I have no clue as to how to answer the OP’s question, but can confidentially say English laws regarding firearms and ammunition are Biden level retarded.
After hunting there and borrowing a rifle/ammo, my guide asked me multiple times to check all my pockets for any loose rounds before he dropped me off in London. He said that he, let alone I, could get in a lot of trouble if I went through security at Heathrow with a live round.
Their knife laws are equally as dumb.
I got greased out at the airport in Whitehorse for carrying an empty shell casing loose in my luggage that was not secured with the live ammo I did have.
The poor hormone deprived lady was frantic telling me it was ammo and would not accept otherwise. Her listening/reasoning function was down for the day.
