Lots of shooters (and casters) here in Australia. Less restricted than the UK but much more than US
or some European countries. More restrictive than NZ.
All states require the person to have a firearms licence and have attended some form or safety course or assessment ranging from paper only (VIC, NT) to practical (South Australia).
There are different firearms classes and you get licensed for each class as per your interest/needs
A - rimfires, singe or two barrel shotguns, air-rifles, paintball, muzzle loading shotguns
B - centrefires be it bolt, lever, pump but not self-loading. Blackpowder cannon
C - Semi automatic rimfire rifles (magazine capacity no more than 10 rounds);semi-automatic shotguns(magazine capacity not more than 5 rounds);pump action shotguns (magazine capacity not morethan 5 rounds);tranquilliser guns.
D - Semi-automatic rimfire rifles (magazine capacity ofmore than 10 rounds);semi-automatic shotguns(magazine capacity ofmore than 5 rounds);pump action shotguns (magazine capacity of more than5rounds);semi-automatic centre fire rifles.
E -Machine guns,tear gas guns or projectors;shotguns or rifles with a length of less than 75 cm measured parallel to the barrel;cannons (which are not black powder ball firing);mortars;bazookas;rocket propelled grenades,large calibre military firearms designed to fire an explosive or projectile.
H- Handgun. With pistol licenses there are restrictions on mandated club shoots you must attend. You can only shoot on a club range.
So a good deal of firearms varieties can be owned, if you have the correct license. C and D are either for farmers or professional pest controllers. Some dealers and collectors can have pistols and semi-automatic or even automatic weapons. There is even an Australian made AR15
manufacturer.
Without any statistics however I would estimate 90% of Australian firearms owners currently have A and B only with some pistol shooters as well.