I would like advice for M1A loads using these Bullets: 100 Grain Lapua Cutting Edge HP, Sierra's 180 gr # 2160 and 200 gr #2165. The Powders I have in Bulk are Accurate 2230C (not a misprint. Burn rate is next to 748 and is a Double Based Powder) and IMR-4895. That's my main need. However, I am...