You should just go to the Federal web site and compare their HE load to the same bullet in regular. They will have FPS, Ft. Lbs, and trajectory data you can compare for various distances.

As for how it shoots - you really need to shoot it in your gun to find out. I've tried a couple high energy type factory shells in my Win M70 30-06 and so far none have shot great - not horrible, but just not as tight as regular loads. Like 1.75-2 inches at 100 yards instead of 1-1.25. I've tried Federal HE and Hornaday light magnums.

Just for fun, when you look at the data on their web site, take a look at the power and trajectory the HE delivers at your personal maximum shooting distance and compare to the regular shell with the same bullet. That way you can decide if the HE will actually improve your hunting performance. I'd like to squeeze a tad more down range performance out of my 30-06, but like I said, so far, I haven't found one that works for me. But at fairly conservative ranges, like 200-250 yards (which is really the max I can shoot well), it really doesn't make a difference in my ability to kill a deer or moose, so I've settled on premium-grade but normal energy loads that are accurate in my gun. So the accuracy is more important in my case. I'd use the HE if it was as accurate though because why not have a little more power?