We are 3 for 3 one shot kills using the 223 with match bullets. 2 whitetail does with the 73eldm for my daughter and one mule deer doe with the 77tmk for my son. I was skeptical but after I killed an antelope at 400 yards with the 77tmk I figured the kids could do it and have less mental stress about recoil. They love to practice with the 223's we have in the summer so we use them in the fall now too.That's why I'll be using my AR on some does this season to test out the .223 match bullets thing myself before my kids old enough to hunt.
Jay