Here's a pic of the loaded paper cartridge for the Sharps, as per the recipe widely published on YouTube:

A couple of cartridges and percussion caps ready to get cracking:

...and here is the result on paper. First shot a bit high, second shot on the ten ring by aiming appropriately low to compensate:

Despite my best intentions I have not gotten back to this project.
A bunch of paper tubes have been glued to carefully constructed lead bullets, awaiting black powder and origami...

Hopefully more to report soon!