Interesting. I've hardly shot inside. I have a little time on a range, but much prefer outdoors. We have a shooting complex here that has at least 10 ranges, all out doors. There are a couple of really formal LEO grade ranges, a large trap range, skeet ranges that are formal and normal. There's a 100 yard and 1000 yard informal range, two informal pistol ranges, black powder, archery and sporting clays. It used to be the only county park in Yuma County but they sold to state Fish and Wildlife. Better administration now..
I don't guess singing 'Toe the Line' is appropriate here...