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Old 02-27-2007 | 04:45 PM
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Pglasgow
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Default RE: On the ability of the 295 PB to penetrate

ORIGINAL: oldrookie

Pglasgow, does this chart change much with aero points?
oldrookie,

The aero-tip increases the ballistics co-effiencient. The manufacturer claims the 295 hp has a BC of .168. This may be true, but I doubt it. I generally reduce the BC by .02, thus you will notice I used a BC of .150 in the charts I posted. According to the manufacturer, the aero-tip adds about .02 to the BC. So basically I'd use .168 as the B.C. The effect is to increase down range velocity and energy. See below.

Now the tricky part. Does the aerotip slow down expansion? Maybe the aerotip will work fine at those velocities. All my analysis stems from field reports of the 295 hollowpoint.



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