Conversion Question

[Comanche Kid]

Anyone have a line or any info on converting one of the older ASM 1873 SAA clones from BP C&B to cartridge? I have one with the loading gate and ejector set up. Looks like a Uberti cattle man cylinder would work. Thought I would ask before I tried to blow my pistol and myself to kingdom come.

[pony express]

I've never looked at one of these guns, but I think I read somewhere that the firing pin fur the percussion model is a lot different than the cartridge gun.