|Australia's "compulsory" gun buyback did not end with the|
government raiding rural shooting ranges and dropping off
checks as compensation
The practical effect of such a buyback in the united states would be much more muted. The best estimates suggest there are between 2.5 and 4 million semiautomatic long guns in the US. That's roughly 1% of the total gun inventory, rather than the 30% that such guns made up in Australia. Still, semiautomatic guns are used in a number of spree shootings, and high capacity magazines are almost always used. Buying back those magazines would almost certainly be worth it.