Return it, thats what I did.Mine would release both shells from the magazine causing a jam. On the rare occasion only one shell would release it wouldn't matter because the spent shell wouldn't eject. I didn't pattern it on paper but did try some skeet with it. It missed most targets where my 870 hits nearly all, so I don't think it was something I was doing. I hope you have better luck with yours because mine was a lemon.