For the range I belong to, that is not the reason. Their berms only go so high and they don't want rounds flying a few miles down range when someone lets it get out of control. I figure that would happen to me at least the first time I tried to shoot one if I wasn't at the short range berm. I think there is also the issue of shooting up the target boards and stands.
They recently had to take down the shotgun patterning plate as someone shot it up with a rifle. They also have had issues with people using flag poles and target board support posts as targets.
It is a more or less unsupervised range. They put up some cameras recently, but that was mostly due to theft.
Same issues at the range I'm a member at.
Some a-hole miles away, sprinkled .45
ammo on his lawn and threatened to sue. The club built bigger, massive berms to prevent any future claims in case someone who isn't a complete moron makes a claim in the future.
That being said, most of the members are there for sporting clays/trap. There are maybe 100 people in total that shoot in organized rifle/pistol competitions, and the club's voting mass tried to shut down the bullseye pistol, highpower rifle/CMP and even the F-class matches because people were 'firing more than 1 shot per minute.'
I used to belong to a club that was exclusively a R&P club, and people who made such proposals would be laughed at, if not kick out of the club. FA shooters were not only welcome, it was almost expected of them to bring enough fun for everyone.