Hey thanks for the responses guys. What set my question off was a post by someone (I need to go back and try and find it) who listed a receipy for what I thought was a .223 in which they listed also listed using a 210 Federal primer. Now being relatively new to reloading and usually using CCI primers, I was at a loss of how that combo would possibly work in that caliber. Now I guess it is possible I was thinking .223 and it was actually 22-250 which I also follow very closely. But thanks nonetheless for the responses.