I saw one of these interesting little NAA .22 magnums at the Pawn Shop. Sort of commented on its curios nature. The place was pretty empty so the guy had a minute to chat. His thought was that this little guy would be best suited for a tackle box or that little inside pocket in a pair of waiters. Small enough to easily tote around with enough barrel to accurately hit a copperhead at a safe range. I personally would load it with .22 mag shot shells.
Have absolutely no desire to own one of these but it was curious enough to see a long barreled super tiny revolver that I felt like talking about it.