So, a 223 is terrible for deer but great for someone that really wants to kill you. Makes perfect sense.
Have your ARs. I choose elsewhere.
If you don't like the 5.56, blow it out to 6mmx45 and load it with the deer slaying 95gr NBT.
Or, you could just keep it simple and load the 5.56 with the 64gr Nosler Bonded Solid Base, or, if that's too modern for you, the 60 grain Nosler Partion. It doesn't take much imagination to really enhance their performance.
