I made four hunts in South Africa and Namibia. The only failure was scope failure on my second trip. That was "operator Error" in that I tried to make a 340 WBY work on an ultralight Mountain rifle with a KDF style muzzlebrake. The sudden "brake" was too much for the first scope ( a Leupold 2.5x8 VXIII 10 days before leaving US), replaced it with a Zeiss 3x9 conquest. It shot fine for zeroing here, etc. Upon arrival, it made it through checking zero, then went wonky. I managed to take a Blesbuk, Impala and a zebra before it utterly failed to hold zero. I finished the Namibia hunt with a borrowed 300WM. Iron back up sights wouldn't have made much difference as Namibia required some pretty long shots, I took a few out close to 400yds, which is very far for me. Have fun though Pard!