Hi Terry,
And welcome to the greatest forum in the world.
Much of the Limpopo District is swarming with game.
As long as you have chosen your safari company well, you will be amazed at the quantity and diversity of wildlife there.
I’ve only been to Africa a relatively few times so, my opinion is not intended as the gospel.
That said, my experiences hunting that part of Africa has left me with the impression that the perfect rifle for hunting eland to duiker in Limpopo conditions would be a bolt action or single shot, with a sturdy 4x scope, (or a low powered variable scope, if you are not a clumsy oaf who can’t remember to turn it down in heavy cover, like I most certainly am).
Such a rifle would serve you extremely well there in any of the following calibers, not necessarily in this order:
.30-06 / 220 grain.
8x57 Mauser / 196 grain.
.338-06 / 250 grain.
.338 Winchester / 250 grain.
.35 Whelen / 250 grain.
9.3x62 Mauser / 286 grain.
9.3x74R / 286 grain.
There are of course others (you can never go wrong with a .375 H&H) but these listed above seem as if they’d be perfect “in the thorns”.
Incidentally, I do not prefer hollow point bullets of any sort (erratic performers) and definitely I do prefer old timey lead core JSP bullets in the weights shown above for their respective calibers (and with plenty of lead showing at the business end of said bullet.)
Furthermore, in such “woodsy” conditions, I also prefer blunt shaped bullets - round nose or flat nose.
Be all of that as it may, your 7 millimeter magnum would however work well enough with 175 grain A-Frame bullets, if not a bit rough on meat and skins (for taxidermy).
I seriously doubt that you’ll fire any shot over about 200 paces, if that far.
And very likely you’ll be getting shots at critters often around 25 to 75 paces.
Anyway, if your PH recommends you bring your .450 bushmaster, then bring it.
But if he or she seems doubtful, and you don’t want to buy another rifle, then I’d have a look at either using that 7mm of yours or just renting a rifle from the PH, if possible.
Africa is all the excuse I’ve ever needed to own some cool rifles.
So, if you’re of a mind to, do have a look at some of the ones I listed above.
gunsinternational.com is a great place to find a wide selection of such rifles.
Either way, you’re going to turn a double back flip when you see Africa.
Cheers,
Velo Dog.