I have employed BR-2's in 7mm rem mags with achievement, even in cold temps. But, that was with fairly substantial case fill of H1000 and Reloder 26, and Actually I prefer to use mag primers, they have not been detrimental to getting constant velocities, so it requires away any fear https://z-ndh-tchen-cci-500-small95060.blogsvirals.com/30901761/federal-215-gold-medal-zündhütchen-large-rifle-magnum-can-be-fun-for-anyone