Rookhawk,
Sorry to hear of your woes in transit, through the anti-firearm / anti-hunter / anti-freeperson's gauntlet which, is today's "politically correct" airline industry.
In 3 out of 4 trips to Africa, I have brought my own rifle resulting in my growing progressively more annoyed each time, of the constant hassle / bullying and attendant stress from bringing a firearm with me (British Air treated me like garbage over this very topic - they have been my worst experience, within my African travels so far).
Being a shade tree rifle enthusiast, it is possibly more difficult for me than it is for "normal" hunters to use someone else's rifle (I know you are a collector / enthusiast as well).
However, leaving my rifle behind, back in my home country, is what it has come down to for me these days.
I've used a PH's rifle during one trip to Africa and, it was a decent one (Brno Mauser / Zeiss scope), had a great time.
Today, I will not bring a firearm to Africa any more but instead with a smile, I will simply spew bald face lies into the face of anyone connected to the airlines who, stupidly asks what I plan to do in Africa when I get there, etc.
Furthermore, now I will only book with a safari company that offers for rent, a rifle suitable to my taste.
Doesn't have to be a London Best grade (since I am but a simple blue collar income type, in the first place).
However, I feel it is definitely reasonable to ask that, any hunting outfit in Africa provide for their clients to rent - a humble Mauser of some sort, chambered in an appropriate caliber and topped with a quality scope, in sturdy rings or, perhaps if elephant is the quarry, well regulated iron sights (not on my budget unfortunately).
One of my friend's that has gone over twice with me for antelopes/warthog, etc., has never brought a firearm but, has always used his PH's rifles each time, with very fine results (one in 7x57 / 175 grain and one in .30-06 / 220 grain.)
Anyway in synopsis, I will avoid the discrimination and bullying, by leaving my rifles at home and lie to those airline's a-holes by claiming "I'm just another tourist who is going on a photo safari".
Cheers,
Velo Dog.