Hello all. I've been lurking on the hide for 6 months+ but this is my first post. I've picked up a wealth of knowledge regarding precision shooting that has lent to sharpened skills and new interests. Having recently gotten into reloading for my .308 remmy 5R, a question arises. I was given a box of CCI 200 primers that are 1978 vintage. Are they usable or best suited for the trash? Forgive me if this topic has been covered. I have not run acrossed it and the search fuction netted no results.