Reasonable? It is insulting to me. When you refinish your grandpa's rifle you are erasing FOREVER any part of this rifle that was your grandpa. Every dent, ding, scratch and abrasion is your grandpa's history with it. Why not just tear your grandpa's face out of all the family photo albums in which his hair isnt approriately combed to your standards? By all means remove the rust as that is a cancer that can spread, give it a good cleaning and leave it alone. Relish in the fact that it is worn badly. Tell the story to anyone that will listen how your grandpa wore this rifle out, and show them the evidence. Go hunting with it and every time you miss because it is not accurate anymore, smile up at heaven and say sarcasticly "thanks alot gramps". Those scars on the stock could have been inflicted in mortal combat with a wounded woodchuck. Who knows? I do know if you remove them because it isnt purty enough for you, those scars will never have a story to tell. When I hand down my guns to my grandsons I will tell them about every scratch on my old model 70, and how they were recieved while I was a big game guide. I will tell them the arasions on the Smith model 19 was the result of an ATV wreck inwhich the guns was recovered at the bottom of a river. Relish the fact your grandpa used this fine gun. Be proud it looks the way it does. Most guns leave the safe for trips to the range then home, never to have an interesting story to tell. Let your chest expand with pride that YOUR gun has been there, done that, and got the battle scars to prove it.