Quoted:
Good post as usual,I enjoy reading the results of your hunts/stalks/walks.It looks like the .223 has worked well for you.I know that has alot to do with the shooter and good shot placement.Alot of folks don't like the .223 for deer hunting but I see no reason this round would not work just as well for deer, do you?Most of our deer here in NC are not that big.At 18 degrees there you are just as cold as we are.
As is quite evident from all of Molon's outstanding posts on ammo performance and accuracy, first you absolutely must know your equipment - the rifle, the optics, the ammo, and your capabilities.
You've got to practice, practice, practice before you ever take your sights off of paper and head out into the woods to harvest game.
I never shoot anything unless I am totally confident that I can make a clean humane kill.
No matter what rifle, caliber or ammo you have, you don't just wildly shoot some hog or deer in the arse as it is running away.
That said, I am totally confident that I could kill any southern whitetail buck using the 5.56mm NATO Hornady SuperPerformance 75 grain BTHP in my weapon out to 200 yards with proper shot placement. I have killed many many hogs up to 500 pounds out to 225 yards with my current setup, only having to administer a coup de grace one or two times, the others were all DOA.
You absolutely have to know that when you pull that trigger for an instant, you had better have your knife sharp because you'll be spending the next four hours with it in your hands....
BTW, you also must know anatomy good too. I did manage to graduate from veterinary school over 30 years ago in exotic zoological wildlife and have had plenty of experience with a large animals and sharp knife. Unfortunately, that did not help me from taking a nice chunk out of my left hand with my Chicago Cultery butcher knife that I've been using these last 3+ decades while I was skinning this hog...... Ouchy Momma