Another thing some don't know about lung shots is that while they do die from suffocation they actually bleed out rather fast as well. This is due to the fact that after the blood vessel rich lungs are punctured a deers body suffers a massive drop in blood pressure which the deers body compensates for by pumping it's heart harder and faster which of course leads to more bleeding, this is almost opposite of how a deers body responds to a heart shot where the body shuts down the heart and all arteries, veins, and organs retain the blood they possess which equals decreased blood circulation and less blood leaves the body.Heart shots are definitely deadly and I have never had a badblood trail from onejust thought I'd mention it.

Entry exit holes come into play because even though the actual wound on a high lung shot will bleed and smudge the chest cavity can take a long time to fill up to a high wound if it fills up that much at all, and me personally I would rather have that blood on the ground than filling in the chest cavity.