I got a discharger for Christmas. I was out hunting today with my flintlock and when I got back I tried the CO2. The pressure blew the Powerbelt out of the base and blew the powder thru the little hole in the base, but left the base in the barrel. This could be a potentially dangerous situation with a base being left in the barrel and loading another charge, because some powder would make it thru the hole in the plastic base and to the breech. I put a ball puller on the ramrod and retrieved the base easy enough. The screw catches nicely in the hole in the plastic base.Watch when you use them too because the bullet went into the ground and I gave up looking for it at about 8 inches deep. Very powerful.