Hope the new shells work. Mine didn't. I've heard of a few more people with the same problem. Benelli fixed mine but a buddy of mine actually got his gun replaced. They could never get his figured out. The bolt shouldn't stick open. I personally think we had a tolerance problem and the new trigger assembly and polishing the bolt fixed mine. Alot of these guns don't ever get oiled and work fine. I dont think the oil is the problem either.