The real issue here is how available is and will be 375 Ruger ammo in Africa. The PH's aren't going to run out and buy a new Ruger to replace their 375 H&H.

But more Americans will be coming to Africa with a 375 Ruger rifle. Ergo, the demand for 375 Ruger ammo will be there.

Seems to me a PH may want to buy a box of 375 Ruger ammo to keep on hand for present and future clients.