Trying to shoot out a broken pullthrough with a blank isn't the best idea but then, when you're just 20 and........... and it's late on a Friday and............ I say leave it stood upright and fill the barrel with oil and let it stand for the weekend now. THEN set about it with a blank!!!!!! NOOOOOOOOOOOOOOO......, just a joke!!!!!!! Then set about it with the 'ADAPTOR, screw, clearing as described above!