Here what I did with 2 rifle StrongCase..... Took foam from back and spray contact cemented to a 1/2" birch plywood piece and I trap that at the ends with a piece of stiff foam scrap. I've bought a bunch of cases from Tom the owner (At least a dozen?) so I had him send a foam piece with another case as a replacement so I can go back to original if I want too. Then I put my hiking boots on either end and put bolt in a sock inside one boot and dump all my other kit in space left over. I own all synthetic type cloths and don't have to pack bulky cottons so I can fit 3 weeks of kit no problem between this case layout and carry on. Take some Merino to layer with if expecting cooler temps. I take whatever work boots I'm wearing at the time so not sure how special "safari" things will fit. I use these as soft case for on truck or when needed for road travel as req'd and fold one under the fore end/barrel of rifle; https://www.midwayusa.com/product/939460228/midwayusa-silicone-treated-rifle-and-shotgun-gun-sock When done with hunt I often leave stuff behind and use the space for souvenir type junk I have picked up along the way. Big believer in finding the system that works for you; I never have to start with domestic flights as its less than 2 hrs and I can be on direct route to J'berg; so packing some kit in with gun is not an issue for me, not sure how that works at other US airports. If I'm on 2 independent tickets like this fall from J'berg to Harare, I ask nice and they don't ask for any charges for being a bit heavy by a few kg's. Just my experience.