Couple years back, (when the shelves were full again after the last election) I bought bunch of powder & primers at Sportsmans. Now, everybody has their preferred primers for each caliber. I use Fed 215's, 210's and CCI 41's more than anything and have over 10K of them so I feel my grandkids will still be eating moose & caribou long after I've left this earth. But when I did buy those supplies, they mainly had CCI primers on the shelf and I bought a bunch; I picked up the 210's and 41's the following summer. So, I have like 14K total CCI 400 & 450 small rifle and CCI 200 & 250 large rifle primers in my stash and wonder what to use them for; since I mainly use the 215,210, and 41's. Figured I'd trade them or use them eventually. Those CCI 400, 450, 200, and 250, are they standard small & large rifle primers or are they less desireable for whatever reason? Everybody I talk to uses the 210, 215, and 41's.