ORIGINAL: frontier gander
pellets?
Stick with Goex ffg.
I never heard of this muzzleloader so im really no help.
Seeing how it has a 1:28 twist, i'd give some 295 grain powerbelts a try.
I shoot 300g Gold Dots with Crushed Rib sabots in my 1:48 TC Flintlock. Powerbeltswork, but I would shoot 348g, and only take "bow shots" with the PB, since they fragment with shoulder and bonehits. Do NOT shoot 3 pellets in the RMC, waste of powder, and kills your shoulder.
Chap Gleason