The muzzleloader my dad and sister use is a Thompson/Center Pro Hunter topped with a Nikon Omega 3-9x40mm scope, firing 250 grain T/C Shockwave bullets and sabots with 3 Triple Se7en pellets.
Mine is a CVA Optima V2 handgun, soon to be topped with a Nikon Force XR 2.5-8x28mm pistol scope. For hunting, I'll use 200 grain Barnes XPB bullets, Harvester Crushed Rib sabots, and probably 80 grains of Blackhorn 209. For practice, I'll substitute cheaper Berry's 200 grain HPs.