controlled_feed,

As to the auction you referenced, the rifle is classified as "antique" and requires not export permit. The seller says in his listing that he will ship overseas. What's the problem?

Any antique (pre-1899) firearm is not subject to regulationin the US. Your worry would only be on what it takes to import it to Oz, which I don't know.

I just last month exported an antique shotgun from the US to a buyer in England. No problems at all. He informed me just this Monday that he had received the gun through English customs.

Curl