I shot a broadside bull at 35 yards with a 300gr. TSX. The bullet was recovered under the offside hide and the bull died within 75-100 yards.
Wow, it looks like some good weight retention. I've been told cape Buffalo are hard critters to kill.
I've got to call BS on myself here: I took another look at this and realized that the photo I posted was of a Nosler E-tip that I shot an elk with last year out of a 33 Nosler. I don't know what I did with the photo of the TSX from my buffalo but, well, it looks about the same as this one.