Hello and welcome NJS!!!! There as many of finish options as there are hairs on a dogs back but I will share my water proof, non PC finish with you! After de-whiskering and staining I give the stock a liberal coating of Thompsons water seal, brush it on till it is dripping, barrel channer lock mortice, and don't forget the ram rod hole!! let is soak in good and wipe any drips or excess off. Let it dry a full 24 hours and do it again!! Then 24 hrs after the second coat I mix TWS with Formbys low gloss tung oil, 50/50. Coat the entire stock , in barrel channel, lock mortise, etc, wipe off excess and hand rub the oil on the exposed surfaces that will show when finished. Do a second coat of the mixture and rub the exposed surfaces again. After 24 hrs you can then start applying finish coats of pure Formbys, just on the exposed surfaces and hand rub each coat in till a nice luster is obtained, probably 2 to 6 coats,,,up to you.,,,Ed