My favorite .458 bullet used to be the 400gn X bullet before they discontinued it. That bullet was always good for 5-6 feet of penetration even at .460 Weatherby velocities, so in looking for a replacement I tended to like the 550gn Woodleigh and the 450gn TSX, both of which shoot very well in the .458 Case.
Either or both, would be my choice for Cape Buff.
