are you sure gary? you mean you don't need a
"SUPER WHIZBANG MAGNUM"
hehehe
it's not best to have a caliber that will "drop it right now"

yep....i'm with gary. even a lil ol 80gr 6mm bullet in the spine will drop it on the spot......or a big ol 180gr 30 cal thru the neck. even a few bullet fragments from a high shot with a greatly expanding bullet can put it down quick.
......and then that "super whizbang magnum" can let one run a ways, depending where it connects. a lot of times they are running dead.....they just don't know it yet.