I live in Australia and I can tell you the gun buy back scheme was highly successful.
"The United States has the highest rate of private gun ownership of any developed nation, at nearly 89 firearms per 100 people. It also leads overwhelmingly in the number of firearm deaths.
For every 1 million Americans, there are 29.7 homicides by firearm each year, the Human Development Index reported.
Switzerland, the nation with the next highest rate, has 7.7 firearm homicides per million people, while Australia, which saw its gun death rate plunge by more than half since 1996 when it tightened gun laws, has just 1.4 firearm homicides per million."
I live in Australia and I can tell you the gun buy back scheme was highly successful.
"The United States has the highest rate of private gun ownership of any developed nation, at nearly 89 firearms per 100 people. It also leads overwhelmingly in the number of firearm deaths.
For every 1 million Americans, there are 29.7 homicides by firearm each year, the Human Development Index reported.
Switzerland, the nation with the next highest rate, has 7.7 firearm homicides per million people, while Australia, which saw its gun death rate plunge by more than half since 1996 when it tightened gun laws, has just 1.4 firearm homicides per million."
http://www.abc.net.au/news/2015-08-28/a-look-at-gun-violence-laws-in-america/6731234