The reaction time of a whitetail is amazing. We’ve all missed a time or two and blamed the deer for jumping the string. Here is an example. This is a young doe. I’m shooting a Mathews Z7 at 270 fps. The shot is exactly 30 yards, or 90 feet. So the doe has exactly 1/3 of a second from the time I release the arrow until the arrow gets to her. She is head down feeding, not on alert. I am aiming at her front right shoulder, after the arrow is released she does a full 180 and I hit her on the left rear on the opposite side of her body. And she did it in less than 1/3 of a second from a dead stop and not being on alert.
Watch this. It will run a couple times in slow motion.