What do you consider to be vintage? I’ve sent many a wheel gun back to S&W and Ruger to correct timing, cylinder gap, and other safety/functionality type issues. Even had S&W bead blast a 629 from the early ‘80’s. Gun came back looking new.
What I’ve found in looking for gunsmiths is that the manufacture will do the safety/functionality stuff. If you wanted a barrel shortened, or ported, for example, the manufacture most likely won’t do those types jobs.
Cost wise, it’s hard to find a ‘smith. When you do they will be backed up with many months of work. The cost is what it is. They are becoming a rare breed.
I sent a S&W out to a ‘smith once to fix a red dot mount that I had put on by a local ‘smith who’d since gone out of business. I sheared the mounting screw’s off (.44mag) as I let them get loose. Guy did a nice job, turn around was a few months and cost was reasonable.
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