In the 90's I bought couple hundred 9mm 115 gr lead rds for about $6 a box. I didn't own a 9mm at the time but numerous people I invited w bring a 9mm and forget my warning - my clubs indoor range is lead only and they inevitably w show up w FMJ.
I just didn't have the heart to tell them they couldn't shoot, so I w just hand them the box of reloads. They seemed accurate enough if the shooter did his part. Just don't use reloads or lead in factory Glock or you'll add to the Kaboom legend.
Only issue w lead is if you load it hot - will lead up your barrel if you don't use a gas check. Use the hardest lead you can find to mitigate problem. Some use copper coated lead to avoid issue.