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Comments by "" (@neutronalchemist3241) on "Forgotten Weapons" channel.
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Some special unit was given that Colt, without any competition, mostly due to Gen. William M. Keys connections, and had little else than just problems with those. That's why it had been replaced after only four years of service, to adopt a 9mm.
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The Marine Corp adopted the M9A1 actually. Some special unit was given that Colt, without any competition, mostly due to Gen. William M. Keys connections, and had little else than just problems with those. That's why it had been replaced after only four years of service.
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See the Beretta 1951 for example, or the SIG P210. It's common with single action only pistols with a "push type" trigger bar.
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The Marine Corp adopted the Beretta M9A1 in 9mm. Some special unit was given that Colt, without any competition, mostly due to Gen. William M. Keys connections, and had little else than just problems with those. That's why it had been replaced after only four years of service, to adopt a 9mm.
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Some special unit was given that Colt, without any competition, mostly due to Gen. William M. Keys connections, When they tested them, they found that they couldn't even complete the planned reliability test, since none of them could pass 12.000 rounds count without the slide cracking. http://soldiersystems.net/2012/07/20/marsoc-winning-colt-guns/ "Due to cracks which developed in the pistol slides during Reliability Testing, that test was not able to be completed as planned. Testing was planned for 15,000 rounds per pistol, but stopped early at 12,000 rounds".
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Glocks replaced the M45A1 (not the Beretta) before the SIG was selected by the Army.
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@marcuscook5145 I'm comparing the military loads the author of the comment carried. The result, like it or not, is that the 9mm had not " half the kinetic energy" of the .45 ACP but had more kinetic energy than the .45 he carried. M882 is not a "modern 9mm load" by any mean. It's almost 40 years old.
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The 9mm M882 ammo had a 124 grain bullet traveling at 1250 fps. 583 joules of energy The standard military .45 load had a 230 grain bullet traveling at 830 fps. 477 joules of energy.
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When it had been finally tested, none of the samples tested for reliability had been able to reach the planned 15.000 rounds. They had to be stopped at 12.000 rounds because the slide cracked in all the samples (bar one, where the frame cracked). So I guess no.
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That's why militaries worldwide massively use 9mm.
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The Marine Corp never adopted the M45A1. They adopted the M9A1.
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Unfortunately the M45A1 was a good looking piece of garbage that couldn't complete the planned tests due to cracking slides, adopted out of any competitions due to the connections of Gen. William Keys.
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M Via http://soldiersystems.net/2012/07/20/marsoc-winning-colt-guns/ "Due to cracks which developed in the pistol slides during Reliability Testing, that test was not able to be completed as planned. Testing was planned for 15,000 rounds per pistol, but stopped early at 12,000 rounds"
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@MEGALODONGERS It almost seems the designers of the .30 super Carry got carried by the idea of the superpressure. More than doubling the pressure, they obtained a meagre 20% raise in energy when both are fired from a 5″ barrel. A “8mm RS Magnum”, with a 1mm longer case (so 30mm overall lenght, still compatible with 9mm Para pistols) and a shorter 100gr bullet, enhancing the internal volume of the case, and so the load, without increasing much the pressure, would have probably obtained similar results, remaining also compatible with blowback firearms, so being much more versatile.
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@eloiseharbeson2483 .30 Super Carry is 45.000 psi and 1250 fps out of a 4" barrel. .30 super Carry 100gr, 380m/s, 470Joule of energy. 8mm Roth Steyr, 116gr, 332m/s, 409 Joule of energy. With a 100gr bullet for both, they would be pretty close.
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Yeah. The 9M38 was a very hot Luger +P+,
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Almost all the SMGs of the time had the same problem.
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@ShutUpBubi And it's lighter, has better ergonomy, and far better double-stack double-feed magazines. ;)
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it can, and did, fire stansdard 9mm luger cartridges, but it was adopted along the "M38" cartridge, that's a very hot load, a sort of super +P+
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It's classified as a "sport weapon", so it can have a magazine up to 29 rounds, but you can't hunt with it (who would anyway?)
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More a professionally fine tuned one.
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It's more an evolution of the MAB 18/30.
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Yeah. It can fire bot the 9mm Luger and 9mm Glisenti, but for it was specifically developed and commonly used the "9mm M38" cartridge, that's a sort of super +P+ (124gr, 428m/s at the muzzle, so 732J of energy, that's in 357 SIG territory).
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Like making British battleships hit the bottom at Alexandria.
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1914, and Belgium already had FN. It could have gained a contract only if the country had sayed in the conflict for longer, and so, like others did, had to use every handgun available.
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Tripp426 Anywere, it's an obsolete caliber.
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It's 9x20 Browning, and it's not easily obtainable.
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They were made in Iraq. https://www.forgottenweapons.com/touring-the-iraqi-tariq-pistol-factory/
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The weird thing is that this MG had been adopted in 1957. For how much sound the basic mechanism is, for it's execution it's like the designers konwingly decided to ignore several decades of experience in small arms designs, or simple common sense, like they were things of the past, that didn't apply to them. Retaining nuts had been commonly used in infantry rifles (relatively inexpensive pieces of equipment) since the late 19th century, how it's possible that a post WWII GPMG (a valuable piece of equipment) has a screw that can get loose during use? The problem of changing a hot barrel without using pads and without the gunner having to move from prone position had been adressed since the end of WWI. The ZB vz.26 can do it, the Breda 30 can do it, the Bren can do it, The MG34 and MG42 can do it, the M60 can't! And so on...
