Free: Contests & Raffles.
You said it shoots well. Why fix it, if it’s not broke? 🙃That being said. Do whatever the heck you want to do with it. I’ve taken a new unfired Rem700 Classic in 6.5x55 and had it rechamber to 6.5-284. I was good with it but the collector types sniveled a bunch on the forums. Then again there are a bunch of snivelers out there. ❄️❄️❄️
You'd think collectors would want it messed with so the value of the others would increase. Unless they think they are going to get their skinners on it for cheap.
Still shoots like a tack driver.
I would have already had that barrel hit with a 30 Gibbs reamer and a can of Krylon. It’s just a tool. The love is pre-64 Winchester’s is more about nostalgia than quality anyways. There are better designs, techniques and materials available today to build better tools.
There will be a time where you wished you'd left it alone.All of what you described doesn't seem to diminish the function.Leave the memories, patina, intact.