Staying with a chambering in the CZ550 where both the 458WinMag and the 458Lott can still be fired, what is wrong with the 458 3"Express? According to a Kiwi hunter here this chambering is just the ticket for elephant based on his experience with his CZ550 that he has transformed from the original 458WinMag through 458Lott to the ultimate 458Express, taking elephant with all three.