My Knight Disc Extreme likes 120 grains of Hodgdon Triple 7, 209 Winchester shotgun primer, and a 395 grain CVA Powerbelt bullet. Five shot groups off the bench at 100 yards right on the money all touching each other in a less than 2" circle. It shots the Blackbelt bullets just as well as the CVA's. The Hodgdon Triple 7 powder is much easier to clean up than blackpowder or Pyrodex, however it doesn't yet come in the pellet form.