Comments by "" (@neutronalchemist3241) on "Forgotten Weapons" channel.

  1. @ You are welcome. If you are interested, look at the gas setup of the Degtyaryov DP-27, because it's exactly the same of the Ljungman (and probably inspired it). Only, in that case, the static piston (without sealing rings, exactly like in the Ljungman), holed in the center to let the gas pass, is at the end of the barrel, and, consequently the mobile cylinder/cup, solidal to the carrier, is at the end of a rod.
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  2. The rifle used the same rounds of the Italian and German 20mm AA guns, so there was a wide range of SAP, HE and incendiary ammos available for it.
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  3. It would be great ot have a review on the "Bernardelli Semiautomatico" shotgun, made form the end of the '40s to the end of the '60 (so a quite successful design). Other than having a detachable magazine, it used a peculiar delayed blowback action that many think it's a forerunner of the Inertia system. https://www.armeriasebina.it/uploads/2013/06/Fucile-Semiautomatico-BERNARDELLI--800x533.jpg
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  4. The MAB38 is still in the Italian Navy inventory, mostly for parading.
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  5. In 1930, when it had been adopted, there were not many better designs around.
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  6. The Austrians straight copied it.
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  7. It seems to be a good design for the '20s, but the quantity of accurate machining required for each of them seems to be at swiss-rifle level.
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  8. I really like that design, but I heard that they kicked a lot. How was the perceived recoil?
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  9. The 5 rounds limit is for hunting. Sporting rifles' magazines can have up to 29 rounds. It only depends on how the rifle is classified.
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  10. Long recoil actions tend to be quite clean, but in the Cosmi the entire action can be extracted pressing a button, for ease of cleaning.
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  11. The pistol used to kill Ghandi.
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  12.  @hendriktonisson2915  They were not very happy with the performances of the 6.5 against light armors. The 8mm Breda, with a AP bullet, could pierce through 8mm of steel, so it was good for vehicle weapons. To be used for an infantry rifle however, it would have required an heavy rifle, and the troops would have carried less ammos.
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  13. Yeah, cerimonial purposes... http://2.bp.blogspot.com/-OyCTyo-O6vo/UE5K9gOVKlI/AAAAAAAAFAc/sx9F-LeWdCc/s1600/15-6dbf6eeff5.jpg http://1.bp.blogspot.com/-KR-fZYrUvS4/UE5K-RfY8WI/AAAAAAAAFAk/yS3NWBT3dxw/s1600/420746_2931775367694_1060315192_32419321_999907315_n.jpg http://1.bp.blogspot.com/-WZX6VeQSnLI/UE5K_Ur97NI/AAAAAAAAFAs/4AAICxSfgg4/s1600/559545_3863517752172_1405333798_33695823_849344934_n.jpg
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  14. Heavier, more complicate, slower to reload and with a cartridge less in the magazine for no real gain.
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  15. Cloth belts had a lot of issues, and made MGs action really complicate (a cartridge has to be extracted from the belt rearward, then rised or lowered out of the way of the belt, then pushed into the chamber). Not by chance, they were pretty much obsolete at the end of WWI. Using a magazine, or a strip, simplified a lot of things. Not by chance this and the Hotchkiss (a strip fed MG) are the simplest actions among WWI HMGs. But manufacturing a staggered 50 rounds magazine with WWI technology meant to be in search of problems. So, here's a box of ten very simple 5 rounds magazines.
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  16. Almost all the SMGs of the time had the same problem.
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  17. More than other, the autor of Gunsmith Cats believed in the "CZ75 mithology" that was going on in the US in the '80s, fuelled by the appreciation of Jeff Cooper and by the fact that, since it was very difficult to import original ones, there were almost no other opinions on them.
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  18. Not two cycles. It feeds when the bolt goes forward and extract when the bolt goes rearward. The only change id that the spent brass, instead of hitting an ejector, hits the rear rim of the feed strip, and stays there.
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  19. It's a short recoil mechanism. The barrel and bolt are linked by a solid piece of metal. There's no power of the cartridge that can squash the locking block and unlock the mechanism in advance.
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  20. To fire a burst when the selector is in semiauto requires such a precision in finger movement that it's impossible to acieve it not for purpose.
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  21. Beretta good, handgun stage too difficult for the shooter.
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  22.  @TraTranc  Uh, no, since, as you said, other higher caliber rounds WERE available. Why someone that wanted an higher caliber round would have bought a pistol in .32 ACP when 7.65 Parabellum and .45 ACP (not to say ALL the revolver calibers) were regularly on the market? The Bernardelli B76 even had two alternative versions available for civilians, one in 7.65 Para and one, blowback, in .32 ACP. It was a question of choice. But it's revealing that NO weapon manufacturer thought to build a pistol for one of the many 9mm calibers equivalent to 9mm Para (9mm Largo, Steyr, Winchester, .38 ACP/Super...). They made 9mm pistols for police/military contracts, then a version in .7.65 Para to cover the scarce civilian requests for breechlock guns they expected. Even only talking about blowbacks, had there been a real request for larger calibers than .32 ACP, even not being .380 ACP available, manufacturers would have done them in 9mm Makarov, but none did.
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  23. In 1930 quick exchange barrels were pretty estabilished. To not have one in an air-cooled MG that even fires from a closed bolt is a pretty inexcusable mistake. Air-cooled, fires from a closed bolt, and it hasn't a quick exchange barrel = It's a magazine cook-off waiting to happen.
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  24.  @pdalia  The Gewehr 41 didn't work that well. Well designed mechanisms work. Ill designed ones don't. Indipendently by the nationality of who designed them.
