OK, Im leaning toward 777 loose. Not to make it more complicated
but would 777 work to prime the pan with? I know it has to be a finer grade (fffg) but the water cleanup would sound good on the outside as
well as the inside, not to mention the absence of the rotten egg syndrome.

Anyone shoot a lighter round like the 245gr Powerbelt? Does 90gr 777
sound like too much for this round?

IM lovin this flintlock stuff, lots to tinker with!!!