Kinda like how air guns are substitute for actual firearms over there now? I've never heard of a .380 shotgun, sounds like it would be a good training took if .410 wasn't a thing.
Well, couldn't find a .380 shot shell but there were several 9MM rounds. .360 Center fire ( Similar to the 9MM ), 9.1X40MM, 9MM Rim Fire and last but not least the 9MM Center Fire. The British liked to use small low power firearms as " Rook" guns or also called garden guns I believe a Rook is a Blackbird ( too lazy to look it up ). Done went and looked it up, a Rook is a type of crow.
Saw a really cute Benelli 9mm autoloading shotgun at a pawn shop in Florida back in the 80s. They wanted $95.00 for it. Wish I had bought it now. Talk about a neat little shotgun!
I've never heard of a .380 shotshell, but I have heard of the .360, which is apparently the British version of a 9mm rimfire shotshell that was popular in Europe.
Don't know why you'd need that thing. A Roger American Rimfire or 10/22 would do that task 10x better and cost 10x less, ptobably. Plus you're not restricted to 2 barrels.
In our gardens and fields and shops, if there's one varmint, you can almost bet there will be more. When we do have varmints. I'd also feel a lot better carrying around a $350 rifle that performs the same if not better. One scratch on something like that thing. ...phew. that'd be more of a wall hanger than a legitimate tool.
My question, why take the chance with two barrels when you can have 10 rounds in a magazine?
And that folks, is why they make different flavors of ice cream, of course I have never under stood the reason of making any flavor other than Black Walnut or Coffee.