I Got a new shotgun and didnt like the finish on it. Pretty cheap gun and it looked very plasticky. I sanded it all off and just used boiled linseed oil, its what I use on all my wood handled tools. The furniture is walnut, or so the manufacture says. The for grip turned an extremely dark color while the butt stayed light. First i dont know what I did to make such a difference in color and what can I do to darken the butt stock up that will let me continue to use BLO in the field?