Here is a few pics of a 300 gr. TSX (.416 Remington) recovered from my eland last year. The first shot was a bit far back in the lungs (my fault), and in an attempt to slow him down, I tried another shot at him after he turned to run. This one was found in his chest, after entering his right ham...for about 7' of penetration. For animals this size, I think the larger caliber, the better. Of course a .308 will work under ideal conditions and ideal shot placement, but how often do we get those?