Gday Moshe, We can have high powered rifles here but the requirements are restrictive.
First you have to do a safety test and you have to have a secure rifle safe bolted to the wall.
It is then required to apply to join a club or you can get written permission from a land owner. Most land owners are only too happy to rid their propertys of wild pigs, roos, rabbits and deer. Common calibers are 308 winchester, 270, 223 ,22long rifle .
The government is opening up a lot of crown land to control much of the imported vermon and its not very hard to get a licence to shoot in those areas.
The regulations are just a pain in the butt
Their are plenty of target rangers here .