I've moved away from the idea of a minimum energy threshold to kill game. I prefer to focus on impact velocity and bullet performance, my experience has shown that a high impact velocity and "appropriate" bullet performance (mix of expansion and penetration) with good placement tend to have the most dramatic effect. "Appropriate" is game-dependent, I don't need 30" of penetration for a whitetail and would trade for greater upset on impact. On an elk, I think I'd go a bit bigger on the frontal area and use something intended for deep penetration.
I've got some 95gr Hammers on the way for my .257 Weatherby, should be cruising along in the 3600 fps range. Should be an interesting test on whitetails.
I've got some 95gr Hammers on the way for my .257 Weatherby, should be cruising along in the 3600 fps range. Should be an interesting test on whitetails.