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

  1.  @treyriver5676  They are obviously different bullets, one is spitzer and one is round nose. But they had been made to be used in the same barrels. The Spitzer has actually the diameter of the grooves of the barrel of the Gew 88 post 1894 (and the Mauser Gew 98). The diameter of the lands of the barrel of the Gew 88, in 1894, had been enlarged from the original .319 (the diameter of the bullet) to .323 because the long, round nose, bullet had a long bearing surface and a lot of material to displace to sit into the rifling, so it caused pressure spikes that "bulged" the barrel. The spitzer, due to the reduced bearing surface, didn't need the difference, but the barrels had been enlarged, for the round nose bullet, ten years before, so it had been made of the diameter of the lands of the "new" barrels. .323. The larger bullet needed a larger neck of the case, and so a larger cut in the chamber. But it was far easier to rebore the neck of the chambers than to replace the barrels. From the shoulder on the case is the same. Infact the Germans didnt' want to change ammo, they wanted a spitzer.
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  2. The barrel and the gas tube expand differently while heating. That means that the gas tube "forces" the barrel upward or downward, changing the harmonics in respect to a cold shot. It's like firing with, or without, a weight attached to the muzzle.
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  3. It's a false problem infact. None noticed rattling barrels (or front sight on the barel shroud for that matter) being a problem in over 70 years of use of the MG42-MG3. When the round is fired, the expansion of the brass tightens all the parts.
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  4. It’s rather questionable if an opening half way through the barrel, from where the spilled gas has to fill a relatively large space (like in the first pistol shown) can really act to delay the opening of the action until pressure drops to safe level. Probably it acts just like a buffer, preventing the slide to slam into the frame at a speed dangerous for the integrity of the gun (and detrimental for the comfort of the shooter), while the action is largely a pure blowback.
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  5. At that time it was a REAL PROBLEM to manufacture a magazine that was enough well and consistently built to not have feeding issues and cheap enough to be discarded on the field. That's why still post-war battle rifles like the M14 and Canadian FAL were intended to be fed primarily with stripper clips.
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  6. Ballistically it's very similar to the .30-30.
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  7. It's probably the diameter of the bullet, like the .32 ACP/7.65mm Browning has a 7.94mm diameter bullet.
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  8. No bolt action rifle, and very few semiauto rifles, until that moment were meant to be "taken apart" in the field. The parts that required manteinance were easily field stripped (of every bolt action rifle, you can dismantle the bolt assembly from the receiver in seconds), but the receiver and the trigger group were not meant to be often removed from the stock. This is the philosophy of this rifle. The parts that had to be seviced (gas ports and bolt assembly), or that more often needed to be replaced (statistically, the recoil spring and the firing pin) can be taken apart in seconds and without tools. The M1 Garand instead is made with an opposite philosophy. It's easily disassemblable, but not really field strippable. To remove the bolt from the receiver, you have to take all the rifle apart.
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  9. The two lugs are plenty strong for the cartridge (they will be enough even for much more powerful cartridges). In case of failure, the handle prevents the bolt to hit the shooter anyway while at the same time making clear that something bad happened AND not requiring a further unnecessary precision machining.
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  10.  Dock None  Err... No. Despite the Italian Partisans being communists for more than 2/3, the CLNAI was managed on strictly equal basis by the four major groups (Communists, Socialists, Catholics and the Partito d'Azione), since the objective was to get rid of the fascists and the Germans.
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  11. The MP40 hope to be the FNAB43
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  12. The Schmidt-Rubin has nothing to do with Mauser. ;)
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  13. 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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  14. And 9mm Glisenti, and before the 9mm Browning Long. Energy-wise they are all ain the same ballpark, "the most powerful 9mm ammo that can be shoot in a blowback handgun without weight disadvantages".
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  15.  @atomicsmith  To accelerate a mass at double the speed in the same time you don't need double the energy, but four times the energy. To triple the speed you need nine times the energy.
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  16.  @atomicsmith  Sorry, but 7lb bolt / 3 (leverage factor) / 3 (reduction factor based on other calibers, since 10 ounces compared to 1.7 lbs and 12 ounces compared to 2.3 lbs are about 1/3. Let's ignore the fact that the results of the formula are increasingly off as the power of the rounds increase) is 0.78 pounds, not 1.45. You have also to subtract from the 7lbs the weight of the bolt and the weight of the delaying lever (that on average moves at the same pace of the bolt), but let's ignore that too for now. Do you think the bolt carrier on a FAMAS PLUS THE RECOIL SPRING TUBE AND CHARGING LEVER (that recoil with the bolt carrier, also half the weight of the recoil spring contained in the tube should be counted)) has a weight so much different than 0.78 pounds? I should say it's a bit more.
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  17. Malfunctions happened on fairly old guns with worn-out springs, are not indicative of the performance of the weapon at the time.
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  18. Absolutely not.
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  19. .357 SIG deserved a mention before oblivion.
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  20. It was adopted and widely used. Actually this is a simple action even by modern standards. In WWI, only the Hotchkiss was simpler than this.
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  21. Sectional density. Since the new smokeless powders allowed the bullets to remain lethal at long ranges, it was believed that long range shoots would have became very important in combat. The high sectional density of those bullets makes so that their trajectory is more stable, and that they deliver a lot of energy even at 2000m range.
