I shoot at the Bass Pro in Grapevine as well. Before I got my CHL - I had to check in and get a trigger lock on my gun (which they remove when you arrive at the range), log how much ammo, how many targets, and if I brought my own eye and hearing protection. Now that I have my CHL, I just notify them at the door and they let you walk straight in without logging anything.
Secondly a range can't legally prevent you from concealed carrying and force you to disarm unless they have a 30.06 sign right? And unless they find out that you are carrying and ask you to leave, they don't have the right to disarm you. They can, of course, prevent you from displaying/discharging your CCW. Violating such a rule would give them the right to ask you to leave or prosecute based on the fact you knowingly presented your weapon without legal right to do so (reasons listed in PC 9)
Correct me if I'm wrong?