I just got a Kel Tec PF-9 Chrome. Nice gun and very thin to hide on the waist band. I took it out and shot several types of ammo and different weights as well through it. The rounds my gun liked was the Federal Hi-Shok 115 gn JHP and the Federal American Eagle 115 gn FMJ ball. I found that they would key hole in the paper less than the others. Has anyone else had this problem? I think that if they are almost sideways at 3 and 5 yards they are tumbling at 10. I can keep all rounds in the bottle shooting from 3 to 15 yards but at 20 -25 in is getting hard to control. It is a small gun, this I know. I am not excited to carry as a back up or ccw loaded with tumbling hollow points. I do have a call in to Kel Tec but I was curious if anyone has noticed the same problem with tumbling rounds out of this otherwise great gun?