You can use Hoppes gun cleaning solvent to remove any grease and grime from the wood. Once that is done, start applying light coats of raw linseed oilicon, letting each coat soak in and rehydrate the wood. It should be good to go after 7 or 8 hand-rubbed coats. Please remember that once the wood is rehydrated, it will fit differently when you reinstall the barrel and receiver since the wood will expand slightly. Raw linseed oilicon is what was used on your rifle at the factory when it was first built. Hope that helps!