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Old 03-05-2013, 07:58 PM
Delos Delos is offline
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Join Date: Dec 2012
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Default wrong again

Quote:
Originally Posted by Neumann View Post
A .38 SPL produces about 200 ft-lb muzzle energy from a 6" barrel, compared to 9x19mm, which produces approximately 400 ft-lb from a 4" barrel. .40 S&W and .45 ACP are in the same ball park as 9 mm.

Plain vanilla .38 SPL packs a real wallop of recoil in a 15 oz revolver because there's no action to spread out the momentum. The recoil of a pistol is spread out over about 1/10 second as the slide flies back, which reduces the felt recoil significantly.
Do it again. This time use +P 38 special (That every steel frame has always used) and the same bullet weight for each caliber.

Many years ago there were articles that argued with Jeff Cooper claiming the 9mm is/was better than the 45 auto. The kinetic energy formula always gives the fastest bullet the edge because the velocity is squared. Somehow it never works out in the real world. Several years back the police who raid drug labs claimed the 40 cal works a lot better on pitbull dogs. They started a trend. The 45 cal is legendary. A person could be creative and make an aluminum core 45 caliber bullet at 125 grain weight, but you would fine it lacking.

I have heard of people who went Bear Hunting in Alaska with the AR15 military round when it was new. Didn’t work out well.
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