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  22. Since it tends to extract the brass under pressure and usually is coupled with chamber fluting, there is a lot of dirt that comes from the barrel to the bolt. That worsen with a suppressor (suppressors usually keep the pressure in the barrel higher, and suppressed firearms always run dirtier than unsuppressed ones).
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  23.  @Seb-Storm  Not really blasts. Nothing you can see. But there are abundant leaks of carbon particles from the barrel to the chamber-bolt area.
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  24. It’s incredible this had been proposed in the ’50s. You expect a contraption like that to have been proposed in late 19th / early 20th century (apart for the stamped steel receiver). Considering already the Mannlicher 1885 had an accelerator, and so the patents on way simpler and sturdier accelerator designs had long expired, there was no need to make it so complex. Not to say of the open bolt design, that was already a not so great idea in the 1932 Scotti Mod.X (and it was 1932), but the Scotti at least had a pretty lightweight bolt!
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  25. Look at 17:50 On the side of the bolt where there is a pin. those large parts on the side of the bolt, and the triangular shaped fin over he bolt, are the locking lugs. When the bolt rises, they enters into corespondent recesses into the receiver.
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  26. Surfaces are very simple (simpler than those of a M1 Carbine). Pieces were forged and then only machine-finished to the right dimension, that's not really expensive. Add that the entire trigger group on the M1 Carbine is machined, while this is stamped.
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  27. It's practically identical.
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  28. The goal was exactly to not have a detachable magazine, cause detachable magazines often had feeding issues, cause it was not easy to design a magazine that was so cheap to be discarded on the field, and so consistently built to not have feeding troubles. The Brits too designed a tilting magazine for the BREN (they didn't adopt it in the end, but it was even more awkward than that of the Breda).
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  29. The P018 was a very good design, but it took ideas, other than from the Hi-Power, from the CZ75, the Beretta 92 series and the SIG P220. It's not possible to think it could came out before 1982, when it did. The real shame had been for the evolution P.One. In today's market it would have probably sold well exactly thanks to the mix of classical features (all-forged-steel construction of frame and slide, 1911 style safety...) and modern ones (DA/SA "wondernine" with a decocker function, like the modern day CZ and Taurus, front serrations...). But it came out in the worst possible moment for an all-steel handgun.
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  30. 1) For what's the use of handguns in battlefield, to cut the weight can easily save more of your soldiers' lives than to have a more powerful caliber. 2) in a total war like WWII, workers and tools are needed to manufacture more useful tnings than complex handguns, so a simple blowback can, again, save more of your soldiers' lives than a complex breechlock.
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  31. Actually this is a simple action even by modern standards. In WWI, only the Hotchkiss was simpler than this.
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  32. Three versions of the Hi-Power were submitted to the early trials and XM9 trials. None survived the first phase of the tests.
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  33.    The FN Hi-Power BDA, one of those submitted to the XM9 program, was double action.
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  34. beretta slides are not likely to crack.
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  35. Their actions are not even close to be similar.
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  36. Italian.
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  37. Add that the optic on the dust cover eliminates any pretense of accuracy. That thing is just not solid enough (not by chance the sights on the original AK are NOT attached to the dust cover).
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  38. Much more pieces. Too complicated for a pistol.
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  39. Any bolt action of that era had a rear sight adjustable up to similar ranges. The M38 was the exception.
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  40. The shotguns rented by Argentine outfitters for dove hunting shoot on average 1250 rounds a day, so they can easily see who's the more cost-efficient. Their lineup is almost entirely made of Beretta and Benelli.
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  41. in typical loads, it's slightly more powerful than 9mm Parabellum, but, due to the larger case, it obtains those performances with less pressure, so it's less punitive for the action.
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  42.  @ozfifer7392  For example, the class under 2200 joules can be defined "Lightweight Rifle Cartridges", or LRC. The 2200-3000 joules class "Medium rifle cartridges", or MRC. The over 3000 joules class "Full Power Rifle Cartridges" or FPRC. There are already definitions for the infantry rifles that use the first and last class of ammo (Assault rifle and Battle rifle), we only need a term for the rifles that uses the MRC, for example "Squad Rifle" (that doesn't make less sense than the other two definitions).
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  43.  @EnjoyCocaColaLight  It's unsuited for individual automatic fire.
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  44. Portugese.
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  45. He actually inaugurated the tradition of filing for bankrupcy.
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  46. They didn't in the middle, but in 1938. Then the war begun (in June 1940 for italy) and they decided to scrap all the 7.35 thing and fight it only with 6.5.
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  47. It's a linear hammer infact. A striker is spring loaded and direcly hit the primer.
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  48. This MG has very few parts actually, even by modern standards. They are big. Like any industrial tool design of the time. In WWI only the Hotchkiss was simpler.
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  49.  @lairdcummings9092  It's simply the way to have a 50 rounds magazine in an era when a simply staggered 50 rounds magazine would have been unreliable.
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  50.  @lairdcummings9092  Canvas belts (the only available in WWI) became obsolete, magazines didn't. Actually canvas belts are EXACTLY the reason why this MG is way simpler than any WWI belt-fed one since, using a canvas belt, the weapon has to extract the cartridge form the belt rearward, then move it up or down, out of the way of the belt, then push it into the chamber (Rube Goldberg design). The Madsen magazine never held 50 rounds.
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