Australia banned assault-style weapons. There was a limited buyback of illegal weapons which took 20 per cent of them out of circulation.
"A key component of the 1996 measure, which banned the sale, importation and possession of all automatic and semi-automatic rifles and shotguns, was a national buy-back scheme involving the compulsory forfeiture of newly illegal weapons. Between 1996 and 1998 more than 700,000 guns were removed and destroyed. This was one-fifth of Australia's estimated stock of firearms."[/quote]
A few comments here...
1. Automatic weapons are already extremely difficult to get and have been regulated since the 1930s. I don't know of any mass shootings that used them.
2. Looking at the statistics of ALL rifle and shotgun deaths in the US, the numbers are relatively small compared to handguns.
2005: handgun homicides 8,478; other guns 2,868
So the Australian-style law would have no affect with regards to handguns, which have been used in many mass shootings, and in fact were in the possession of the Sandy Hook shooter.
3. Buying back 20% still leaves 80% -- millions of firearms -- available to the evil deranged.
4. Handgun registration. How would this apply to the millions that already exist? How would such registration prevent the evil deranged from obtaining one of these extant handguns?
My intent here is to come up with workable solutions. Unless I'm missing something here, these aren't going to have much effect...
Here is a chart showing all the mass shootings in the last 30 years (defined as 4 or more victims.)
The vast majority used handguns. The Australian law would have zero effect on those, and on revolvers. In addition, the 'assault weapons' category is not defined. It may include legal semi-automatic rifles, such as was used at Sandy Hook.