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To: Steely Tom
Yeah, OK, but I thought that the pressure in the breech had to go up to, I don't know, 5000 psi or something like that. Even a few thousandths would bleed off a significant piece of that. And the bullet has to be forced into the rifling, right?

A few thousandths above Mach 1 is a brick wall.

20 posted on 07/08/2007 7:37:10 AM PDT by Gorzaloon ("Being Fat, Stupid, and believing in Global Warming is no way to grow up, Son.")
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To: Gorzaloon
A few thousandths above Mach 1 is a brick wall.

Ahh. Yes. I forgot about that. The speed of sound.

Thanks, Gorzaloon.

24 posted on 07/08/2007 7:40:26 AM PDT by Steely Tom
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To: Gorzaloon

Magnums are supersonic. They are tough on the brass, though, which makes reloading somewhat limited.


26 posted on 07/08/2007 7:47:12 AM PDT by RightWhale (It's Brecht's donkey, not mine)
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