Hear be the wild hair. The octagonal portion of the 47 Walker barrel will yield a working barrel of about 3 1/2 inches. I really like 3 1/4 to 3 1/2 inches for barrel length on a Snubbie. So ..... the plan is to cut the round part of the barrel smooth off (paper weight) so the end of the barrel is flush at the end of the octagonal portion of the 47 Walker.
The 1st 2nd or 3rd model Dragoon barrel would result in a poorly balanced gun. I actually need the weight of the '47 barrel lug to give good balance. Plus, the longer barrel lug will look trix.
The plan is also to include a Kirst Konverter. Specifically, the Gated Konverter for the '47 Walker which will also and incidentally be through bored to accept the 45 Brimstone cartridge. I figure the 45 Brimstone out of a 3 1/2 inch barreled Walker would be just AWSOME!! At a night match, it should stop traffic. Especially a 460 case filled with Cannon or 1f.
I'm still not to sure if I could call a Dragoon/Walker/Brimstone/Conversion a "Snubbie." Even with the short barrel it's gonna be massive. As in LARGE!! Kinda like the BIG package of Charmin!!