Well over the years I have taken at least fifteen deer with the 223/5.56. Mostly I have used either the 60 gr. Hornady HP flat base bullet or the SP version of the same bullet. Most were DRT with neck hits in front of the shoulder. The rest were rib cage hits just under the shoulder blade tight behind the shoulder. Some of these ran a few yards. I wouldn't count on an exit but a few did exit. If I were to shoot another deer with a 223 I would probably use the 70 gr. Speer or the 75 gr. BTHP with cannelure from Hornady. I have used these two on a number of feral hogs, lost a few but I don't take the time always to precisely place the bullet on hogs as half the time I am just trying to reduce their number and not expecting to put them in the freezer. But over all they have Performed well enough.
I stand for the Republic and all who oppose me be cursed!