Just got back from a safari and shot my buff with a 450NE. I also took a really nice eland and sable with my 9.3x74 double with 300 gr swift A-frames. I would hesitate to hunt cape buff with a 9.3x74R with the understanding that the 9.3 is a killing round like the 375H&H but not a stopping round. The eland I shot was at 85yards and the bullet went through both shoulders heart and lungs. The old blue bull went 10 yards into the bush came right back out and fell over. From bang to it being on the ground was like 10 seconds. With buff you really need to make sure of your shot placement don't care if it is a 9.3 of a 600NE it is when they get wounded with a non fatal shot that they transform into the legendary Black Death.