6 yards! Wow, you know they don't want to be your friend when they get that close.

I've only ever seen charges on DVD - Cape Buffalo and Elephant. Big bores and body shots aren't always instant stoppers. I've even see an asiatic water buffalo take 6 well placed shots (behind the shoulder) from a 9.3x74 (?) double before it fell over. The buffalo did run in this case, but the other way, and the shooter had to chase it.