CASA Bullshot
Seeing as Goobledock is busy I will step into the fray. CASA have no authority to regulate the use of firearms apart apart from when it is done from an aircraft. They could express their concern over the location of a range, little else.
Pistol and shotgun ranges, surely they jest. The only way a pistol or shot gun round will travel 1000m is if you dropped it from that height.
Target rifles, different story. I have a .308 target rifle and have fired it regularly at a range of 900m. That said our range is 100km north of Brisbane and has a mountain behind the stop-butt.
Personally, if CASA paid any heed to the level of criticism they receive on this forum they would not go anywhere near a loaded weapon.