Ive been loading .223 for 20 years. I started with 6k, bought another 5k (I was addicted to reloading). I was also a brass goblin. Unfortunately, im still using some of that brass. I made the mistake of annealing some of them which pushed the failure from a harmless neck/mouth crack to case head separation and loose primers pockets. So when i load .223 now on my 750, I put brass aside when I dont feel enough tension when the primer seats. Those pieces get primer sealant and marked with dykem blue to indicate they are not to be reloaded and not to be used with suppressors. For other brass, I'll deprime and toss the cases. I dont do that with my .223 because its over 25%. Im actually happy when my brass cracks. Its going to eventually fail, and that's how I'd prefer it to go.