I prefer the lower chest about one third up to take out heart and lungs. It gives you a little room for error and still get a killing shot hit if you are off just a skosh. As in my first Crossbow kill.

I shot at a nice sized doe, I knew the arrow hit good after the shot, waited about 30 mins in the stand. My buddy came walking up and said he had come to get me and saw me aiming so he sat down.

He couldnt see the doe, and asked if I got a good shot on her, I said I thought I hit her in the heart lungs. He said he didnt hear it when I hit her, just the noise from my crossbow. We walked over to investigate and found my bolt only slightly bloody about 5 feet past where I had told him the doe was standing, a few cut hairs, but no blood at all.

He asked again if I had actually hit her or if she had jumped the string, but I was sure I had hit her good, but we couldnt find any trace of it. So I took him where I had seen her run. We went over 70 yards without a drop of blood, just sign where she had really been on a hard run, torn up dirt, etc.

Again he accused me of missing or her string jumping me. To tell the truth he was finally starting to make me doubt I had hit her as hard as I had thought. We still followed the obvious sign of her departure with no blood when all of a sudden there was a swath of blood about 12" wide for about 20 feet and she was laying at the end of it.

When I hit her she was just very slightly facing downhill away from me, her left (away) leg was out in front.The arrow entered just above mid body angling down, passed through near lung, cut top of heart and exited far side behind her leg. I guess when she started running and her leg moved back below her it helped close the exit wound so not much if any blood came out there. When we field dressed her she had bled out into her forward body cavity.

She had run about 70 or 80 yards, since she had circled some real dense thicket stuff she was only about 30 yards from where I had shot her.

My point iseven though I had a low exit wound, it doesnt mean you will necessarily find a good blood trail.