mine shoots pretty good with the 120 gr nosler ballistic tip with 45.5 gr varget (MAX). that is my low recoil round for my wife to shoot and hunt with. ( thats what im thinking you built this for if the wife is shooting too.) mine also likes the 130 sierra matching with 43.5gr varget. i am currently waiting for midway to send me some 140 gr BERGER VLD. those are going to increase my max effective range to right at like 550 for white tail. mine has an 18 in barrel from sss. and a wood stock.