Not sure about Australia but. A friend went to Africa with a big flintlock to hunt ( He took a cap buffalo with a homemade 20MM flint lock) He couldn't fly with loose powder so he bought it there. He said a 1 lb can of goex 1F was $95.00 and a half days time in paper work and run around. And He did take a nice cape with it. This would have been late 90s or very early 2000