Hello,
I have a BCM AR with a Rainier 18” barrel. I was loading 24.0g of N540 with 75g Hornady BTHP at 1.847 CBTOG with CCI primers, and it was great. Due to some unrelated light primer strike issues I switched out the bolt and BCG, and all of a sudden I’m getting signs of over pressure on the primers. Can switching the BCG cause that? It’s also getting warmer in PA, but I think N540 is supposed to pretty temp stable. Any thoughts would be appreciated! Thanks.
I have a BCM AR with a Rainier 18” barrel. I was loading 24.0g of N540 with 75g Hornady BTHP at 1.847 CBTOG with CCI primers, and it was great. Due to some unrelated light primer strike issues I switched out the bolt and BCG, and all of a sudden I’m getting signs of over pressure on the primers. Can switching the BCG cause that? It’s also getting warmer in PA, but I think N540 is supposed to pretty temp stable. Any thoughts would be appreciated! Thanks.
