An elephant would be way tougher than a buffalo. I can't remember how thick an ele's skin is, but when I dicected a rhino, the skin around the vitals was about 5inches thick. I've seen an ele run through a thorn bush with 6inch thorns that would give the toughest tyres a puncture. It didn't even leave a scratch on it. I would say that it would be all about penetration Marty. Super sharp broadhead, heavy arrow and alot of prayer when you hit it. I honestly can't see you getting a pass through on an adult elephant I don't think getting a shot will be hard, it's after the shot that the real problems start........