One of the ranges here has a 250 member limit. It's setup pretty much the same with just a gate and padlock to get in. Once you're in you are supposed to sign in/out. They had a problem with people shooting benches and other stuff up so they added a couple cameras and that pretty much solved it as they were able to catch the people and kick them out.
One of these days, I hope to get a membership there myself.....there's about a 2 1/2 yr waiting list.