Polymer-framed pistols are usually capable of all the accuracy you can use.
But, they seem to magnify a couple of shooter errors involving grip. If the shooter varies the tension of their grip, or squeezes too tight with the bottom two fingers, it can shift the group more than with a "metal gun".
Hey, if they show you that you were doing something like that, and you didn't know it before, that's good, I guess. Assuming it gets corrected.
I was a Glock nut. I've had 12 or 13 (eight different models, five calibers), but only have one, a G19, now. I don't want this to sound like an attack, but I think people need to know if any gun they plan to carry has weaknesses. And I think they do.
I was happy as a clam with Glocks, until I started breaking them. The 19 broke the trigger return spring after 7-800 rounds. If that spring breaks, the trigger won't return on it's own, but you can push it back with the tip of your finger. I learned that it can sorta bounce back if you snap your finger off the trigger after firing the round.
Either way, it's not something I would've thought to try had it happened when I NEEDED it.
I had a Glock armorer replace the spring, mostly because I wanted to "show off" that I had broken one. He had not seen that before, and didn't even have a spare spring, so he looked it over for anything suspicious. There wasn't, so when he got another spring, he replaced it, and off we went.
It broke again a month or so later, followed by my G29 breaking the same spring about a month after that. When I took the 19 back to the armorer, he said he had two (I think two) more come in since my first time. We went with a NY1 trigger spring that second time in the 19, and in the 29. The NY1 and NY2 spring is a different design, and I've had no trouble with it. It makes the trigger pull heavier, but less "squishy".
The standard spring is a coil with a hook at each end. One hook goes through a hole in plastic, the other through a hole pierced in steel. The hole in the steel isn't relieved by chamfering, so it stresses the spring, and it breaks.
Other than trigger springs, I had an extractor chip in a 10mm, but it still worked. The ejection pattern was here and there, but it worked.
Although going to the NY1 trigger spring ended the spring trouble I had, I wouldn't trust Glocks anymore, quit carrying them, and have traded off all but one. They usually shoot well, feed anything I would try, I can pick up any of them and know how and where it will shoot, but I just can't trust them now. They're good guns, but "perfection" they're not.
I'm pretty much back to where I started with carry guns- 1911s, HiPowers, and sometimes an HK P7.
