You have an interesting setup there!
We have 2 Pelican 1750's which we use for transporting "traditional" rifles so I'm really intrigued as to how far I can go with them.
Regarding your top photo: I'm probably being dense but how do you keep the barrels on the top lid from impinging on the stocks on the bottom when the case is laying flat? Do you have some sort of thin foam layer you place in between?
Follow on question: what's that case weigh when packed like the top photo?
The case gets closed with the barrels pointed towards the lid. The foam insert containing the barrels sits on top of the rifle with the soft side down. I had it precision cut by a company that specialises in making such setups for photographic and movie equipment so it is all nice and tight.
As for the weight - total of approximately 24kg-53lbs. That’s with 3 barrels, recoil reducer in the stock and 3 scopes Nightforce ATACR 5-25x56, Zeiss 3-12x56 and Leica 1-6x24 so not the lightest of glass, ATACR itself is 1108g/39oz.