Not trying or even wanting to start a debate about shooting nekkid lead bullets in a Glock, but would powder coated ones eliminate any concern if there was one?
Just for curiosity, I checked several suppliers for 9mm jacketed bullets & it seems they are as scarce as the ammo.
Forget jacketed. HiTek coated lead is the bee's knees. Brazos is the cheapest, but limited selection and only about 13bhn for hardness. I shoot their 9mm & 40sw fodder and like them.
Missouri Bullet Company - better selection and harder. I still use their products when I'm trying to shoot nostril to prostate on bear.