How ironic, I'm typing this whilst at the rifle range.
Australia has the strictest gun laws in the world imho.
Semi autos rifles and shotguns are illegal for most. Very few can have them.
To own a hand gun, there are many hoops you have to jump through.
Firstly for Vic you must have a firearms license of course. You must be a member of a club. You are issues with a provisional license for 6 months and within that time you must have completed a safety course and engage in a certain amount of traning and competition. Once you meet the requirements at the conculsion of the provisional license period, you can then purcahse a handgun.
In addition, you must complete a set amount of training and competition for a 12 month period. This figure increases if you own other handguns in different calibers.
Bottom line, those that posess firearm illegally obviously don't have to abide to the above conditions.
IMHO the issue around murder and gun related crimes are often occuring with illegally obtained firearms as opposed to legal obtained ones.
One has to just take a good look around in the community to see the abundance of illegal drugs that have made it's way to our shores. If it is that easy to smuggle illicit drugs into the country, would it be that easy to also smuggle firearms?