I've used BR-two's in 7mm rem mags with achievements, even in chilly temps. But, that was with pretty higher scenario fill of H1000 and Reloder 26, and honestly I choose to use mag primers, they've not been detrimental to getting regular velocities, so it will take away any get worried https://zndhtchencci50084848.blogspothub.com/30882927/cci-br4-can-be-fun-for-anyone