I was hired by a friend of a friend to correct a new shooters push. We spoke on the phone. He was a smart guy and we agreed to meet.
I forgot to ask what kind of gun he had. When we met, I saw that he was trying to shoot about the most difficult to shoot semi-auto you can buy.
The Kahr PM40.
This is a TINY and very light .40 cal that is based on the PM9. It recoils pretty seriously and is impossible for most people to shoot well. Very few people can shoot it without having to reset their grip between shots.
Check out this video. This guy is an idiot. He's shooting a PM40 and regripping every shot. He doesn't recognize that if you can't fire a string of shots without regripping you need to get either a gun that is either larger or softer shooting or both. Watch on for 30 sec, he switches to a G27 and experiences a misfire. We get to see an ENORMOUS push. Which explains partly why he is such an embarrassingly terrible shooter. (He's bad and he doesn't know he's bad)
View: https://youtu.be/h2svnO6oO-0?si=2-0egxsqc-_4imWz&t=31
So anyway, we started this student out on a .22 for roughly 100 rounds. I was loading mags and he was shooting 8" falling steel at roughly 15 ft. His instructions were to go slowly and not miss.
We then switched to a Glock 34 and then a 365 X Macro with a PMM comp. Both are soft shooting 9mms.
He was doing great. We shot my regular small 365 and he also managed it ok. He wasn't great but when I slipped some dummy rounds into the mags we saw he wasn't pushing too bad.
We talked about the fact that he didn't carry the PM40 in his pocket and the fact that it was unnecessarily small for IWB carry. In the end we agreed that he should get rid of his PM40 and switch to either a P9, if he wanted to stay with Kahr. Or a 365.
But either way, the PM40 was (and still isn't) a good gun for 95% of shooters. Because they simply can't shoot it fast with any kind of accuracy. aaaannndddd most people who shoot one develop a push.