I used the factory steyr connect travel case for the old Steyr. Very small and convenient, and that was inside a custom fabric slip. Inside that, the rifle was sleeved in bubble wrap with Polystyrene crush pillars. Bit of an effort really but held up well on the trip around the world.
The new Steyr has a very flash looking large case with it that has it's own airline locks etc built in. Might be based on a Peli or similar with the Steyr logo added. Not sure.
Will probably buy stiffer foam to put in it through for the trip to Germany next year.
"Astrid" - Steyr LG110FT / Falcon T35S
"The Bangstick" - Falcon FN19 .25 FAC / BSA 8-32
Too many tinker projects, not enough working rifles.