This one is pretty good ![Evil >:D](https://www.eevblog.com/forum/Smileys/default/evil.gif)
Note that in the UK, these are technically a section 5 firearm with a mandatory jail term for possession ![Scared :scared:](https://www.eevblog.com/forum/Smileys/default/scared.gif)
I'd like to think you would just be told to destroy it there and then if caught with one, but don't fail the attitude test!
No, probably not a section 5 prohibited weapon (smooth bore, single shot, long enough barrel, not emitting a noxious gas or liquid - unless you use a can of
Coca-Cola), but almost certainly over the muzzle energy for a permitted airgun (12 ft-lb, 16.3J - so a muzzle velocity of 9.79 ms
-1 for a 340g can. My guesstimate from the video = 60 ms
-1). So you'd probably just need a standard firearms licence to possess one, possibly just a shotgun certificate (can't remember if the shotgun definition requires a mandatory choke and I'm too lazy to look it up) - I'd love to see the licensing sergeant's face if you submitted an application.