The Jennings 9mm's do jam alot if you use hollow points. But it's because the bullet get's caught on the firing pin on the inside. ( atleast that's what I think it's called) I filed mine down some and I never had a hollow point jam again. I had the black one like QD has. I lost mine when I had a car wreck a few years ago. Went off a bridge and had to swim it and lost my gun. Damn, I miss her she saved my life a few times.