My son shoots an 1851 navy conversion in 38spl. It has the long barrel 7inch? He wanted a 5inch barrel to match. I quess they dont make a short barrel 36cal all I could find was a short barreled 44calb sherrifs model. Well I had one of those so I bought a 38spl conversion cylinder. When I put the cylinder in the 44cal everything lined up and worked but the gap was too wide between the cylinder and the barrel. 44cal cylinder is a bit longer. I milled just that amount off where the barrel mates to the frame. That also meant I had to do some work moving the wedge slot. That was just adding a spacer to the back and filing out the front.
Then came the nice part I ordered a 38calb barrel liner from Numrich. With just cleaning up the liner and putting a piece of sand paper up and down the barrel with a clean rod on a drill the liner slipped right in. I ending up using the epoxy method instead of soldier because I didnt want to mess up the blue.
Took me about a half a day. Most likely about the same amount of time it would have taken to shorten a 7inch navy barrel and loading lever. But this way I ended up with a true 38calb barrell. I think one could do the entire job without machine shop tools.
Dean