I have a 1in11 twist Wilson match barrel in my M1A, I have read that the A2460 powder is useable for this rifle, has anybody tried it? and with what bullet weights? and powder charges? I loaded 41gns for my bolt gun, with 175gn SMK's @ a velocity of 2650 to 2680fps, which was a tic fast for me, I prefer to keep the 175gn SMK's from my bolt gun @2550ish, I also have A2495 powder to try, IUOP which if not both, where should I start?