Don't really understand why someone would doubt the ethics or effectiveness of taking elephants with a bow. It has been done many times, and while some animals have been shot by backup rifles most expire quickly, and all expire quickly that have been hit well in the vitals. Part of the challenge/attraction of the experience is the risk associated with an animal that could crush you in a blink in those moments before death. I think for some people, it is a perfectly acceptable and challenging thing to do. For most hunters though, the risk/cost/challenge would be far to great and they would never think twice of trying. Knocking a fellow bowhunter for attempting to harvest ANY animal, especially animals that are outside their own abilities to chase is childish. That would be like squirrel hunters telling deer hunters they were foolish or unethical to hunt deer! Sure, if you chased deer with squirrel gear... but there are bows, arrows and broadheads designed to take elephanst and other large dangerous game that makes that type of hunting just another facet of our great sport.