Mark If you read my post thoroughly, I said first to coat the barrel channel and lock mortise with a good stock finish. This will protect the wood from any ill effect from the oil based grease. I have a 107 year old Swedish Mauser, with a walnut stock, that has water pump grease in the barrel channel. I wanted to make sure the wood was sealed properly under it, but could not get the main stock bolt out of the gun. I finally gave up, figuring that if the stock has lasted that long, it surely is stable, and its not falling apart from rot, either.
i understand your concern, and thank you for reminding readers of the importance of protecting the stock from the effects of oil and grease. I do that by sealing the stock with a good finish, inside and out. After that, you can put the grease in the barrel channel to protect the barrel from rust. :thumbsup: