I have a factory stock that is stained walnut I guess, on a Ruger 10/22 standard model, I sanded the stock to remove the major coating and stain but some stain remain in the pores that is hard to get rid of, any help?

Thanks in advance.

You can try the solvent approach, either wiping it with acetone or soaking it with a stripper then wiping it, but if the stain is in there good about the only thing that works is sanding it all off.

Pyrotek,
I have seen a new paint removal product(its a green water-based paste, can't remember the name though) advertised on cable television here in the USA. It actually removes paint from wood pores. If I see it again I will post it.

I have re-finished a few stocks and have had good luck using a weapons cleaning brush and liquid stripper. For stubborn spots I used a brass bristle brush. When finished, you will have to re-fill the pores if you want a glassy finish.

Try a bleach solution but you have to be carefull as it will raise the grain if left on too long

I'm going to assume that you have a stock that is oil soaked and that is the stain you are referring to. Once the wood is chemically stripped, heat the areas with a heat gun or blow drier on high. You will see the oil come up to the surface 'wet'. Wipe it off with paper towels dipped in laquer thinner or acetone. REPEAT... This will get most of it out. When the oil stops raising brush the whole thing with clorox. Let it dry and don't freak out by it turning white....it is just surface bleaching. Wipe that down and sand just enough to get back to the grain. Wash the stock off with water, let dry and sand off the whiskers. Your ready to finish. I have done this with 50yr and older stocks that were oil soaked so bad around the action that they were black. It works.

Thanks for input guys,

Well I tried acetone, it works(extremely well but it evaporate too fast, not much soaking time and acetone is expensive), and I ran out of acetone. Then I spray a paint stripper on it, the methyl hydrate removes the remaining coating AND soaks the stain, then I wipe the stripper off with a damp cloth and some water, the water is stained and wood becomes cleaner, right now I am repeating the spray/soak/wipe process.