Does it not shoot very well at this point? If not, how bad is it doing.
I would find it difficult to believe that the rifle as from the factory, with a little load workup, wouldn't be sufficiently accurate for LRH?
The first money I'd consider spending on it would be a muzzle brake
unless you are using lower end loads such as 225gr bullets. I shoot nothing but 300gr SMKs in mine and really appreciate the brake. In fact it was a necessity for me (a real wimp:o) even with 225s and 250s. It didn't affect accuracy one way of the other but sure made my life more enjoyable.;)