[Pennsyborn]

Get some bright surveyor ribbon, a couple of different colors , and attach it to the handles of your box. I flew into Missoula , Mt years ago, the flight was full of hunters. There were several identical boxes to mine, and another hunter accidentally picked up my box. We were able to find him before he left the terminal. That will never happen again…my box is now covered with stickers from everywhere it’s been. You can’t even see any aluminum on the box.

It‘s always an anxious time waiting for your box at the baggage carousel in the terminal. Hoping it’s was on the flight. You can always hear that Cabela’s box coming before it gets spit out on the carousel. That aluminum has a distinctive rattle….
Ive been fortunate, my duffle and gunbox have always made it to my destination. Although once, my duffle was shredded and my gear was scattered on the conveyor. Coming home? Three times the airlines had to have my bags delivered to my house because they didn’t make the flight home.

A lot of airlines now have a bag tracking App. You sign on, and it will tell you when the bag is scanned as it enters the baggage hold on the aircraft.

I used a paint stick and put my name on it in big letters on both sides of my case. Dozens of
international trips and it's still there.

Replying to the OP, That case will not pass any FAA or ICAO test for transporting firearms. You can use TSA locks on your gun case but be advised they can be opened with a paper clip and keys are readily available.