Re: M1 Grand experts wanted.
Hay I have a lot of old Military rifles so I will add my two cents. Dont know how much feed back you will get as this is a Long Range hunting site but this topic intrest me so here you go.
Wood on old Battle rifles is allmost allways stained from years of oiling the weapon. When ever I get a new gun I strip the stock down and then settle in to my bench with my heat gun and set to leaching the oil from the stock.
I dont do anything special to the wood after I have leached out the oil except try to wipe it down and with a damp cloth once and a while.
Short awnser to your question I guess is I do nothing but keep them clean.