Got a new Glock 44 for about a month but took it out this Thursday for a USPSA practice session. Folks have been shooting 22 models of production guns or conversions to save on ammo but get some practice with mag changes, etc.
First load - jams. Does it again and after some reloads. The ammo is Herter's 22 LR plated 40 gr, 1300 FPS. Some research says this not uncommon. My load technique was to insert mag and sling shot the the slide.
Some suggestions and experimentation. Only load 9 rounds. Folks on GT say that the 10 round tends to load flat instead of at angle and runs into the feed ramp. You can see a flattened nose on the jammed round. To fix that - turn mag upside down and pull on the mag tabs to get the tenth round at an angle. Or only load 9 rounds at that one doesn't go flat.
Tried that and had more success. Did another reload with 10, flat round and sling shot - jammed.
Another was to rack the gun back and lock it. insert mag and use the slide release. Seemed to work with 9 and 10.
When it ran it was fine. My first practice stage was all to the right (I'm a lefty and this is my flaw). However, on the next stages, paid attention and mostly As' and few C's.
Like the gun, the grip angle is fine. We will see at the next run what happens.
As an aside, my G42 - first time fired, it was a new one - jammed solid as a rock. Had to go back for the upgrade. I recall Greg Hamilton saying the G17s were rock solid, after that - not so.