
The MG42 is a short recoil weapon, but its not a simple short recoil weapon, like a semiauto pistol, where there is a single piece bolt that recoils at the same speed of the barrel until the barrel stops and the bolt continues snatching the case out of the chamber. The MG 42 instead have a system whose purpose is to slow down the bolt head in respect to the bolt carrier, when the bolt separates from the barrel, to prevent extraction problems, cause pure short recoil systems (like those used in handguns) and long bottleneck cartridges doesn't match well. The rollers on the MG42, like the inclined surfaces on the MG34, or the accelerators on the M1919 and Breda SAFAT, are not bells and whistles added cause they were nice. All those systems are complications added to prevent the extraction problems that a simpler short recoil system /like that of a semiauto pistol) would have had.
As for the Breda 30, its not like the Breda technicians really didn't know what they were doing, and didn't think to enhance the locking time, is that that wasn't the problem. The "simpler" solution would have been to not make the locking ring rotate at all (it should have acted like a simple barrel extension), and adopt a two piece bolt, with a rotating bolt head (to unlock it from the barrel) and a not rotating bolt carrier/striker that is pushed back at double the speed of the bolt head due to inclined surfaces, like in a SIA1918 - or in a MG34.
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You asked for the worst LMG. M1918 BAR simply wasn't there for WWI, that's where it should have been, so it doesn't count if it had issues or not. It makes it a FAR worse gun than both the Breda 30 and the Chauchat.
M1918A2 had a lot of issues (complicate to field strip and clean correctly, subject to jammings if not cleaned correctly, the pencil barrel overheating fast and without the possibility to replace it, unfit for firing in prone position...), so much that, had not the war ended, US would have replaced it with the WAR (Winchester Automatic Rifle) despite the logistical nightmare it would have been.
If it was better or worse than the Chauchat or the Breda 30 is matter of debate. It depends mainly in the role you want to use it. The BAR was a better ambush weapon than the Breda (even if this advantage had been exploited much more in Korea than in WWII) but, in an automatic support fire role, it could provide only a fraction of the volume of fire of a Breda 30 (a Breda 30 barrel needed to be replaced after 200 rounds of continuous fire. At the start of the war, Breda 30s were issued with two spare barrels. Soon it was recognised ti was not enough, and that had been increased to 4 spares. Do the math). Obviously the US could cope with any inherent shortcoming of the weapon by manufacturing a shitload of them.
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Pure short recoil systems (like those used in handguns) and long bottleneck cartridges doesn't match well.
In a short recoil system, in the moment the barrel stops, the case, in respect to the chamber, abruptly passes from "0" to the max speed. Long rifle cases have a lot of surface that's stuck to the chamber's walls, so, even if the pressure isn't high, with this abrupt acceleration there are high chances to damage the cases, sometimes break them, and so jam the action.
To avoid this, there are several possibilities. To unlock the bolt from the barrel first than the rearward motion of the barrel ended, so allowing the residual pressure of the gasses to start extracting the case first than the barrel stops ("chiusura labile", like in the Fiat Revelli 1914). To use a lever action to ensure that the bolt recoils slightly faster than the barrel ( Browning M1919, Brixia 1920, Breda SAFAT...). To reduce the locking surface of the case (fluting the chamber). Or to reduce the friction between the case and the chamber (lubing the case).
Pure blowback weapons are safer in this repect. It's only a question to have enough mass in the bolt so that the energy of the cartridge can't move it rearward enough first than the pressure reaches safe levels.
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@michaels5210 Despite the existence of people that take them as gospel, these clips are amateur works, and I take them as that.
The "shifting zero" is the classic example of a problem invented because you "know" that the weapon is bad, and so you feel to have to illustrate some "problem".
The MG42/MG3 has the front sight on the barrel shroud exactly like the Breda 30. None ever noticed that being a problem in 80 years of use of the weapon.
The DP-27, despite having a fixed barrel, and so it could have had the front sight on the barrel, had the front sight on the barrel shroud exactly like the Breda 30. None noticed it being a problem for all the decades of use of the MG.
Every modern MG has an optic fixed to the receiver that doesn't compensate for the barrel change. None noticed that being a problem to this day.
