Ah, got it, cci primers been around a long time, I had not heard of federal making a military type primer for sale to the public.
Been using 41s since they came out.
Tyrone says the 62s are junk. I've not loaded them, but I knew a guy that bought em in big bulk years ago, on a tight budget and did a bit of weight sorting and says he usually managed 10 shot groups at 200 that were MOA or just a bit over. FWIW.
I've not had good enough luck with 55 fmjs, though some of the new ones might be ok...