OP glad you got it figured out.


Quote Originally Posted by Scott Evans View Post
Been playing with 223 case based AI's for quite awhile, solution to fireform FTF's is to use a more sensitive thin cup primer (CCI 400, 6 1/2, WSR) for the fireform load, then switch to 7 1/2's/BR-4's/450's or other magnum high pressure capable primer. Problem solved 100%. NOT a headspace or pin protrusion issue. .035"-.040" pin protrusion and 100% reliable primer ignition.

Didn't matter, .100" pin protrusion, heavy bullet jam, tight chamber fit and a 7 1/2 or 450 would have a high rate of FTF's and what appeared to be light strikes.
I'll do that next time, sure wouldn't hurt. On my Lapua cases, they were obviously FUBAR from factory. Weatherby looking round shoulders, and the cases measured short using a comparator. I was a bit dissapointed for Expensive brass. It looks good now.