When I can shoot WWB 115 gr or WWB 124 gr NATO in my Keltec PF9, Glock Gen 3 G17, Colt Pocket 9, Beretta 92FS, Hi-Point 9mm, and Springfield XDM 3.8" Compact with no malfunctions, BUT my new Gen 4 G19 won't function with this ammo then I would say it has to be the gun and not the ammo or op. If I have to fire +P+ to make it function properly then I don't want it! Who has the $ to burn on $1+/round for practice ammo! I like to shoot my guns and feel they should function with almost any type ammo and any type grip, even limp wristed or one handed. In a self defense scenario, especially if you are wounded u r not going to be able to take an ideal stance and grip to return fire. I want a gun that will shoot anything u put thru it from any grip or stance. I can't make my Springfield or other 5 glocks (gen2 and gen3) malfunction even when I try. I even shoot Monarch Steel thru them!