As general interest, here's the answer from the same post on another forum:
Barrel changes are FAR more complicated than you'd think.
It requires a fair amount of expensive equipment, and the knowledge of exactly what needs to be done and how to do it.
I strongly recommend leaving barrel work to a qualified gunsmith, with the warning that not all gunsmiths know how to do it right AND have the specialized tooling either.
A guaranteed way to ruin a revolver is to do the old shade tree gunsmith trick of putting the barrel in some wood blocks and using a hammer handle to twist the frame off.
At a minimum, to do a revolver barrel change you need:
Aluminum barrel blocks.
Barrel vise.
A frame wrench with the special hard plastic inserts to fit THAT specific frame.
A lathe to cut the barrel shoulder.
A special cutting tool that works down the bore to cut the barrel/cylinder gap.
A tool to re-cut and lap the forcing cone.
A special plug gage to gage the forcing cone.
