We flew out west in July and I carried two hand guns in one locked case. A box of ammo and two magazines for each. Magazines were empty and I added a cable lock to each. I had a label with my name , address and phone number on the case. I walked up to the counter and stated”I need a declaration for a case inside of this suitcase.”Filled it out and they attached it and checked to make sure the locks on the case were closed. That was it. TSA never asked for my keys on the way out or on the way back.