Hawk,
O.k., got a question for you here...
When you say "transport" are you talking about moving guns by "shipment", i.e. like sending them somewhere or taking them with you on an airplaine?
Or are you referring to taking them out hunting with you in your vehicle?
I have some of the nice Aluminum ($pendy) Airlines Approved, drop a Tank on top of style cases as well as some of the cheaper plastic ones.
But I also love my "soft" cases, good quality lined Canvas, full length zipper, maybe made for a scoped rifle, or with a choke tube pocket on the side for a shotgun...
Those don't offer as much protection, but carefully placed in your vehicle take up so much LESS room!
They don't offer the protection against getting crushed or bent, but they do offer great protection against getting scratched or dinged.
I have friends who insist on carrying their guns in giant, hard cases.
We go on trips and half their rigs are FULL of big, bulky, awkward hard cases.
Meanwhile, while they're pulling, struggling, tugging, flipping latches, fighting for clearance for the case to open.
My case, behind the seat of my truck gets unzipped 1/3 of its travel, and out comes the shotgun or rifle...
I just can't see all that size and bulk.
Boyt makes really NICE soft cases. I think that Boyt even makes some for Cabela's, or else Cabela's has some made that look just like Boyt's...
Check those out if you can put your guns on the top of the pile, alongside of it, or behind a seat or in a rear trunk.

They only cost ~$50.