I use Birchwood Casey Tru Oil cut with mineral spirits on anywhere from a 3 or 5 to i basis (mineral oil/Tru Oil) rubbed in with Armor All in the palm of the hand. Do 15-20 coats and then rub the sheen off with 0000 steel wool. (The higher the ratio of mineral oil to Tru Oil, the less the shine on the stock.)
Jordan