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  1. Ballistics - Internal and External
    I was reading my Lyman 50th edition today looking for guidance on loading .223 Remington with the military SS109 62 grain bullets, WW748 powder, and AR primers like Federal Premium AR Match. So Lyman says they tested with both a Universal Receiver, 24", 1 in 12 twist, & a Colt AR15 w/20" barrel...
  2. Ballistics - Internal and External
    Hi, Question (a repeat from my intro in General): How do you mount a chamber pressure strain gauge over the center of the chamber of a Contender? To try to stay away from the barrel cross section changes of the barrel locking lug, on top of the barrel seems to be the ideal. BUT, over the...
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