Here is an idea for those that like paper cartridges for cap and ball revolvers. I may be the last person on earth to figure this out, but I saw one included with a cartridge making kit. Paper cartridge making moves at the speed of a glacier, so anything that speeds it up is good. I used a small piece of hickory wood, and a toggle clamp. Made the template also from hickory, by gluing a paper drawing onto the small piece of wood and sanding to match. Now I can cut 5 layers of nitrated coffee filters in seconds with the Xacto knife, no more tracing and cutting. It helps to staple the layers of filters together