With the Hot Core Speer 220 grain bullets, some AA2520, you can push them in the 2300 fps range according to men on another forum. These were chrono'ed results. Some were going even higher. Folks, that is a freight train. It was rivaling magnum cartridges that are surrounded by lore, with the energy it safely produces with these loads.
As a factory round or, as a loaded plain Jane bullet, you are going to look long and hard to find a harder hitting caliber for big game. In it's effective range, that bullet surface is so big and, the weight of them, equals hammertime. I've killed a lot of deer with them. FLAT. When you start pushing them, they become even more incredible on those through the body shots. It really thumps them.
I love the round. I hand load for it mostly but, still do shoot factory rounds out of one of the two I own. Both do great. Don;t let ballistic tales fool you. A bullet that big, weighing that much, delivers all of it's energy and, has lots more knock down power than those tables can take into account. Use them You'll love 'em. God Bless