I know they will all kill, especially anything in the lower 48 states; its just they all look tiny next to a 4 Bore...but then i look at the 4 Bore rifle and think it looks almost mutant. THATS my quandary, I want a large caliber but not a mutant size rifle. I tell myself, maybe the rifle isnt as big as I think it is AND maybe the 72cal or 8 Bore isnt as small they look next to the 4 Bore.