Amaros -> RE: The US and guns (10/20/2006 7:39:20 AM)
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I stand corrected on the calibers, .223, and &.7.62, it's an interest, not a fetish for me. Most rounds fall into the .22, .38, or .45 range. The .44 test I performed myself with a Teledyne Auto Mag - prone to jamming, unfortunately. Both rounds were unjacketed wadcutters, so projectile design wasn't an issue. True, bullet design will make a notable difference in penetration, a hollow point will penetrate less than fully jacketed ball ammo, since it will flatten out on impact. I've also thouroghly tested the deflection theory, and I prefer to hunt in dense brush with a .44 Smith, which is a different set of conditions that most firefights. I've also seen .223 rifle bullets deflect, while a .44 rifle round plowed right through with greater accuracy - definitely could be that some of this might be due to the difference in projectile shape, i.e., cone v.s. wadcutter. When it comes to flesh, a .44 penetrates just fine, particularly at close range. A smaller, higher volocity round like a 9mm will penetrate and then some, as Shreveport points out. Recoil, as far as I know has nothing to do with it, except perhaps as indicitive of the physics of a particular round in a particular weapon. The 5.45 round has better accuracy at greater range, which is probobly why they switched, the slower, heavier slug will drop faster, and isn't very accurate at much more than a hundred yards or so. Probobly for similar reasons the US went with a spalling round on the M-16 - turned out most soldiers weren't actually aiming, just pointing shooting, hence accuracy was wasted - for the Soviets, they probobly figured out that their toops were more effective firing from a greater distance. There is some controversy over the question of "stopping power", i.e., penetration v.s. hydrostatic shock - but most anecdotal evidence suggests that larger slug drop's 'em faster, with a trade off in terms of range and recoil, which can affect second shot accuracy, depending on the weapon.
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