Hunting Asiatic Water Buffalo Australia

First bull from today - proper Old Man Nganabbarru - above the culling spring. My wife and I heard a little noise above us, so I scrambled up the bank and shot him quartering-on at about thirty metres. He dashed about forty metres and tipped-over dead. 475 grain CEB Safari Raptor doing 2330fps (need to keep developing the load to waltz a little faster).