Colonel, mine is the same, just modified to use with a standard pocket calculator. Plugging your 115 grain 9mm at 1145 into mine I come up with 334.7 FPE. This way you don't have to break down the velocity to a managable size. also, for all practical purposes, .2 FPE is a non-existant problem. It's just a faster way to do it, unless you're a Math-Junkie who enjoys the minutia.
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Last edited by Dave Waits; 04-15-2014 at 02:17 PM.
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