RE: Best place for a kill shot on a Deer?
While a neck shot will drop them like now, a miss will result in the ugliest track or finish shot you won't want to experience again. If and I say only if you are really confident in the neck shot and the conditions, range are perfect...go ahead.
However I am with Chubber, the boiler room is the best place. You got lung, heart and a good 7" to play with, taking out the lungs will put them down quick and result in a blood trail a blind man can follow. I never really aim soley at the heart, I have seen heart shots drop and others go way to far compared to lungs. I aim mid line behind the shoulder, it takes out both lungs and often results in heart artiries which gives you loads of blood....longest deer ever went was 75-100 yards with an arrow. With a gun most drop within view and many on the spot.