And please give an example of the last time an "automatic rifle" was used criminally in the US.  (The bump fire stock, approved by ATF during Obama's tenure, doesn't count-it does not make a rifle "automatic"). Hint: the Al Capone/Pretty Boy Floyd/Bonnie and Clyde era would be a good starting point in your search. The reality is that Europe and Asia have the problem with criminals using "automatic" rifles. Not the US.