Last Monday evening, a smallish eight pointer came by me. He was on the wrong side for a shot and behind and down the ravine from me, eighteen yards. He passed by some brush and I could barely see him, when he was 10 feet behind me he smelt me and bolted. It was 7:05 PM, I supposedly had 20 minutes of legal shooting time left. All situations are different. I have one rule for shooting light that I never break, if you cannot see the hit, you cannot take the shot. The second rule is about the same, if you cannot see the twigs and stems you need to shoot through, you cannot take the shot.