I would add that you probably should not use any match bullets, as the jackets are made for punching paper not hunting. Here in Texas lots of deer, mostly does, fall to the .223. The 55 grain Nosler BT has worked for me many times, and it has a heavy enough jacket to stay together most of the time. The biggest problem with using the .223 is many times you get no exit hole, and hardly any blood trail. In heavy brush and high grass, you will lose a deer even with a near perfect shot. Keep your shots under 200 yards, and you should have no trouble.
Forget the headshot. Small target, and a slight miss ends up bad. They don't bleed either. Much better to double lung them, more room for error, and hardly any meat damage.