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Old 09-27-2012, 20:58   #2
M 7
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Join Date: May 2012
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Originally Posted by SCmasterblaster View Post
My carry load in my G17 is a 115gr bullet doing 1400 FPS. The bullet has a low sectional density and ballistic coefficient, so I wonder about how it will do trying to penetrate through several inches of heavy clothing. I am thinking of changing over to a 147gr JHP in the upcoming cold VT winter. Do I underestimate the fast 115gr JHP bullet?

I think that you are.

Heavy clothing lacks the tensile strength to stop a bullet. It may clog the expansion cavity of a jacketed hollow point bullet, but the JHP will then behave as a FMJ producing even more penetration than if it hadn't been clogged.

This PDF contains a clothing penetration model that may be of interest to you-

Check it out.
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