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@maledetto1221 the shortening of the old rifles had been made in 1924 and ceased in 1928, when they started to build brand new 91/28TS. The situation ten years later was completely different. Simply the production of new rifles started in 1938, the war in Europe begun a year later, and it was clear that, in case Italy decided to join it, there would have not been enough time to equip all the army with the new caliber. The 91/24 TS were intended to be stopgap weapons for rear echelon troops not destined to the first line. The same troops that in WWI had been equipped with converted Vetterli.
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No, it had been made by the, now defunct, Brescia state arsenal (then there were those made by "Mida Brescia" e "FNA Brescia"). The ones made by Beretta are marked "Beretta Gardone".
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Yes. the 91/24 tend to keyhole, but they were intended to be stopgap weapons assigned to rear echelon troops, like the ones that in WWI were armed with converted Vetterli rifles.
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All the Carcano videos have been already filmed, so the pronunciation will remain the same in all of them.
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@Danimark_92 "Brescia" written on a Carcano rifle indicates a precise manufacturer (ONLY ONE), not a city. It indicates that the manufacturer is the state arsenal of Berscia (not other manufacturers located in Brescia. ONLY ONE), not the city. In diferent cities there were different state arsenals, that were different manufacturers. There was nothing like a "royal arsenal" that was located in different cities. There was an arsenal in Turin, One in Brescia, one in Terni, one in Torre Annunziata... that were different industrial entities.
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@Danimark_92 So they were the name of the manufacturers, not simply of the city.
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They were the name of the state arsenals.
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@222TripleJ Per il MAB 18 e il MAB 18/30. Il MAB 38 non cicla con il 9mm Glisenti.
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@222TripleJ No, è più alta. Veniva ottenuta dando al proiettile una base leggermente concava. In questo modo si aumentava la capacità del bossolo, e si poteva mettere più polvere senza aumentare la pressione. La velocità di bocca, rispetto ad un 9mm Para, aumentava di circa 20m/s.
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Veramente è calibro 9M38, che è una versione potenziata del 9mm Parabellum.
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It was common to all the first generation SMGs. Bumping the stock, the bolt retreats enough to pick a round from the magazine, but not enough to engage the sear. The crossbolt safety of the 38/49 prevented that, but it had to be engaged to work.
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.45 ACP and 9mm SMGs are usually quite heavy. The MAB 38/42 is actually lighter than the M3 Grease Gun and only slightly heavier than the Sten.
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more carbon deposits.
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In 1932 this was way closer to be a serviceable semiauto rifle than the Garand was. It only needed some further refinement. "unfortunately" the Italian Army never had the money to afford the transition to a semiauto.
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He made closed bolt versions also. Mind that this action did born for a 20mm automatic AA gun, then it had been adapted to this rifle, belt fed 12.7mm HMGs and 7.7mm MGs, 6.5mm LMGs and so on. It's a machinegun action (so a naturally open bolt action) adapted for a rifle. The closed bolt versions came later.
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It's pretty easy to turn an open bolt action to a closed bolt. It's enough to add a spring (to tension the firing pin, that so becomes a striker), and make so that the sear catches the firing pin (IE making it "L" shaped with the short side of the L protruding out of the bolt to be catched by the sear) instead of the entire bolt.
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This rifle is the only Scotti action that for some reason required lubing (even if in the manual is said that wetting the cartridges with water worked too) Scotti used the same basic action for any caliber up to 37mm AA guns. The Scotti LMG and auto rifles in 6.5 Carcano didn't required lubing. Probably, in the Model X, it had something to do with using the Carcano en-block clips, that weren't made for auto fire. This is the Scotti Automatic rifle (only experimental) https://www.youtube.com/watch?v=129fvBDfxL4 This is the Scotti LMG (This one had been used in Jugoslavia) https://i.pinimg.com/736x/45/63/b7/4563b7e40ee5908e63c697cd04c35af3.jpg
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@tiortedrootsky To retreat, the bolt tend to rotate the receiver clockwise. At the same time, it tends to rotate the bolt carrier anti-clockwise, and the carrier is solidly attached to the receiver, so the net result is zero. As long as the bolt is geometrically locked, the net result is always zero. It's only the bullet pushed forward that, by reaction, pushes the bolt and everything attached to it rearward.
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@tiortedrootsky For the headspace, the only thing that counts is the contact surface between the locking lugs and the slots. All the rest doesn't even need to be that precision machined.
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Simply this rifle has the recoil spring behind the bolt, an M1 Garand has it around the op-rod. Other rifles with this scheme "hide" this by having part of the receiver in the stock (IE the AR15), but that makes the disassembly more complicate.
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Here the experimental Scotti LMG using the same action (here the aerial version, there were versions with buttstock too). https://i.pinimg.com/originals/71/6f/8e/716f8e33be4f124274a6de9457462b65.png
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