What are you shooting a .243 or a 6mm ? That will help...........Harold
From the Speer#10 manual Win brass...80gr data...use mag primers with this powder........win760/41gr/2958fps 43gr/3095fps 45gr/3233fps
IMR 4831....80gr data........standard primer.........44gr/3086fps 46gr/3205fps 48gr/3344fps




