We are used to movies where weapons always works, but that was not the case in WWII. Then an automatic weapon jamming was not a problem of "if" nor a problem of "when". It was a problem of "how often". At that time it was a REAL problem to manufacture magazines that were so well built to not have feeding issues and so cheap to be discarded on the field. Even the Brits experimented tilting magazines with the BREN (they didn't adopt them in the end, but they were much more awkward than that of the Breda, and you needed two clips to fill one). It was still a felt problem for the NATO countries in the '50s. Have you ever wondered why the M14 has a stripper clip guide? This is the stripper clip of a Canadian FAL, does this remind you something? Only that you need TWO of them to fill a magazine ( https://i1.wp.com/www.forgottenweapons.com/wp-content/uploads/2019/07/Screen-Shot-2019-07-02-at-8.59.38-AM-copy.png?fit=684%2C738&ssl=1&w=640 )
"large gaps to allow gunk to get into ammo" is another "harmchair problem". A minor issue that harmchair "experts" inflates to gigantic proportions "that gun will jam at the slightest sign of dirt!" Ironically the same people seem to came over belt feeding. Were belts closed?
I said BOLT. Bolt body, extractor, striker, striker spring, four parts. Do you want to add the locking ring despite it not being really part of the bolt? Make five. A BREN BOLT ASSEMBLY IS MADE OF 30 PARTS.
All in all the Breda 30 was an unsatisfactory weapon for several reasons, but the difference between the best and the worst WWII LMG is a question of nuances.
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@michaels5210 When used as LMGs, the MG42 and MG34 used a 50 rounds belt can (that the MG eats in 2.5 seconds). Had you ever seen a MG42 gunner trying to change it? It's MUCH quicker to change two or three magazines, even reload the Breda 30 two or three times.
It's not by chance that the concept of GPMG took decades to impose itself (It practically needed them to be almost always carried by trucks) and it's not a definitive victory. The General Dynamics NGSW doesn't have a belt-fed option. And you can see how to change some magazine is infact faster than changing the short belts of the other bids.
The rate of fire of the Breda is NEVER mentioned as a problem of the weapon in Allied reports. Instead Allied reports indicates that the Breda was more apt than the BREN exactly to be used by a single man, infact a single gunner, with the BREDA, can both reload and change barrel without changing his position, or the position of the weapon. They indicate as issues instead the lack of a carrying handle and that of a dedicated fixed tripod (BUT NOT THE RELOAD OR THE RATE OF FIRE). See how the people that REALLY used the weapons back then gave importance to COMPLETELY DIFFERENT THINGS than what modern harmchair "experts" tend to do?
IE, Ian just reviewed the DP-27.
It has a quick exchange barrel, right? Not really. Hypotetically, by moving the weapon out of line and grabbing the scorching hot muzzle, you could change the barrel, but in reality, no spare barrels were provided to the gunner.
The pan magazine was a good solution, right? Not really. You can't really change magazine without looking at what you are doing, so exposing your head over the weapon. A thing that can easily have lethal consequences.
The M1 Garand with its pencil, not quick change, barrel could provide a laughable volume of fire in respect to the Breda 30, or any other real LMG.
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@michaels5210 The BAR, with its pencil, not quick change, barrel could provide a laughable volume of fire in respect to the Breda 30, or any other real LMG. At the start of the war the Breda 30 was issued with two spare barrels. After the first battles, it was deemed to be insufficient, and the provision was rised to four. That means there was the real problem to fire more than 600 rounds in quick succession with the Breda 30. Good luck to do anything close with the BAR.
The lone MG operator in WWII exists only in Hollywood. A US B-team (the one with the BAR) was composed of gunner, assistant gunner, ammo bearer. At least three people. The mag change of the BREN was made by the assistant. To operate any WWII belt fed MG without someone holding the belt meant to be in search of stoppages.
As for practical volume of fire, the BREN manual allowed the operator to fire ONE MAG FOR MINUTE in normal circumstances. In exceptional circumstances that volume of fire could be enhanced to four mags for minute. Keeping in mind that, at that pace, the barrel had to be changed after 10 mags, and the entire provision of the squad was of 20 magazines. Battles tend to last for more than 5 minutes. The allied reports on the Breda 30 NEVER mention volume of fire as a problem of the weapon.
