It's funny you mention Pelican, I've been using them for years in my day job as a press photographer. I've travelled all over the world with my camera gear in Peli cases, always been fine. Including my 400mm 2.8 which is more expensive, bulky and more breakable than a rifle and scope combo.
I get a trade discount on pelican cases from the Scottish Press Photographers Association, which i am webmaster of. I managed to get them to extend my discount to AirGunScotland.org and if any of you join up (FREE) you can get our discount, no probs. I got a 1720 recently and it was about £175 incl free courier to my door!