"Similar in Australia, farmers are allowed to own rifles."
Not really. Farm workers in Australia are allowed to own "class C" firearms which are "Pump-action or self-loading shotguns having a magazine capacity of 5 or fewer rounds and semi automatic rimfire rifles" ...
I wouldn't really characterize a rimfire weapon as a real rifle and I am not really sure how useful that is, other than the raccoon work that I mentioned above. I wouldn't attempt shooting foxes or coyotes with a .22.
The Australian gun laws are amazingly restrictive for a country that large and wild and varied. I would feel quite hamstrung as a farmer (or even simply a resident) in a remote, rural area with only a shotgun and/or a .22 (the typical rimfire weapon) ...
Actually, a re-reading of the wiki page[1] suggests that I misunderstood - it looks like bolt action rifles are "class B" and, although it's hard to tell, are available to regular folks in some shape or form.