Iam loading ,for me a large batch of brass. Prepping around 1000 rounds of mixed brass. How many times are you firing them? Using two different ar’s With below max loads With 55 gr fmj’s. And 69 gr sierras.I know the primer pockets will usually get loose First. Iam going to try h 322 and h 335 this time instead of the Other loads I have tried. So what is the round count of how many times fired when you throw away your brass?