I would like to see hunters limit their shots to those which will hit the heart/lung area, or the neck or head for a killing shot. But, life does not work that way. I try to break a foreleg with my shot as well as hit the lungs, but it takes patience, and a willingness to pass on other shots. Patience has taught me to be more quiet in the woods, to move slower, and with soft feet.
If the only deer you see are running, you are moving too fast, not paying attention to the wind, or to your feet.
I would like to see hunters learn how to track the animals they shoot, and not just blood trails. With a minimum of instruction, and some practice there is almost no reason for a hunter to lose a deer he has shot, or fail to recover it.
I was tracking a deer for a friend when a storm front came through, and blew all the leaves in the forest into the next ravine, covering up our tracks, and what little blood we had to follow. I lost that deer, even though two of us spend 2 hours, running concentric rings and arcs looking for the tracks, until way after dark. I found the deer's carcass in the next ravine a month later when I returned for the second half of the season here in Illinois. The shot had hit the deer in the jaw bone, and severed the jaw, making it inpossible for the buck to eat or drink. Coyotes were working on what was left. I took the antlers. I will always feel bad about losing that buck's tracks, but it could not be helped. We had 40 mph winds blow through and moved just about everything. We were in old growth forest when we lost his tracks, with a thick bed of leaves that he stepped on. We did track the deer about 300 yds from where he was first hit, which was 50 yds further than the shooter could follow it looking just at blood.
Animals go into shock, when hit, and don't feel any more pain than humans often do for the same reason. Respect them enough to pick your shots, and always follow up on a shot you think missed.
My brother missed a deer at very short range and didn't believe it was possible until I showed him the half moon arc that his slug put through a branch of a tree limb he didn't see from where he shot. I tracked the deer for more than 200 yds, both to show him how it is done, and also to show him how to verify that the slug did not hit the deer. No blood, no foot dragging, no stumbling, or any other change in body movement to indicate an injured deer was seen. Less than 50 yds from where he was shot at, this little buck returned to a steady walking gait, and walked to a main trail stopping once in awhile to nibble at grasses growing along the trail. When the buck's tracks mingled with other tracks made that morning, I stopped and asked my brother if he still had any doubts that he missed.
I was prepared to continue tracking, but it would be much harder, and almost impossible for him to see how I could follow our buck's tracks through that mess of tracks, even if I pointed the tracks out to him. He just wasn't ready for that level of training, yet. He was satisfied so we stopped tracking that deer. I had been satisfied that he missed the buck when I examined the first tracks of the buck where he was standing when my brother fired his shot, and before I found that branch he hit. But, then, I have been tracking for more than 50 years.