between brass marked 5.56 with NATO cross and those marked .223Rem?
Normally any 5.5.6 is thicker and made for Semi & Full-Auto cycling, commercial is lighter and thinner.
My question come from a 21" T/C Contender barrel that I use to pop some suspect primers, I chambered a mil-spec case and after firing the
case was stiff to remove and put a "bow"[temporarily] in the extractor, as it tried to push the case out.
I relieved the strain and popped the case out using a 1/8" diameter rod.
Am getting a spare replacement extractor but just want to get a weight to reference if the case in uncertain.
I think PMC uses the same case for mil=spec and commercial, true or false.
Thanks!
CAN'T WAIT for NOON!!!!