Yup, I have seen them advertised, but never saw one in person. I would think it would be more of a conversation piece than anything. I know I wouldn't try to bring down a buffalo with one :grin: I figure with a full load of something like 35 or so grains that the muzzle velocity might be around 900. I would like to know, just to know, but I like the short barrels for cowboy action and that is all I shoot.