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No.
The 6.5 Carcano is not "whimpy" (it's more powerful than the 5.56 NATO and in the same range of the 6.5 Grendel and 6.8 SPC). The problem of short recoil actions with rifle cartridges is that, when the barrel stops, and the bolt keeps on moving, the cartridge, in respect to che chamber, accelerates fron "0" to the max speed instantly, and that can cause a too harsh extraction and a case rupture (the problem was not that the MG didn't extract, but that it ripped the base of the cartridge from the side) .That doesn't cause problems with pistol cartridges, because they are short (so there is not much surface of the case attached to the chamber) and low pressure. But already with shotgun ammos, Browning invented the complicated long recoil action to give the cartridges all the time in the world to shrink down and be extracted at slow speed.
All the short recoil rifle action that don't use oil or fluted chamber use a "cam" system that starts to extract the cartridge when the barrel is still moving (Fiat 1914, Browning 1919, MG42...).
BTW, the Hispano Suiza HS404 20mm cannon, and all its derivates in use still nowadays, uses oiled cartridges.
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DOUG HEINS The Brits not only used the captured ones, but printed manual in English for the British gunners issued with them. https://www.yumpu.com/en/document/view/11720886/breda-model-30-manualpdf-forgotten-weapons
For the Allied opinion on the Breda 30, see Tactical and Technical Trends (the magazine of US intelligence), No. 7, Sept. 10, 1942, "Use of Captured Italian Weapons": "The Breda light machine gun is similar to the British Bren gun. It is mechanically superior to the Bren gun under dusty conditions. It requires only one man to service it as compared to several for the Bren gun. It has a slightly higher rate of fire than the British weapon. Its disadvantages are that it has no carrying handle, cannot be fired on fixed lines, and has no tripod mounting."
For that matter the 6.5x52 Carcano has 43% more muzzle energy than 5.56 NATO, 22% more than 7.62X39 and 6.8 SPC and about the same of 6.5 Grendel. If you don't consider that adequate, is only your problem.
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@BobSmith-dk8nw Making appreciations on your interlocutor isn't doing you any favour.
Fact is that armours for the water jackets had been made, armours for barrels haven't. Heavy water jackets had been replaced with heavy metal barrels in MMGs after WWI. A water jacket is a way bigger target than a barrel, it's way easier to damage, and, if you have a quick exchange barrel damaged, you can simply replace it. It's quite obvious that any piece of equipment can be moved. But MMGs are not made for that, and so to try to use them like that had limits.
Both LMGs and MMGs had a role in WWII. Soviets had the DP-28 and the Goryunov. Italians had the Breda 30 and Breda 37. Japanese had the Type 99 and Type 92. It's not that the US were special in this regard.
Weapons are designed for a role, and the role the BAR had been designed for was marching fire from the hip. It shown its limits in every other use (it's not that it doesn't work. It's that it could have been made better for any other role). Unfortunately marching fire from hte hip had shown to be impractical already in WWI.
The way the Marines used the weapon was the way they worked around the problem, thanks to the fact they could have more of the weapons. But more of good weapons would have worked better anyway.
Simply M1919 barrels were not changed on the field during battles. It was an armorer's job. Squads had not spare barrels, and they were not supposed to dismantle a scorching hot weapon under fire with small parts lying on the ground. If you have to dismantle a weapon under fire, something went wrong.
Overheated closed bolt MGs cook off belts because of their very same mechanics.The fact that other kind of failures can cause the same problem doesn't change this fact. If you burnt out you barrel, something went wrong either. Equipment in general is not intended to be damaged. To intentionally damage it was a way to work around the problem, while a quick exchange barrel would have solved it.
See "working around the problem". Yes, people in the army tend to know how to use the tools they were given. Being them LMGs without quick exchange barrels, or LMGs with clip-fed magazines.
See "logistics". FN modified The BAR it into a viable LMG in 1932, but the US Army preferred to keep it as it was for the sake of interchangeability of parts. The limitations of the BAR became evident only once they had been used in combat, and, at that point, it was too late. You can change the engine in an already designed airframe (the P-51 had been designed for the V-1710), not the action of an already designed MG.
