I've used BR-2's in 7mm rem mags with accomplishment, even in cold temps. But, which was with pretty high scenario fill of H1000 and Reloder 26, and Actually I choose to use mag primers, they've not been harmful to having steady velocities, so it takes away any fear of getting https://devintxxrb.blogproducer.com/38286418/the-best-side-of-federal-210-large-rifle-zündhütchen