I know there are a few brands of these conversion cylinders to shoot cartridges in Captain ball pistols whether it be the Ruger old army or a steel framed Pietta 1858 you can get conversion cylinders to shoot cartridges. And they're supposed to be cowboy loads so they're a low velocity low pressure load I get this which are also most of the time modern smokeless power. What is so wrong with shooting the very light load properly measured smokeless powder in the cap and ball cylinder? Is the nipples the weak point? And not proper ignition? I know the experts in the books and lawyers till you do not do this.
