And I also agree that the Hornady is a better bullet than the Powerbelt, at least ballistically, not necessarily performance wise on game, because I wouldn't know that without more information, or by testing them myself.
Anyway, it looks like the Powerbelt is capable out to 150 yards, by those numbers. Of course they are using 150 grains of Pyrodex, which is more than I would use. I don't like to go over 100 grains. But then I also am not comfortable shooting much farther than 100 yards with open sights.