You are more than welcome to your soapbox. I hate hunting with people who make an animal suffer. My uncle would take his rifle, 5 cartridges, and head out to the blind. We would pick him up with 3 cartridges, 2 deer and his rifle. If you heard a shot from his direction, you knew meat was on the table. The absolute most lethal shooter I knew was a small framed lady with a Remington 600 carbine with a 4X scope, chambered in .222. She never took bad shots and every kill of hers I saw was drilled perfectly.
The "Rodney Dangerfield" of cartridges, the lowly .243 has become one of my favorite light cartridges. Great for whitetail, superb varmint rifle as well. I would be hesitant to use it on anything over mule deer sized game. If you take the time to reload .243 it really extends it's capbilities.