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@BobSmith-dk8nw They had two, one to use, and a spare in case the first one was damaged. The magazine was normally loaded with the stripper clips while attached to the weapon. Fact is that to load them that way "wasn't a problem" at all. The magazine didn't limit the practical ROF in respect to other LMGs.
The BAR had been originally designed for walking fire. That kind of fire proved to be impractical already in WWI. In WWII a LMG was needed, but the BAR was what was in the US Army inventory, so they used it. FN modified it into a viable LMG, but the US Army preferred to keep it as it was for the sake of interchangeability of parts. The weapon was unfit for the task, and there were reports about BAR gunners often taken out of action, waiting for their weapon to cool off but, as said the US could simply throw more BAR to the problem. It's obvious that having 50% more weapons solves a lot of problems, but having 50% more good weapons would have solved more.
The M1917 was an HMG (47 kg with the tripod). It was not portable. It was heavier than a Breda 37 with tripod. Also, as noticed during WWI, water jackets were prone to be pierced by bullets and splinters or damaged otherwise (especially using short recoil actions, that requires the barrel to move). That's one of the reasons none designed new water cooled MGs after WWI, but they had been replaced by quick exchange barrels. obviously, if all you have is a water-cooled MG, you use what you have.
As said, If you didn't want to overheat the M1919, your ROF was limited to 60 rounds a minute. 450-500 rpm was the cyclic ROF, and yes it was regulated to be like that, like for any rifle caliber MG in WWII. There is no problem to obtain a cyclic ROF of around 1000 RPM in a rifle caliber MG. It's more difficult to limit it and, to obtain that, several "tricks" were used (heavier bolts, longer travel of the bolt, machanical rate reducers...). The long travel of the striker of the Breda 30 is meant to reduce the ROF to what was deemed as optimal too.
The M1919 couldn't be intentionally overheated because it fired from a closed bolt, so the moment it overheated, it cooked off an entire belt if the gunner didnt' intentionally jam it (notice that the Brits modified their M1919s, used in flexible mountings on aircrafts, to fire from an open bolt, the US Army never did it). Equipment in general is not intended to be damaged. To intentionally damage it was a way to work around the problem, while a quick exchange barrel would have solved it. As said, if the US had a problem with their weapons, they could throw more weapons to the problem. Others were not so lucky and so, to use subpar equipment, was more damaging for them. To change the barrels of BARs and M1919 was an armorer's job. It wasn't done on the field. It would have required to completely disassemble the weapon while scorching hot.
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@BobSmith-dk8nw I saw that clip. But I read wartime reports as well. The Allied ones. So the ones that could compare the Breda 30 to the Allied weapons their soldiers were used to. The Brits reused the captured Breda 30, wrote manuals for the Allied gunners issued with them, and wrote intelligence reports.
The magazine had never been mentioned as a problem, and not even as a curiosity. At all. The reason is the one i mentioned. The magazine didn't limit the practical ROF in respect to other LMGs (real LMGs, better to not even talk of the BAR, forced into a LMG role without even having a detachable barrel. Mind what Ian mentioned. After the first battles the provision of spare barrels of the Breda 30 was enhanced from 2 to 4. That meant that the Breda faced the real problem to fire more than 600 rounds continuously in battle). You could fire 6 Breda 30 magazines (so 120 rounds) in a minute reloading the magazine while it was attached to the weapon (the practical ROF was actually indicated in 150 RPM). And that practical ROF was needed only in dire emergency. Because the squad had not enough ammunitions to sustain it for long anyway. Battles don't last five minutes.
BTW, the M1919 had the same problem of the BAR. If you didn't want to overheat it, your ROF was limited to 60 rounds a minute. The faster you decided to shoot, the sooner you'll have to stop to cool-off the weapon. simply, if the US had a problem with their weapons, they could throw more weapons to the problem.
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the MG42 is a recoil operated weapon, but is not a purely recoil operated weapon, like a semiauto pistol, where there is a single piece bolt that recoils at the same speed of the barrel until the barrel stops and the bolt continues snatching the case out of the chamber.
