He had lots of Federal large mag pistol primers as well as the store owner instructed me that Federal primers were greater because they would normally go bang as they are softer than other primers. I haven't experienced a challenge with CCI, but I purchased 1000 Federals. Insert to quotation https://winchester-primers-in-sto98429.vblogetin.com/37489039/the-ultimate-guide-to-federal-large-pistol-primers-no-150