Sounds like the Range Master wasnt doing their job.
One of the features of this sprawling remote range is that each member gets a key to use it anytime, and agrees to follow the range rules on the honor system.
Except for match days, there is no range master present, and each shooter is expected to take care of the range as if it were their own. Membership fees are very low, and all work is volunteer.
After some time with minimal problems, there has been a rash of willful destruction, all done with AR/AK. Not every AR/AK shooter is destuctive, but all this damage was done with AR/AKs.
We have caught only one shooter with an AK putting targets on our barricades, and his excuse was "I don't see why you can't still use it." His key was confiscated and he is banned. He obviously was not the only problem.
For the poster that thinks this is a bogus problem, you are welcome to come view the destruction. I don't own the range, but I have to clean up the mess made on the IDPA stages. In May, the IDPA classifier barricade, barrel, and targets stands were shot to scrap, mostly at a distance of a few yards.
The range owner was unable to mow the rifle range because it was covered with over a truckload of metal, wood and glass scrap shot up and left, so we had a workday for rifle shooters to pick up the garbage. Few showed up, and I'm sure they didn't make the mess.
Blaming either the gun or the range system for slobs is absurd, but the problem is real, and could result is range restrictions on everybody, or even closing the range.