Well, I and lots of others shoot the .360 roundball out of the ShinSung 9mm and get one hole at 35 yards with the wind, the 909s shoots the 143gr .457 roundball real well, 1/2'' groups at 50 yards, I don't have the dragon Slayer yet but they say shoots the .495 roundball better than the 909So yeah you can shoot the roundball accurately in rifled barrels