I've got the same rifle and found that factory ammo, mine really liked remmington premier accutip 140grs. However, I started reloading and found that it seems to like 150gr Nosler ballistic tips. It also shoots AMAX 162gr very well also. I've got sub .5" groups at 100yds with both rounds, however, my rifle is not stock. The barrelled action is factory, but the stock has been replaced and bedded. I have also adjusted the factory trigger to just under 2lbs, added a bolt lift kit, and a tactical bolt knob. Alot of this stuff you can do in your spare time with minimal dollars or experience. If that's not an option, take your bolt apart and send/post some pics. I'll see what it is and see if I can make you a lift kit. This will help in the cycling of your action and being able to stay/get back on target faster and easier. Best thing you can do is find an aftermarket stock, then bedded the action (or have it done). Get good optics for it, because you can reach WAY out there with that rifle.