Not sure how many may have looked at a post about the Verney-Carron Speedline rifle and the Veloce shotgun, they were designed to get around pump and autoloader bans, they are known as a linear action, the Northern Territories in Australia just put in a very quiet backdoor ban on that type of action.
Go to about the 6min mark in this vid and they are shooting it;
https://www.youtube.com/watch?v=dMdWeMoASkU