I was loading some 223 Rem of mixed brass. I kept getting some that the primer would not go in. I checked the brass and it is PMC Bronze. I have a whole bunch of it. Is there anyway to enlarge the primer hole so either CCI or Win primers will fit? It seems to have a extra ring or bevel inside the hole. How were these primed orginally?. It is not military brass. Its made in Korea.
Shown here in picture
MC on left, Rem on right
Shown here in picture

