Interesting! If somebody can locate a .45 Colt Redhawk maybe we can ascertain whether the chamber placement in the cylinder is the same as on a 625. If so, all it would take is machining the cylinder.
Mike,
Standard 625 moonclip full of ammo WILL drop right in, only needs to be machined for the clips.
Angryreb
Rover, is that a 6-shot conversion?? If so, I think that idea has potential.