Extensive many years in the past I went to using CCI primers with the magnum variety. The one exception is CCI bench relaxation primers for that 204 Ruger. So I have just one large rifle primer, one small rifle primer and only large and small magnum pistol primers to stock. https://caidenigbmp.blogs-service.com/62871838/the-definitive-guide-to-federal-large-rifle-magnum-primers-215