The wedge that pushes out the roller is both part of the striker and of the bolt carrier, as the bolt carrier is in direct contact with it during recoil and, when the wedge shaped part recoils in respect to the bolt head , pushed by the rollers it pushes back the bolt carrier too.
The iternal spring around the striker (bolt catch) wasn't generally present in wartime MG42s, it had been introduced very late in the war only to adress cases of out of battery shots caused by the rebound of the bolt carrier. It only serves to provide to the bolt carrier a "soft landing" when the action closes. There are several models of it, some of them doesn't load the locking wedge at all (so working purely by inertia).
As for the Breda 30, I would not have adopted it. It was not that poor of a design, but it was not easily improvable, and there were better designs to start from, transfering in them the good features of the M30 (essentially, the quick exchange barrel). IE the Brixia 1920 (a rather unfortunate HMG, but a good base for a LMG), or the SIA 1918 (a scaled up Villar Perosa, but a good base for a lever delayed LMG, it already had a two piece bolt with the rear one recoiling faster due to inclined surfaces, but the rear bolt-striker was really too light compared to the front part). Waiting a couple of years, they could have adopted a gas operated LMG based on the Breda PG instead.
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And what I'm saying is that the Breda 30 had been adopted in 1930. The MG 34 did non exist then.
In 1930, the only LMG design that was demonstrabily better than the Breda 30 was the ZB vz. 26.
In the subsequent years, some other better design was introduced, but the armies usually don't replace the weapons they adopted after only few years, only cause something that could be better had been introduced somewere.
Think, for example, that the US soldiers fought in Korea with a semiauto rifle, six years after the adoption of the AK47 and ten years after the adoption of the STG44. Shouldn't the US have copied and produced a weapon such as the STG44 or the AK47, instead of providing his army with an obsolete weapon?
And, in 1959, ten years after the adoption of the AK47, and 15 after the adoption of the STG44, the M1 rifle had been replaced with a battle rifle that was already obsolete the moment it had been adopted.
Cause sometimes armies keep on designing weapons based on obsolete ideas until those proved to be obsolete on the field.
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The front sight on the barrel shroud, or the rattling barrel, are those problems that exist only in tabletop reviews, when the reviewer knows that the weapon is "bad" and has to find some reason for it to be bad. None noticed them being problems in 60 years of use of the MG42/MG3. ALL Modern general-purpose machineguns have a single optic, mounted on the receiver, how do they cope with barrel change? https://blog.1800gunsandammo.com/wp-content/uploads/2016/06/fn-762-minimi-4.jpg
The oiler was a minus. but it wasn't strictly needed, and many gunnenrs didnt' use it. Simply, already during WWI, it was noticed that, whit automatic weapons, it was all peaches and dandelions until you could use brass cased ammos but when, due to war shortages, you had to use steel cased ammos, extraction was a lot less granted. However, despite the oiler, allied reports praised the behaviour of the weapon, compared to the BREN, in dusty conditions. The heavy bolt, so with a greater inertia, star-shaped to give the dirt somewere to go instead of locking the mechanism, were plusses.
To use more than 20-25 rounds for magazine in WWII meant to be in search of problems, and it was a REAL problem to manufacture magazines that were, at one time, so cheap to be discarded on the field and so consistently manufactured to not have feeding issues (it was a problem still for the US in the '50s, that's why the M14 has the stripper-clip rail, and that was the US Army). Even the Brits tried a fixed tilting magazine for the BREN (it had not been adopted in the end, but it was much more awkward than the Breda one). The reduced volume of fire was not really a problem. A BREN gun was supposed to fire a magazine a minute in normal battle conditions. At the start of the war it was allowed an "emergency" rof of seven magazines/minute. during the war, due to battel experiences, that was reduced to four magazines/minute, and advertising the gunners that, in those conditions, the barrel had to be changed after ten magazines, and the entire provision of the squad was of just 20 magazines.
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Both the MG34 and MG42 are mainly delayed blowback actions, with a secondary help by the short recoiling barrel, and the Vickers unlocks the barrel from the bolt way before the barrels stops, allowing the bolt and the barrel to start to separate slowly.
