I attempted it on my new Winchesteer brass and just broke the sharp edge of the primer pocket, "difficulty" vanished. For an example of why, load a Reside round within your AR from your mag, and carry it or go it all over for the little bit. But he buys https://federalprimersfor9mm11156.look4blog.com/70502464/5-easy-facts-about-federal-gm150m-primers-described