On the left hand side of this article is a list of official reports from the Deputies that shot and killed all those animals in Ohio during the Exotic Animal Apocalypse. It's an extremely fascinating read. There were detectives shooting tigers with buckshot, and SRT guys shooting everything with M4s.
If I ever get to go on a safari to hunt the big five, I'll do my best to convince the government to let me take my AR instead of something larger than .375 caliber!
Hat Tip to Hell in a Handbasket.