RE: "Accurizing" a new gun to shoot tighter??
I'll give you my accurizing package as an example fo the more common things you can do to improve accuracy.
hand lap bolt lugs,cocking ramp(notch),hand lap bore,glass or pillar bed,free float and/or pressure bed,lap scope rings and loc-tite bases,work up load. I have NEVER done this to a factory rifle that accuracy wasn't dramatically improved upon!