It is plenty of everything out to 500 yards - assuming you consider that long range :--) I shoot one (recent convert from a double thumper magnum) using hornady light magnum 150 grain bullets out of a 24" barrel and generate 3,017 fps (rifle is a Weatherby Vanguard SMOA). I have made several 400 to 500 yard shots without loosing an animal. Also, you might enjoy the following article which coverrs everything from how to sight your long range rifle; to the retained energy factor; to the pentration factor; etc.
http://www.kifaru.net/posimag.htm
P.S. - if you read the article, we have been sighting our rifles between 5" and 6" high at 100 yards for years, so this is not a new concept for us.