C Roy
You are not going into combat zone. You won’t be out living like an insurgent.
You need a rifle to deliver one or maybe two shots precisely. I would use your 338 which you say you shoot well. Load 250 Nosler Partitions to 2650-2700.
I know a very experienced PH who prefers that his buffalo clients use that combination over all others, even over the usual recommendation of a 375. What you need is a rifle/cartridge combination that helps you place your shot with precision. Save the money and use your 338. You will keep it and it will remind you of your hunts.
I would consider the TTSX as well or the old 230 Fail Safe if you can find some.
Last edited by RinB; 08/31/18.