Ripp

You are spot on.

The only problem seems to exist with people that cannot follow a simple set of instructions.

either take the factory ammo boxes or your handloads in an MTM type plastic case, stick a piece of tape on the lid to stop it opening.
Put that lot in one of those small ally "briefcases" availible in hardware store 8x6x4 will do as you can only take 5KGs (11 lb) max anyway, lock it and put it in the checked baggage ie suitcase, duffle etc.
Put your firearms in a airline aproved ally or plastic case and lock it. Put your knives, leatherman etc in there as well and yes the scope also because.....acording to US state dept export regs a rifle scope is a "Firearm Part" !! AR members take note.

Don't leave spare rounds in the pockets of your clothes. Guess how I know that

Put a copy of all relevant paperwork tucked into the lining of the case. It is so much more convenient if there is a query.

Steve....

If flying into Zim becomes a real problem, will it be possible to fly into SA apply for a permit there and then drive into Zim getting a Zim permit at the border ?

Regards