I picked up a couple rounds of Wolf .223 that some previous shooter had dropped on the ground at the range, awhile back. My original plan was to pull them down and reuse the bullets, but they didn't look tampered with, so this morning I shot them in my Stevens 200.
Looking into the cases, I noticed that they are Boxer primed. So just for the heck of it I ran them through my collet die, reprimed with CCI 400s, dropped in 6.4 grains of NM-04 (Chinese PB clone) and a 225415 with gascheck. Shot fine, just like the same load in a brass case.