I'm primarily a bowhunter and learned early how to search for blood & track a wounded deer. Last year I arrowed a 140+ buck. He dropped within 60 yards. The arrow passed through both lungs. Later a arrowed a big doe. She ran like the wind. After a day of circling the area looking for blood, I finally found two small drops on a branch. I got down on my hands and knees crawled in the opposite direction of the tiny blood spatter.
Found her 80 yards from where I shot her in a deep ditch covered with honeysuckle. She was also shot through both lungs.
Hunting a wounded animal means you gotta put on your CSI Hat.
BTW: Never lost a deer while muzzleloader hunting. T/C Hawken: Round Ball and T/C Omega: Hornady SST 250 Sabots.