I had a brand new one that did the same thing.it cost me two deer and one turkey.had an empty chamber when I pulled the trigger.
I sent it back and they said they fixed it."NOT". it did the same thing again.I called them and they said send it back. I sent it back,they said if it did it again they would replace it.
Well it did it again and again.they would not fix it again,they just blew me off.so I got rid of it.
I have talked to a lot of people that have them and had no problem at all.I have also talked to several with the same problem and can't get it to stop.

I don't know how to help you ,the factory couldn't even help me.[:@]