I've utilized BR-2's in 7mm rem mags with good results, even in chilly temps. But, that was with quite superior case fill of H1000 and Reloder 26, and Actually I choose to use mag primers, they may have not been detrimental to receiving reliable velocities, so it will take away https://z-ndh-tchen-cci-br225789.rimmablog.com/30931359/an-unbiased-view-of-cci-250-large-rifle-magnum-primers