Can I take a small air rifle over in my shipping? Will it cause any problems in customs/ Does it have to be registered? can anyone help

I've just emailed customs about that. Will let you know the answer, in the meantime, check out this link

http://www.customs.gov.au/site/page.cfm?u=4372

Aus doesn't distinguish between air rifles and rim fires. They all need a license. I had a Thoben Rapid 7 in the UK and looked at bringing it to Aus. Wasn't worth the hassle. Also, silencers are totally illegal here.

Mike.

You'll find you can't ship it without gaining a licence, something you can't do without joining a club or having sufficient acreage to justify owning a rifle. While it's not impossible it certainly is made very difficult red tape wise. I sold all mine before we left.
Here, as an other poster has said no distinction is made between rim fire or air rifles they all need licencing. Just to keep a licence you have to attend a gun club X amount of times per annum if you fail to attend sufficient practice days your licence is revoked.