Prolonged decades ago I went to the usage of CCI primers from the magnum selection. The only real exception is CCI bench relaxation primers for that 204 Ruger. Consequently I have only one large rifle primer, one small rifle primer and only large and small magnum pistol primers to stock. https://federal-primers-ammunitio60381.wizzardsblog.com/31804824/federal-large-rifle-match-primers-options