Personal accountability anyone? Nothing stops you drinking before or after the range the difference is simply the proximity of the the establishment serving the alcohol. If you stopped at the bar down the street before you got there and showed no obvious signs of intoxication is that bar owner liable? How about the range owner? What about the guys on prescription drugs? Maybe you should piss in a cup before you're allowed access?

Let's try to refrain from promoting laws based on a worst case scenario of what might happen. If it makes you uncomfortable to be at a range that also has a separate bar just go someplace else and let the market settle it. Personally I'd probably not visit that range but assuming everyone is so irresponsible that we shouldn't be permitted the choice sounds eerily similar to no one "needing a firearm designed for war" and other liberal nonsense. I'm a big boy and if I decide to drink I put the guns away, it's not my place to tell someone else they aren't as responsible.