The case will often be the cheapest part of a hunt involving an airline.... pelican or nothing.
My first pelican was a predecessor to the 1750, same length and width but a little deeper. Could pack a rimfire, shotgun and rifle in it and just barely clear airline weight. It went from Florida to Adak and everywhere in between, boats and planes of all variety. Heck it was strapped to the belly of an old float plane, and used for a bench seat on an airboat in the FL panhandle within the same month.
Few years back it was in a vehicle of mine that was stolen. Thankfully it was empty, about 3 months later it was found by a hiker at the bottom of a cliff. It appeared to have been thrown off the cliff by whomever stole vehicle (pull out viewpoint above where it was found) The hiker was able to look up the address on the case and returned it to me, had a broken hinge and a hairline crack in the seal lip. I called pelican about trying to source a new hinge and gasket for the seal. The case was old enough the hinge was out of production, without prompting pelican shipped me a brand new equivalent case (little bit shallower but has nicer features) air cargo 3 days later.
I'll never buy another brands hard size case. They made a good product, but the service and support made me a customer for life.