Very long yrs ago I went to the use of CCI primers on the magnum wide range. The sole exception is CCI bench relaxation primers with the 204 Ruger. Therefore I've only one large rifle primer, one small rifle primer and only large and small magnum pistol primers to stock. https://winchesterprimersinstockf68903.blogzag.com/75896695/the-basic-principles-of-federal-large-rifle-benchrest-primers