Took mine around 150yds. I wouldn't try to take a deer over 200yds with a .223. As it loses energy pretty fast. Anything under that IMO is fine for me.
Didn't get a picture of the deer but here's the spot i was in.
Then I heard the voice of the Lord saying, "Whom shall I send? And who will go for us?" And I said, "Here am I. Send me."