Quote:
Originally Posted by AndrewM
Should be obvious that this claim "Same penetration, .252/.253 sd’s" is obviously not correct.
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To be honest, a lot of these formulas are way above my pay grade, the rule of thumb I’ve grown to live by is 1000ft/lbs of energy and 1500fps or 600yds, whichever comes first is my limit, the means of getting there doesn’t change my numbers.