HIYA,
RE. main rule,
Yep, reasonably new to sport (2 yrs) and currently harassing a mate from work to get down on a weekend and have a shot as he is a keen game shooter.
RE. calibre,
I'm currently using a 20mm depleted uranium round with an armour piercing ballistic tip cunningly disguised as a .308 155g HBC so I can shoot F standard, but keep that under ya hat for now.
However today I had my first Aust. Match Rifle shoot using 208g AMAX @1000 yards and considering I've still got a smile on ma dial I'll be doing a lot more of it, as with the experimentation of new calibres so once set up with a new rifle supporting the appropriate twist rate I may do more of the F-Class Open as well as the AMR, but at the moment, in Tas we have the AMR Championships coming up in March so will get that out of the way first.
But yes up until now it is just the standard .308 HBC's.
Cheers
Lee