I am contemplating doing an elephant hunt in the near future. I realize that most people prefer a brain shot for Elephant, but in the case that a heart/lung shot is presented, wouldn't that make a much larger target? I also realize the Elephant could possibly run for quite some distance before succumbing to such a shot, but if placement was correct, the outcome should be certain.
That said, due to the large size of an Elephant, and the fact that solids would most likely be used, is there really a huge difference in effectiveness between a 375 bullet, vs something larger? Say 416, 404 or 458. I'm sure the bigger guns are always somewhat more effective, but on such a huge animal, they all seem relatively small bore when considering a heart/lung shot.