Just traded into a M1A1, and wondering what everyones similar rifle shoots the best. This rifle has had about 200 rounds, all factory thru it. It has the Springfield heavy duty scope mount, with Millett steel 30mm rings, and a Weaver Grand Slam 8-32x44 with German type crosshairs, with lighted reticle. I got 3 boxes of ammo with it, and shooting some white box Winchester is shooting under MOA, all the time I have had to shoot it, at 100yds. Also was wondering if the small primer brass shoots any better than large rifle. Also has anyone shot the 147 pulled bullets you see advertised often? My old go to load was a near max load of Win. 748 and a boat tailed 150 soft point. All replies appreciated!