I've employed BR-2's in 7mm rem mags with good results, even in cold temps. But, that was with rather superior case fill of H1000 and Reloder 26, and Truthfully I prefer to use mag primers, they've got not been harmful to receiving reliable velocities, so it requires away any worry https://elliottwjwhr.life3dblog.com/30709045/vectan-a0-can-be-fun-for-anyone