I have a couple pounds of Red Dot, purchased from a friend. He poured it from a 12 pound can of Red Dot Shotgun powder. Can this also be pistol powder? My Lyman Third Edition Pistol and Revolver Handbook lists various loads using Red Dot, just want to ensure it is the same Red Dot powder. Can says Shotgun powder, maybe it is similar to Unique, can be used in either pistol or Shotgun...Am I right?