As others have stated, if hte bullet and powder go in the wrong way - it must be a muzzle stuffer. Now as to the Electra,The company came by our range one day and gave us a performance demo. My only problem was the diode. It took too long to recharge for the follow-up shot. They said they would work on it. If thye did, then it should work fine. If not, I canreload and shoot faster then that gun could recharge for another shot. 'Nough said.