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" Blueskies" <nospamblueskies@ameritech1.net> wrote in message
news:NrLTe.30$IH4.25@newssvr31.news.prodigy.com...
> But just imagine, as the bullet falls to earth, it will remain horizontal
> for a while due to the gyroscopic spin caused by the rifling...
Quite a while, actually. If you fire it straight up, it will likely land on
it's butt - still spinning. Ever done the math to figure the rpm of a .45
ACP? The twist of the barrel IIRC, is one turn in 9 inches. If it's
traveling at 820 fps at the muzzle, that is 1093 nine inch increments per
second or 65,580 rpm. No wonder the gun twists in your hand during recoil.
Rich S.
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Re: Physics question
