Thread: .38 +P can equal? 9 mm
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Old 06-25-2018, 02:35 AM
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Quote:
Originally Posted by TomkinsSP View Post
Only true if cases are same size. Its pounds per SQUARE INCH. Put a 110 grain bullet in a .38 case and in a 9x19 case you have close to 2.5x usable volume with the Special case. Choose your powder well and you can get greater velocity from the Special (17k not 20k +p) than the Parabellum.
While that may sound correct pressure is pressure and we are talking about internal ballistics, not the effect on the case surface.
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