I put True Oil on a military Mauser 16 years ago and it still looks great. One thing though, if it is your first time don't make the mistake I did of carefully going over the stock with fine steel wool and then only air blowing the steel burrs off -- take 'em off with a tack-cloth or something! There is nothing more frustrating than seeing little bits (I mean really little -- they're too small to see but show up after the oil is applied) of steel wool stuck in your new finish.