I think they are more of a novelty item than anything, although I've never shot one of them. I do have a double barreled handgun that shoots .410/.45LC, and I can't hit the inside of a barn with the 45. The .410 will cause serious harm at close ranges, but then again, that's what it was made for. The barrels are partially rifled. Could be the rifle combo would be a real "fun gun".