I have a Winchester '73, manufactured in 1889, in .38-40. It's certainly not pristine, the bore was never very good, but now it's starting to keyhole somewhat. I shoot very light loads of Trailboss in it, don't know if that has anything to do with it.
So it crossed my mind to either rebore it to .44-40, or have the barrel relined in the original caliber. I know either will lower the value, wondering which would affect it less? I'll also have to factor in cost, don't know which would be less expensive.
In addition, have to figure out if anything internal would have to be changed to work with the .44-40.
Any thoughts on this?