None of them is a pure short recoil design. Like that of an handgun, or that of the Breda M30. They have a short recoiling barrel, a bolt, AND some other system (two piece bolt with the parts recoiling at different speed, toggle, ecc...)
That's revealing in itself. A pure short recoil action is simpler than the systems used in MG34, MG42, Vickers and so on. Why had they to complicate the designs, if a pure short recoil action can work flawlessly?
Cause it doesn't work so flawlessly, so you have to invent something to make it work.
Obviously gas operated MGs can have extraction issues, and lever delayed blowback can have them, and simple blowbacks can have too. The fact that pure short recoil actions and long bottleneck cartridges doesn't match well doesn't mean that only short recoil actions can have extraction issues. But in those cases is really question of bad tuning.
The HS 404 is a "gas unlocked recoil operated" design. The gas doesn't cycle the action, but simply unlocks the bolt, and then the residual pressure of the gasses in the barrel cycle the action. It's not impossible to make a similar design work without oiling the cartridges (The Scotti action worked the same way, only with the bolt rotating instead of tilting, and only the Mod. X rifle required oiling, while all the MGs didn't), but to find the perfect timing to open the action (when there is enough pressure in the barrel to cycle the action and not enough to damage the cases) is more difficult than in a straight gas-operated weapon.
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Today it could seem strange, but, in the first half of XX century, to design a detachable magazine that was at the same time so cheap to be discarded on the field, and so well and consistently built to not cause feeding problems was really an issue. The BAR and the BREN were plagued by jammings caused by defective magazines, ant those had been built by bountries that had not raw materials shortages. The British actually designed a fixed magazine for the BREN, loaded with two 15 rounds clips (they didn't adopt that, but it was really awkward compared to the Breda).
So, in 1924, FIAT came out with a LMG design (FIAT 1924) that had a fixed magazine on the left of the weapon, loaded inserting a 20 round clip (similar to that of the subsequent Breda) from the right. In exchange of a little time lost in recharging, all the feeding problems were avoided.
The flaw was that, to load a MG insrting a clip from one side, the gunner, or the servent, had to expose himself a little, and, laterally pushing the weapon, they can move it, loosing the line of sight.
So the Breda had the subsequent evolution. By tilting the "fixed" magazine, in exchange of a little more time lost in recharging, the gunner could load the gun (and change the barrel, for that matter) without changing position at all.
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To me the original ZB vz.26 was superior to the BREN, cause the BREN had to use rimmed cartridges. I think a shorter barrel VB vz. 26, with a 25 round magazine in 6.5 Carcano would have been the perfect LMG for the Italians in WWII.
That said, the Italians used the Lewis gun in WWI, it was not like they didn't know it. The Lewis Gun was a good weapon for WWI, but it was not by chance that everyone of its users, bar one, phased it out of first line use first than WWII (and it was not by chance that 20-25 round magazines was the norm for WWII LMGs). The Lewis gun was heavy, it didn't have a quick exchange barrel, it was extremely sensible to the slightiest trace of dirt, it jammed easily and jammings were very difficult to clear, it was difficult to field strip and clean, to replace the pan magazine required the servent to expose himself, since it had to be made while looking at the weapon from above. Even in WWI it had been noted that it was more an ambush weapon, when it could fire from at least partially protected positions, than a real attack weapon.
Unforunately there is a tendency, on the net, to sanctify some weapon and to damn some other only on the base of often repeated rumors, and regardless of what the contemporaries (those that had to DAILY use those) thought of them.
From Tactical and Technical Trends (the magazine of US Intelligence) No. 7, Sept. 10, 1942 "Use of Captured Italian Weapons":
"Breda Light Machine Gun". The Breda light machine gun is similar to the British Bren gun. It is mechanically superior to the Bren gun under dusty conditions. It requires only one man to service it as compared to several for the Bren gun. It has a slightly higher rate of fire than the British weapon. Its disadvantages are that it has no carrying handle, cannot be fired on fixed lines, and has no tripod mounting.
