I know the last time the Aussie military looked at a rifle, they insisted on it being able to mount a bayonet. On the awful Steyr AUG or Aussteyr.

I thought that wasn't very controllable under auto fire in the video as well.

The shooter was able to control full auto fire in an FN FAL though.

I was thinking what military rifles have been used in Australia. As a guess started with a Brown Bess, then a Martini Henry, maybe something in between? Snider? Then the SMLE from the Boer War to the Korean War. The SLR in Vietnam. Plus some M16s. Then the Aussteyr.