I have a browning 9mm+p. I just shot it at the range yesterday i go to clean it today and I cant pull the hammer back to move the slide and break it down. Any advice would be incredibly helpful. It was passed down from my uncle and it would mean a lot if I fixed this right away. I cant see anything that would be jamming it up. It just does not want to let the hammer go all the way back and the slide itself wont even move to distance the hammer does. Please help.