Was the Breda 30 the best, or among the best WWII LMGs? Surely not. But it get the job done, and, on the field, the differencies with other designs were very limited. MInd that, to use the four spare barrels the Italians deemed necessary for the Breda 30 after having used it in combat, you have to fire at least 800 rounds in quick succession. that was what the Breda was capable of. Try it with a Lewis Gun, or a BAR for that matter.
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Actually, when this MG had been adopted (1930) the only design around that was really demonstrably better was the ZB vz. 26.
Today it could seem strange, but, in the first half of XX century, to design a detachable magazine that was at the same time so cheap to be discarded on the field, and so well and consistently built to not cause feeding problems was really an issue. The BAR and the BREN were plagued by jammings caused by defective magazines, ant those had been built by bountries that had not raw materials shortages. The British actually designed a fixed magazine for the BREN, loaded with two 15 rounds clips (they didn't adopt that, but it was really awkward compared to the Breda).
So, in 1924, FIAT came out with a LMG design (FIAT 1924) that had a fixed magazine on the left of the weapon, loaded inserting a 20 round clip (similar to that of the subsequent Breda) from the right. In exchange of a little time lost in recharging, all the feeding problems were avoided.
The flaw was that, to load a MG insrting a clip from one side, the gunner, or the servent, had to expose himself a little, and, laterally pushing the weapon, they can move it, loosing the line of sight.
So the Breda had the subsequent evolution. By tilting the "fixed" magazine, in exchange of a little more time lost in recharging, the gunner could load the gun (and change the barrel, for that matter) without changing position at all.
In the end, ten years later, at the start of WWII, it was an already outdated design, but it was actually not that bad. There is a tendency, on the net, when a weapon had some defect, tho extremize them, concluding that "it's the worst gun ever made!", "I would have rather fought naked than carrying that piece of junk!" and things like that. But those are modern days shenanigans. The contemporaries of the weapon, those that had to fight them daily, and reuse the captured ones, thought it was not that bad.
From Tactical and Technical Trends (the magazine of the US Intelligence) No. 7, Sept. 10, 1942 "Use of Captured Italian Weapons" :
"Breda Light Machine Gun". The Breda light machine gun is similar to the British Bren gun. It is mechanically superior to the Bren gun under dusty conditions. It requires only one man to service it as compared to several for the Bren gun. It has a slightly higher rate of fire than the British weapon. Its disadvantages are that it has no carrying handle, cannot be fired on fixed lines, and has no tripod mounting.
Mind that, to use 4 spare barrels (the number the Italians deemed to be necessary after having used the gun in combat), you have to fire at least 800 rounds in quick succession. So much for the gun not being capable to really provide automatic fire.
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Thanks to you for the kind reply :)
The BAR was not really an LMG. It wasn't apt for firing in prone position, it wasn't apt for sustained fire (there was a reason if the Italians carried two spare barrels for the Breda 30, and then enhanced them to 4 spare barrels. How much the thin and fixed barrel of the BAR would have lasted in the same conditions?), it was difficult to field strip and clean, and, if not cleaned properly, it jammed easily. The only really improved version, with a quick detachable barrel and an effective bipod, was adopted by the Swedish only in 1937.
It has to be noted that, to use 4 spare barrels, you have to fire at least 800 rounds in quick succession. So much for the gun not ben capable to really provide automatic fire.
That said. To not be misunderstood, the Breda 30 had really been, all in all, a less than satisfactory weapon. And the Italians would have done better adopting the ZB vz. 26. (that they tried).
But there is a tendency, on the net, when a weapon had some defect, tho extremize them, concluding that "it's the worst gun ever made!", "I would have rather fought nacked than carrying that piece of junk!" and things like that.
Reality is that the weapons was actually not that bad, and the contemporaries, those that had to fight them daily, and reuse the captured ones, thought it was not that bad.
From Tactical and Technical Trends (the magazine of the US Intelligence) No. 7, Sept. 10, 1942 "Use of Captured Italian Weapons" :
"Breda Light Machine Gun". The Breda light machine gun is similar to the British Bren gun. It is mechanically superior to the Bren gun under dusty conditions. It requires only one man to service it as compared to several for the Bren gun. It has a slightly higher rate of fire than the British weapon. Its disadvantages are that it has no carrying handle, cannot be fired on fixed lines, and has no tripod mounting.
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