For percussion revolvers.
Needed a place to save this link, How I make paper cartridges.
The mechanics of mid-nineteenth century firearms have always fascinated me, but until I finally broke down and bought my own 1851 Colt Navy revolver I only had a vague idea of what was involved in shooting one.
Now the thing about percussion, a/k/a “cap and ball”, revolvers is that firing them involves carefully pouring a measured amount of black powder into each chamber followed by a lead ball. That can not only get messy, but take up a lot of valuable range time. Using paper cartridges can at least save time at the range, if not reduce the amount of dirt and grime involved in the process.