I'd try different rings and scope as the 1st go around. My wife has a similar model 11 in 7-08 and it typically shoots 1.5 to 2 inch groups with cheap 140gr Winchester ammo; however, reloading with 140gr Barnes TSX over 48gr of Win760 produces sub 1/2 MOA on a regular basis, but the barrel does warm up pretty easily. Also make sure the flimsy Tupperware stock is not touching the barrel anywhere.