I bought 1K for 45 Colt and experienced the "challenge". Was pretty much to give up on them, and skim a put up about utilizing a deburr tool to get rid of armed forces crimps on rifle brass. I understand that way too. My forty yr old daughter wasn't born https://winchesterprimersforsalei02345.blogpayz.com/31896913/everything-about-federal-primers-small-pistol