Hey Arthur,maybe they are giving amo speeds on the compound bows and IBO speeds on their rifle bow.Love the way manufacturers can twist things around to suit their advertisement neesds.



Secondly,how stable can an arrow traveling over 400 fps be when it is only 16" long.Looks like a mechanical only rig.



BUT,I think it would be fun to use during rifle season.I can see all the rifle hunters at deer camp now.What the %$%^ is that thing.