User blog comment:Grand Admiral Harmon/Across the Atlantic: Iron Brigade vs French Foreign Legion/@comment-4698460-20160916020312/@comment-17814994-20160916233858

There were some rude methods of cartridge conversion during the Civil War (such as Rollin White). But it's true Colt only got interested with it in the 1870s. I think it's better that you use a cap and ball. It won't make that much difference in fairness since both. Are stilldifficult and almost impossible to reload in combat.