In my research on doing a threaded vent I came across these slap hammers. They use a musket cap and musket nipple. My question is
I use foil packs to hold the blackpower charge. How do you prick the foil pack once it is seated in the chamber? Looking at the musket nipple the fire hole diameter is the size paper clip wire. The nipple is 5/16x24 thread. Drill the nipple out?