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Old August 1, 2011, 10:41 AM   #11
griz
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Join Date: July 31, 2000
Location: Middle Peninsula, VA
Posts: 1,439
If you reduce case capacity, the same amount of powder will give more pressure and velocity (and maybe penetration depending on a lot of things). Even deep seating a bullet will measurably change the pressure in a handgun round.

So comparing a short auto case to a long revolver case is not going to tell you much.
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