Yes, this is a very interesting subject and one many are not aware of.
Part 8 of the Firearms Regulations 2006 relates to the approval of shooting ranges. Specifically Clause 85 (1)(a) which states:-
85 Offences relating to shooting ranges
(cf 1997 cl 71)
(1) A person must not:
(a) operate a shooting range unless it is an approved shooting range, or
(b) operate an approved shooting range in contravention of any condition to which the approval is subject, or
(c) allow any other person to use a shooting range unless the shooting range is an approved shooting range.
(2) A person must not use a firearm on a shooting range unless the range is an approved shooting range.
(3) A person must not possess or use a firearm on an approved shooting range in contravention of any condition to which the approval is subject.
The only exemptions to the above relate to Police, Corrective Services, some Government agencies and the military.
This is the law in NSW. Laws in other states vary. It is a little grey what a "shooting range" is but firing excessive rounds, at clay targets, with a group of other shooters would be pretty much a range IMO and therefore illegal unless that range was approved.
Firing a couple of rounds to test a gun, on your land, in a safe manner, may not be deemed as a shooting range.
If in doubt, always best to check with the State firearms registry.