IMO, any elephant that moves away after the first shot deserves every effort by both the hunter and the PH to put in as many good followup shots as is humanly possible in the effort to prevent prolonged suffering. The true sportsman/hunter must make EVERY effort to prevent prolonged suffering of the game animal he is attempting to kill, otherwise, he is something less than a sportsman. This particuliarly true of game as intelligent as the ele. Attempting brain shots on game that is moving away is also not a good idea IMO. I am only a beginner with 3 ele (all decent-good mature bulls) but have not lost any, yet, using this philosophy.