My airline travel luggage/gun-case...
It has a handle and wheels, making it manageable, even for it's size. Fully loaded (w/2 guns, ammo, boots, camos, coats, hats, and vests) it exceeds the 50lb weight limit for most airlines (they'll still take it, they just charge extra). To keep things under the weight limit, I have a duffel in the top with the rest of my necessities (socks, undies, t-shirts, real shirts, jeans, etc.) that I remove upon arrival at check-in (same color and material). Without the carry-on duffel it weighs 47lbs tonight.
The combination lock gun-case is in the lower section. This and a backpack is all I can take this time. Big difference from last year.