If you want accuracy, ditch the Remington ammo. It just plain sucks. Federal isn't bad though. I have good luck with my CZ452 and American Eagle, (made by Federal), hp 38 grain. Using that combo I can shoot 1/2" groups at 50 yards pretty reliably. At about 65 yards the bullets go transonic and the accuracy begins to go downhill.
Wolf match gives even better results, especially if I'm shooting out to 100 yards, but at 60 yards or less the American Eagle does well enough that I don't notice the difference.