Good evening everyone, I'm new here and was needing some help with a serious malfunction that I had on my 3rd Gen Glock 19. I was at the range this weekend and was shooting and I had what I thought was a hang fire. I waited a minute or two and then went to eject the round. Much to my dismay, the slide would not budge. I put some serious muscle on it, but it wasn't moving. I feel like an ***, but I didn't clear it before I left the range. I know this is not ideal, but I could not clear it, and still being somewhat of a novice, I didn't have much choice since I did not know what would cause such a problem or how to fix it. I was at an outdoor range with no RO there, so going to the RO was not an option. So, my slide is locked and will not move, I have a live round in the chamber, the trigger is depressed and will not reset. I have done some reading and from what I've read, I need to essentially use a rubber mallet to get the slide to rack due to a bad crimping issue on that particular round. These are not reloads. I was using Federal FMJ in 9mm Luger. I live in the city, so hammering on the gun at home is not a good idea since it would be very bad if I had an ND. Is my analysis of the problem accurate? I called the local shop with a range and told them the issue and they said I could bring it in for their smith to fix it. Should I do that or just go back to the range with a rubber mallet and do it on my own?