I haven't been to the Kingsbury range, but at Wilbur Wright near New Castle, the little booth where you sign your admission card has a sheet of rules posted that says (among other things) that no handgun may be worn or drawn from a holster. This may differ from the official policy, but that's the current range rules and the range-dude on duty points it out and enforces it. He at least waits to get your attention then tells you you can't holster carry on the range. It's supposed be in a case or bag. Actually a lot of people come and lay their uncovered weapons on the table... curiously no one ever says anything about that.