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  25. That's what happens when someone gets attached to an idea. There is really no reason for a revolver to work with sprockets. Even wanting it to be DAO and striker fired, a standard straight rod to rotate the cylinder and and flat springs contained in the handle to actuate the striker would be far simpler and more compact, but tyhe creator evidently got attached to his original idea.
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  26. Its field strip is a bit easier than that of the M1 Carbine.
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  27. No.
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  28.  @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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  29.  @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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  30. A service DA/SA handgun needs a decocker (that was not the case of the M34, that was SA only). That had been the request of the Italian Police to Beretta. At that point Beretta put it on the slide (92S model) because that's the safest place to put one. The slide mounted decocker is the only one that decocks the hammer completely, since it at the same time rotates the firing pin out of the way of the hammer. All the frame mounted decockers only leave the hammer in half-cock position.
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  31.  @ScottKenny1978  The Beretta 92 too didn't have a decocker in 1974, but it was added later, due to Italian Police request, with the 92S. CZ (that didn't evolve the design until 1992, when they added a firing pin block) only came later, with the CZ75BD. In the meantime, after having experimented many unintentional discharges caused by the agents attempting to manually decock an hammer when still full of adrenaline for a shooting, many Police Departments in the US made mandatory for SA/DA semiauto to have a decocker too.
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  32. The gunner had one spare.
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  33. The Thompson was heavier, more complicate, less stable, the magazine was atrocious. "Hypocrisy" was shared by the GI. See Ordnance Went Up Front, of the then Ordnance Sergeant Dunlap, Roy F., p. 58: "No one ever bothered with any other kind of submachine gun if he could get hold of a Beretta M38, and keep it. The New Zealand boys especially loved them. Even the Germans liked it, and they hated to admit anything was good except their own stuff".
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  34. Any army entered the war with a collection of equipment among whose there were the good ones, the acceptable ones and the bad ones. It's the result of a selection process where most of the actors had good intentions, but someone had antiquated ideas, and none could foresee the conditions the next war would have been fought. This LMG is actually not even that bad. Almost all the bashing is a result of internet era, where ideas tend to be repeated over and over, any time radicalizing them to get more attention. Allied wartime reports compared this weapon favourably with the BREN.
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  35. There is nothing saying this action not being sound. The Isard spring has 28 twists, the 1911 32, the Astra 27. The thickness of the wire is about the same. In all likelyhood they had about the same stiffness when new. The stiffness of the mainspring has practically no importance in keeping the action of a blowback handgun closed for enough time to safely eject the case. It's the mass of the slide that does all the work. The only real function of a stiffer mainspring is to mitigate the felt recoil and the force with which the slide slams into the receiver at the end of it's travel, so a stiffer spring prolongs the life of the frame/slide. However, the force that has to be absorbed is the same for blowback and short recoil pistols. Infact, IE, the Hi-Point mainspring has the same stiffnes of the Glock. More than pointing to the dimension of the spring, Ian should have measured the stiffness of the spring. A smaller spring can have the same stiffness of a bigger one, it wears out quickier, and so has to be replaced more often, but the durability of the spring was probably not the main concern of the designers of this handgun.
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  36. That was the Cei-Rigotti.
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  37. A pretty good one, since no sober guy of other places managed to design a SMG before.
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  38. One of the reason for the intermediate cartridges was weight reduction. A rifle made to shoot the "reduced 7.62 NATO" must be able to shoot the full blown cartridge too, so no reduction in weight. The ammos will weight about the same (the weight of the powder is almost nothing) AND that would not have saved the logistical nightmare, since the rifles made for the reduced cartridge couldn't have shot the full blown one accurately (different sights required).
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  39. To know how a BAR in 7.35 Carcano could have been, it's enough to look at the Breda PG. Same setup (automatic rifle fed by a 20 rounds box magazine, shooting from an open bolt), same barrel lenght than the Colt Monitor, but weighting 2kg less.
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  40. They could have made the bore axis a little higher.
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  41. That's the safest place to put a decocker actually (since it rotates the firing pin out of the way of the hammer), and a SA/DA service gun NEED a decocker. The safety instead is usually required by the armed forces. The SP1 has a 1911/style safety simply because is simpler to manufacture.
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  42. For a water cooled MG, open or closed bolt is indifferent. The Browning 1917-1919 too fired from a closed bolt, and belts are no less exposed.
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  43. You have less internal volume for the same base diameter, so unnecessary big magazines of a shape that makes them less easy to storage and carry.
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  44. It pretty much worked very well. https://www.youtube.com/watch?v=vKx49JQ5Jt8
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  45. There were way worse. Type 11 for example and, as a LMG, the BAR was worse too.
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  46. It's because of the asault weapon ban and the fact that the production ended before it expired.
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  47. Several SA-DA pistols in DA pull the hammer back and release it right before it's engaged by the sear while, in SA actuate the sear. That contrasts with the Seecamp 1911 conversion, where the DA trigger completely rised the hammer and then hit the SA trigger.
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  48. Prvi Partizan ammos are .264 in diameter (even less sometimes) while the correct diameter would be .266-.267, so it's difficult to have a good accuracy with them, unless with later barrels in really pristine conditions. The brass is great however.
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  49. Err... no. As Ian said, those MGs at the start of the war were issued with 2 spare barrels. After the first battles it was noticed that those were not enough, and the provision had been enhanced to four. A barrel had to be changed after 200 rounds of continuous fire, so there was the real issue to fire more than 600 rounds with a single MG. Even three BAR would have had problems in doing the same thing in the same time. A proper LMG, even an unsatisfactory one, is anyway a completely different beast in respect to a rifle.
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  50.  @TrangleC  I did, thanks. Apart for the fact that the FG-42 had been in limited use only since 1943, the FG-42 has a not replaceable pencil barrel (it had been made to be lightweight), so its practical volume of fire is no different than that of a BAR.
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