Goex and Swiss in the flint-er
Pyrodex in the Hawkins [both] and the Renegade
Blackhorn 209 in all the inlines
Have used 777 the crud ring was a nightmare. the only time I did not enjoy shooting
Tried several different versions of APP weakest powder there is and every once in a while I got a can that shot all over the target.
Would use more black but it is very hard for me to get, I find Pyrodex a good sub for percussion sidelock guns.