Another vote for the .270/Nosler 150gr Partitions on African plains game.

I took a Win .270 and .338 to So. Africa last year and killed 11 animals (no eland or buffs): 10 with the .270, and one with the .338. The .270/Nosler 150 PTs worked so well on even the larger antelope that I didn't bother with the .338 until the last animal on the last day.

Next time I'm taking just one rifle, a 7 STW. It should be about perfect for longer shots on all African plains game (except buffalo and eland).