I have run a few hundred thru my M1A, factory and reloads. I know what to expect from my bolt rifles, but have no experience with the gas guy. I have been shooting at 100 yds as that is what is available. My M1A is National Match 1 in 11 twist. What kind of M.O.A. should I be striving for with my reloads. I have been reloading for 35+ years and have seen the formulas for various .308 loads on the forum, but not too many results, especially for semi auto. Not looking for reloading info, holes on paper info, out to 600 yds if possible. Thanks!