Spinsail has reached a very logical conclusion as a result of his search for an answer to the 60 yr old question. I would add that Good bullets be they jacketed or cast ain't cheap. I have limited experience with hard cast hunting bullets but have found the good stuff as expensive or more so with a decent jacketed bullet. I remember the rather heated discussions on jacketed vs cast as well. I don't think there is a black and white answer. No bullet performs the same all the time on all game. As Whitworth pointed out it is more of a decision of which bullet for what you are after. Just like which caliber is better than the other.