He had a good amount of Federal large mag pistol primers plus the store owner explained to me that Federal primers have been much better because they would normally go bang given that they are softer than other primers. I have never experienced a problem with CCI, but I bought https://winchesterlargepistolprim68901.amoblog.com/the-5-second-trick-for-federal-215m-primers-in-stock-53815063