Howdy Again
Probably close to fifteen years ago, I don't really remember exactly when, I had a 45 Colt cartridge conversion cylinder fitted to my old EuroArms 1858 Remington that I bought new way back in 1975. At this time Taylors was the sole outlet for Ken Howell's conversion cylinders that he was selling under the R&D label.
At the time, there were two versions of this particular cylinder available, one for Uberti replicas and one for Pietta replicas. I don't recall the specific differences, but since my old Remmie was made by neither, it was actually made by Armi San Paolo, I did not know which cylinder to order. I called up Taylors and they said to send them the revolver and they would fit a cylinder to it.
Notice I said fit the cylinder to the revolver, not the other way around.
The gunsmith at Taylors told me he had taken a Pietta cylinder that had not yet had the cylinder locking slots cut into it. He had a fixture he placed my revolver on that would determine where the slots needed to be cut so the cylinder would fit my revolver. He also had to machine off a little bit from the front of the cylinder so it would fit into my revolver. Then he sent the modified cylinder out to be reblued, so the fresh cuts would be blued.
I will add that in addition to paying for the cylinder, the only thing I paid was to ship the revolver to Taylors. I did not pay a dime for the smithing work, and they sent my revolver back to me with my original percussion cylinder in place in the revolver and the conversion cylinder in a small box in the same package. That way, they were shipping an 'antique' revolver, and the extra cylinder was just 'parts'.
This kind of service is why I always recommend Taylors when anybody asks. I believe they will still perform this work with no charge for the smithing work. And since the cylinder was fitted to the revolver, instead of the other way around, the original percussion cylinder still fits into the revolver in case I want to fire it as a Cap & Ball revolver.
Here is a photo of my 45 Colt conversion cylinder. The blue on the ratchets is scratched from years of use, but if any metal was removed there, it was reblued.
Another photo showing the cap removed from the cylinder for loading.
A close up of the cylinder locking slots that were cut into the cylinder so it would fit my old Remmie.
The cartridge conversion cylinder on the left, the original Cap & Ball cylinder on the right.