He had a lot of Federal large mag pistol primers and also the store owner informed me that Federal primers were being superior because they would usually go bang since they are softer than other primers. I have not had a challenge with CCI, but I bought one thousand Federals. https://winchesterlargerifleprime84938.worldblogged.com/37796316/not-known-factual-statements-about-federal-ar-match-primers