[defrost]

What worked in Australia was the national unification of gun laws - Queensland, Tasmania, and the two territorries were aligned with the laws in the (then) bulk of the populated parts of Australia - NSW, Victoria, South Australia, and Western Australia.

The gun buy back was good deal to encourage people to turn in any old guns that they either didn't want to licence or were unable to licence (due to having a criminal record or the gun being fully automatic).

Having a modern up to date, searchable central registry of guns, ownership, and requiring every sale to be recorded is a major advantage for Australia over the US.

In Australia twelve years olds can join a gun club (with parental permission) and the majority of people can own a gun if they wish - subject to a record free from violence and a demonstration of competance and ability to keep and store weapons safely.

I'm in rural Australia and have some guns for feral control use.

My neighbour has a fairly decent assortment of guns and shoots ULR (ultra long range) targets at 5,000 yards.

Annual setup and test with initial flight path drone PoV: https://www.youtube.com/watch?v=7owwTz7Z0OE