Well of course they suck compared to a 300 magnum. You didn't think just because it had a neat name it was going to be some kind of super magnum did you?

It shoots 300 - 600 grain bullets but must fit into an AR so there isn't a whole heck of a lot of room for powder. Basically it's a 45-70 but a case designed for an AR.

It is a short range hammer of Thore for your AR.