Bed your rifle's action to the stock. The first thing you do to a new rifle is read & understand the owners manual, CLEAN the rifle, be sure all screws are tite but not stupid tite, then bed the action & free-float the barrel, adjust trigger,[one of biggest problems to an inexperianced shooter is trigger control & consistancy], & RELOAD!
1.5 to 2" groups is not very good with that rifle. What you do have going for you is that it is consistant.
SAVE your brass. Get a good reloading manual, Hornady, Sierra, Nosler etc. & READ & UNDERSTAND it. This is not a chore. It is an obsession. Do not get discouraged. Get your starting loads from a manual & not from someone on the internet.
Personaly, I shoot a lot off a bi-pod but its hard to beat a good bench & a rock steady rest.
Practice, practice, practice & practice some more. You will never be satisfied nor should you.
If you insist on a new stock, go to 'stockadegunstocks.com' & check 'em out. Be safe!