I believe that firing a revolving rifle of that type involves care where the supporting hand is placed and not near the cylinder.
Bought a Pietta 1858 Army .44 cap & ball, added a .45Colt cylinder w/loadng gate, dremeled out metal to allow adding or removing cartridges, added a Cole style ejector and its now a terrific .45 with great, easy trigger pull. All expensive but will shoot right up there with my Vaquero and Blackhawk of the same caliber.
NRA Lifer Since 1968
Former Texas NG