I developed a nice cast boolit load for my .250 Sav Mdl 16 Savage, and it uses a Winchester primer marked WLR, but the box says"for use in standard or magnum rifle loads". Now Winchester has a primer marked WLR for standard loads and another large rifle primer marked WLRM and the box denote for magnum rifle loads. Has anybody run a test to see if the "new" WLR is different than the old WLR?
thanks,
Shuz