Storm Case Scoped Rifle Gun Case
+1 on the Pelican case. I had one for many years carrying a work rifle, and it took a SEVERE impact in a crash. There was about 1/2 meter of crush into the trunk which impacted directly on the handle of the case. The armorer pulled the action from the stock, checked it all out, then re-torqued the action screws. NO damage to the rifle. This was from getting slammed sideways at high speed before going over an embankment into some trees backward and impacting the trunk (bonnet) next to the case handle ... after the offending vehicle landed on the roof of my car. Sturdy+++. The downside is the weight. With the silly weight restrictions by most airlines, you don't get much leeway on the case & rifle.
When I set up my rig to travel last year, I went with the Hardig Storm Case in the now discontinued Desert Tan. It is as well built as the Pelican overall, slightly less robust, but it has SIX latches plus a top handle and wheels that are VERY nice. As others have stated, pull out one layer of foam and pack fluffy clothing, socks, etc to fill the void. Just don't pack away anything non-replaceable, as the rifle case will be the FIRST thing lost....;)