Deer do not survive gut shots or chest shots. i know of only one deer that survived a good shot. That 12 point buck was hit in one lung from about 300 yards by a guy with a muzzleloader who knew better. My game camera video picked that buck up for many months afterwards. The buck coughed about every 30 seconds. A friend killed that buck the next fall: He was an 8 point in bad shape when killed.