Were a couple of new signs with rules and the like, 'no shooting computers'
My first guess would be that it's a housekeeping issue.
Some of the stuff I've seen dragged out there, shot up, then left behind, surprised me.
I wondered if some weren't using it not just as a range, but also as a dumping ground.
Old full size televisions, old fridges, etc. Stuff one would ordinarily have to pay to dispose of.
My second speculation is that maybe Tim is aware of future potential liabilities.
For now, existing shooting ranges are pretty well protected by law from many issues that would otherwise cripple other businesses.
Even the lead content in the berm, which would be illegal for any other business to deposit there is OK, being that it's there from "appropriate use" of the legal firearms that deposited it.
Other compounds, such as cadmium, mercury, barium, leaded glass, etc, commonly found in todays electronics don't fall under that "appropriate use" category, should the Guv'ment Man come around asking questions about what's in that thar pile o' dirt.