Apparently handguns are available in the UK provided they have a barrel longer than 12” and 24” overall or are cap and ball percussion revolvers.
I found one Cowboy Action Shooting club in the UK, and wondered how they met the requirement for having 2 handguns necessary for competition.
http://www.shootersofthecastironshore.com/index.html
Not sure how they’d meet the rules - will chack out the link. I knew that the unfeasibly long handguns were legal, not seen them in use!