Federal primer cups are soft. I do not know if it tends to make any variance in handguns, but they are not proposed to be used in the Garand. "Although there may be some small discrepancies in technical specs for your Uncooked brass from one particular maker to one other, https://federal-ar-primers94026.blogsuperapp.com/32356336/not-known-factual-statements-about-federal-215-primers-100-count