Keep shooting it, it'll get worse. I have an 81 that was like that and it went from happens a little to happens all the time. And I did all the normal 1100 stuff like cleaning and changing the o rings etc. That said I put down thousands of birds with that thing Im sure.My dad shoots my great grandpa's 1100 from the 70s, he piles up the doves with it and it doesn't malfunction. I shoot my grandpa's 1100 from the 80s, it only malfunctions once in a while. Nothing serious, sometimes it doesn't feed the 2nd shell, only takes 2 seconds to feed the shell when that happens.