I had a gunsmith take it apart, clean it with ethyr, then spray it with G-96. Still misfiring. I was told that Benelli's can't shoot consistentely in cold weather. Benelli said they'll take it in for a look. I'm going to send it in. I didn't want to waste the time, though, if it was caused by my not holding the butt tight against my shoulder. After 150 shots, you get kind of sore, and I may be subconsciously not holding the gun tight, therefore causing the bolt not to lock, thereby causing the firing pin to malfunction. I was hoping someone else had the problem and could lead me in the right direction.