Sometimes they go 1/4 mile. Sometimes they drop. Head shots are always two feet straight down. Where I hunt a deer that makes it into a swamp 100 yards can be tough to find. With a still target 100 feet or less, I will head shoot them. Beyond that get's into "depends" territory. Beyond 100 yards I usually put one low just behind the leg and take out the heart and lungs. Normal response to that is a few seconds before they are done. Might run 50 yards might drop right there. for me, DRT = not more than 20 feet of travel since a jump can take most of that.
