I've got a range buddy that smokes in his stands from time to time and claims it has never affected the deer...this year he stood up, peed out of his stand, lit up a cigarette and not 5 minutes later he shot a 210 7/8 pt. nontypical.

I'd imagine that it doesn't affect deer much if at all because of a few things. A. they probably don't associate it with humans, so are more curious than afraid B. it's entirely possible that it smells good to them (especially cigar smoke) C. If you're doing your job as a hunter, 90% of the smoke will be carried away from your range by the wind

That's not to say I recommend smoking in the stand, heck, I don't recommend smoking at all, but to each his own.

Screw the 10 ring, keep them in the zero!!!