Nice one Jared ! What did they recommend for projectiles ? I know you got loose powder . Pyrodex or real black powder ?
That gun is different than my Thompson Center sidelocks that use number 11 primers and Thompson Center Inlines that use a 209 primers .
My loads for the TC White Mountain Carbines side locks are 90 grains of Pyrodex shooting a 350gr Maxihunter lead conical bullet . Right on the money !
I have 2 of those guns . The other one is a little fussier . It likes 80 grains of Pyrodex and prefers 375gr Maxiball lead conical bullet . So you are going to have to experiment a bit to find what it likes . I have never use a gun that uses musket caps for a primer . You have some strange muzzle loader laws there .