There was someone on here that showed pics of how they attached their pistol case to the inside of their checked bag. Keeps the two from being separated -- any thief would have to steal the whole thing.
Found it. From Rocky:
https://2ahawaii.com/index.php?topic=45288.msg418471#msg418471You could also check a medium-to-large Pelican case at the counter as a separate piece of luggage. Nice option if you have multiple firearms, mags, lights, RDS, holsters, etc. which take up more space than a small Pelican accommodates. This has the benefit of freeing up space in your luggage for more "stuff", but could also mean paying for another piece of luggage unless a couple can share one bag for their clothes and stuff within the max weight limit.
Delta's policy limits liability for lost luggage at $3,800 per ticketed passenger. If you're traveling with someone else, and have more than one firearm, it's probably better to place the guns in separate bags. That makes it less likely both firearms go for a walk, and it doubles the loss coverage. Easier for two people to get paid for separate claims for < $1000 than it is for one person to claim close to $2000, assuming firearms, accessories and regular luggage items total that.
Just some ideas. I wouldn't go without my pistols just because of what might happen in transit. Even without intentional theft, the airlines have a high percentage of lost and misdirected luggage issues. If you're willing to risk that, theft is going to be a smaller risk.