Hellbender

I would have about 4% failure to fire with good strikes in my pistols until I started seating them deeper with a hand primer after loading my cartridges using a SDB. After that I had no problems.

Thanks for the compliment, Yul, but I'm not the "Hell" you're thinking about Hellbender

Having about a dozen different videos of shooters at your club looping continuously on a laptop will draw lots of folks to your table at a gun show.

I also use 158 grain RNFP bullets by Scarlett in my 1866 and have never had problems with them. I load them with either 3.2 or 3.4 grain Trail Boss (yes, I still have some) to an overall length of 1.50. I've also used 125 grain truncated cone bullets by Scarlett and others in the same gun to an OAL of around 1.45" with the same Trail Boss load, again with no problems.