I have try to shoot cast in the DPMS LR308 . The problem is from the recoil the boolits move and mess up on the feed . yes I put a crimp on them , I had talked with a gunsmith about it, he said there is others that have that problem and then stay with jacket bullets . Dose anyone have any idea of how to not have the bullets move like they do ? I have no problem with jackets. I know that bullet design matters . other then that .