Ok. I guess I assumed you were talking about nukes, when you said you wanted the round that does the most damage & gets 20" of penetration. The .30 Carbine vs 30-06 analogy also led me to believe you were talking about nukes. I do consider the original Norma load , 200gr JHP @ 1200fps, to be a nuke out of a 4.6" G20. Most of the other guys in this thread are talking about Underwood's HOT stuff. Maybe I missed it, but I don't remember seeing you say what load you actually carry?