I used to use acetone but was told by Brad Bachelder after a year or so the oil down in the stock will come back to the surface. He uses some sort of hot [ I believe around 250 degrees- not sure ] box with some kind chemical- he didn't say what. He said the fumes were dangerous to breath and he had to be very careful. Anyways, I gave him a gun with 15 lb. triggers to lighten and to remove the oil in the stock. Hope to have it back soon. Paul