There are many that I built over the years
Some time ago a SxS had it's barrels crushed during a robbery attempt. I bought it cheap and turned it into a nice little coach gun
Using a aftermarket target stock, bolt and trigger group for a Ruger 10-22 This receiver was machined from a billet of aluminium. It has an equipment rail machined into the receiver top. The barrel was turned from a match 22 blank. Unlike a Ruger, I threaded the barrel into the receiver for better accuracy.
Then thanks to inspiration from Bad_Man_one I have my 1014 and 1013 Smith and Wessons
YouTube
And my Smith and Wesson CS10s
However those were not my first pistols converted to the 10MM Auto cartridge. I must have done this Mauser M2 10 years ago by now
There are more, but I am too tired to try and find the rest of the pictures. You know, Model 940s opened up for 38Super or CZ style pistols changed over to 9x23 Winchester or a Marlin Camp 356 now chambered for the Smith and Wesson 356TSW, etc, etc, etc.