My Musket Caps

I've tried about everything on youtube for making percussion caps for my 1861 Springfield. Roll caps, star punched roll caps, I couldn't find a source for the 8-ring caps, with black powder, with Pyrodex,.... One flash that I would call a success but most attempts plugged my nipple,,, solid! I went back to the Prime-All that I had in stock, capped with a simple disk of cigarette paper. I think I have reliable caps after snapping a few. Out to the range today for a real test.