There's one about every 6 months out in the western suburbs in Sydney, which I go to just because there is nothing else, lol. Unfortunately WITHOUT any of the full-on semiauto drool factor that I imagine exists at US shows
Lotsa old .22s & SMLEs...hunting slings/game callers, old bayonets and very few pistols (as there are very few pistol shooters in aus). One stand had brand-new Tikkas which were nice; no better price than the shops though. The usual assortment of WW2 memorabilia, which is always interesting.
But yeah, it always leaves me largely dissatisfied