I live down in south Sa there a Shop / Range Called "A Place to Shoot" on 381 which charges 10.00 per head and you can shoot as long as you have ammo.
I live on the NW side of town and often go to A Place to Shoot even though it's about a 30 mile drive for me. Main reason is that I've never had to wait for a lane on the pistol range, never very crowded. Also like the fact that the pistol targets are on a pulley so you can bring them in, move them out, change them without having to call/wait for a cease fire. Just wish they'd get the ones fixed that aren't working. Nice rifle ranges too, and they have skeet/trap/country doubles for shotgunners.
Probably a bit far from Boerne but just my $.02