i was surprised to see 45 cal 1911’s for sale given the restrictions on caliber in australia
So am I - I have a .38 precisely because I believed at the time that was the most I could get without a more specialised licence.
This is part of the genuine problems we have with the laws. They are sometimes really hard to navigate.
(I’m now comfortable with the 38, so I’m living with the situation - but I wish things were a lot simpler).