So I went with my dad to the range the other day and while shooting my new 92A1 I was halfway through a magazine and I pulled the trigger and nothing happend! I held the pistol down range for a few minutes thinking perhaps it was a hang fire or something but it never fired. I also tried a pulling the trigger to strike the primer a few more times but this didn't get it to fire either. I took it back to the bench to look at it , and I realized the slide was actually sitting back ~1/4" or so and that it also would not move!
After doing a brief internet search on what to do it seemed that perhaps I had a broken locking block (on a brand new pistol!) so I applied some force on it to get it to open and low and behold, the round ejected. However, after further inspection of the pistol and the (unfired) round I noticed that the brass case was ~1/16" longer than the other 9mm ammo I had been shooting that day. I re-chambered it slowly so as not to jam it into the chamber again and once again the slide was not closing all the way and stuck back just slightly. I am just glad the gun was not actually broken and that the ammo was the problem!
Anyone ever have something like this happen? Anyway, I guess the moral of the story is make sure the brass on each round is actually the correct length!