You'll need to be more specific. What information do you need? In general you'll need a good scope, rings and base. Unless you reload, you may want to stock up on Federal Gold Medal Match ammo as well.
If it has the factory stock on it, I'd be looking for an upgrade there. A Timney trigger would also be good money spent. I have the same gun. I put a McMillan HTG stock on it, HS Precision DBM and Timney 510 in it and it's much more consistent now.