Hi....I don't think the Aust police are as Draconian as that. There are lots of old firing ranges in Aust that are now on privately owned land. I used to go to one of them in Brisbane and there were lots of shells there...Shrapnel, AP and Smoke. The owners of the land used to pile the shells up for me to collect whenever I was passing. Just speak to the cops and I'm sure you will have no problem. I know there probably ARE laws that are strict, but these are only there to be used in the direst cases. They need to be able to throw the book at you if the situation arises. What about the scenario of a shell, found on private land and given to you by the owner ?? Surely acceptable ?