I have an unissued, all match #s, mosin 38, that is , .....dare i say it.... moa. thats right M.O.A.! Now i will go one step further, it will do this with 3 diff mfgrs, and multiple dif weights! Please don't hurt me. it will do it with czech milsurp stuff, wolf in 150, 185 and 205's, and silver bear, and a couple other brands. I really dont know what to tell you, I normally would say to check the normal things you do on a rifle. make sure all scews are tight, make sure your "free float" doesnt change or the sticking points shift, after you heat her up. check the muzzle , check the bore. check the action screws, you know the usual suspects.