I took my new Beretta 92 FS out yesterday and shot it for the first time. What a sweet shootin' gun. However, I had an experience that I need advice on. While shooting reloads, the slide would not lock in the open position after the last shot. The slide would be closed, and the trigger would fall on an empty chamber. Is this because of the reloads? It didn't seem to do this while shooting the factory loads, and it only did this on some of the reloads. It even happened when my buddy shot the reloads in his Sig. Any thoughts or help would be greatly appreciated.