They want to make sure we, at least half-ass, know what we're doing. They don't want some jackleg shooting over the berm, or trying to walk it in by trial and error.
Our range also has the assault deck, a range specifically set up for ARs and AKs. 100, 200, 300, 400, and 500 yard steel targets. Rapid fire all you want.
Nice thing about ours is there's state trust land behind it for 8 miles. We lease by the day for long range matches to get out to 1500, but on a normal day anyone launching an air ball can't possibly hit anything but grass.