I have acquired over 1,000 pieces of .223 Federal FC brass. I know that, in general, FC brass isn't highly thought of but I haven't had any problem with it in .40 or 9mm. Here, I'm interested specifically in .223. I've seen scattered comments where some say they only reload it once, some say they won't reload it, and some seem happy with it. My impression is that the most common issue is primer pockets becoming loose. So I could use your guidance. What do you with this brass in this caliber? Right now, mine is sorted and kept separate from what I'm currently using.