Actually I used the wrong terminology in the above post. It is the shell carrier that is sticking. Since my initial post I have found another thread on this forum that addresses the problem I am having. It appears to be quite common in the Nova 20 ga. On the other thread I was given a YOUTUBE link to help me with the problem. I will probably contact Benelli about it to see what they can do before I attempt the repair on my own. Sorry for the trouble, I should have researched the forum more before I started asking questions.