View Single Post
  #78  
Old 12-06-2018, 04:06 PM
Kurt505 Kurt505 is offline
Banned
 
Join Date: May 2009
Location: Communist state
Posts: 13,245
Default

Quote:
Originally Posted by AndrewM View Post
Should be obvious that this claim "Same penetration, .252/.253 sd’s" is obviously not correct.
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.