and have the pictures of kills to prove it. You don't need to pull head shots on deer with 223, not even with 55 gr ball and 10" barrels. Yeah, they might run 100m with such a hit thru both lungs, but unless it's after dark, or at dusk, you''ll see them collapse, in nearly all terrain in the US. In thick jumgle, either fire from a tree or take the head shot, cause ranges will be very short. In fact, in the jungle, ranges will be so short that you can brain the deer with the .22 unit, no problem at all.