The wife of one of my friends shoots a 7mm-08 (may as well say identical ballistics to the 7x57) with Norma brand "Oryx" bullets, hand loaded. I cannot remember if they are 156 grain or 160 grain but, she has taken a number of African animals with it, out in the open Kalahari and in the more forested / brushy areas of Limpopo, South Africa, including large tough ones like gemsbok and zebra, among others. My friend tells me he is very happy with the performance his wife is getting from this bullet. I have a 7x57 but have not taken it to Africa (yet!). However, if I were leaving today on safari with it, I'd take Swift brand 160 grain A-Frames, whether planning to hunt more open geography / sparse foliage, or in the thick thornbush either one.