I'm sure your hunt has come and gone, but go to SavageShooters.com, Big Game Hunting, Is 6.5 Enough for Elk. On Pg 3, pretty far down, watch 6.5 Grendel vs. Buffalo. Continuing this very good discussion, let me say that my first African hunt was in my Hawk Custom Bullet phase. They are not hard, in fact so soft that they don't break up but just blob up and continue on their merry way. My PH was aghast, but everything I shot died very nicely, including the 300 lb warthog who was almost shot clean through. That was 300 H&H Mag, 200 gr bullet. Next time, I took a 30-06 and fired 181 gr RWS TUG, a very hard bullet. The PH was delighted, and they also worked very well - placement is everything - but one stopped in the heart of a Bull Eland shot broadside, or maybe just made one hole. Cleaning a Bull Eland is not conducive to finding bullets, and one of the guys might have figured it was good mojo and pocketed it. Same PH (Zimbabwe) said they were being urged not to let people shoot Elands with anything less than 7 Mag. If you are interested in big beasts, consider a 338 Win Mag.