I flew through Sidney and on to Darwin. Not only do you need an import license to get a rifle in, you need an export license to get it back out. When we were flying home from Darwin and back to Sidney, we showed up four hours before our flight to have time to get the permit, However, the local Police hemmed and hawed then punted on our export license and told us to get them in Sidney. We had to go from the Domestic Terminal to the International and collect our baggage since we couldn't check through to Houston because of the lack of an Export Permit. Collected bags headed to International and Police Checkpoint to get Export paperwork and was told it would be a minimum wait of two hours. Missed our connection to IAH. Rerouted later that day to San Francisco. San Fran wasn't expecting our guns on the plane so that threw TSA into a tizzy since we had to go to Customs as first POE to get them logged and then back to TSA to check them to Houston. Almost missed that flight... needless to say it was a mess brought on by the Police at Darwin that were too lazy to get our export permits a day or so before...
Never again.