First of all, the inserts didn't cause the problem.

I know of 3 new Berettas that did this, 2 of them were mine.

Wood debris from stock inletting was the culprit each time.

Pull the stock, or have someone who knows how pull the stock if you're uncomfortable doing it.

Work everything over with an air hose.


"The price of good shotgunnery is constant practice" - Fred Kimble