Refinishing can’t hurt the gun as long as you separate the metal and the wood. If you have doubts about your ability to do this, have a gunsmith do it. I recommend Birchwood Casey Tru-Oil. It has been around for years, is simple to use, and gives excellent results.
Outdoor Skills – Hunting Q&A
I have an old Stevens side-by-side whose stock has taken a beating over the years, and I'd like to refinish it. Will refinishing harm the gun, and can you recommend a good sealer for the wood?