We learn something new every year! This past October 2019, a young bowhunter was video’d at Dr. Grant Woods proving grounds. UPDATE: Also a second video that provides drop data at 20, 30 and 40 yards.
The analysis of the video shared some insights to help me understand some key facts.
Fact #1 No matter what you do as the bow or crossbow is shot, a deer will hear the thwap sound of bow/crossbow and string before the arrow arrives.
Fact #2 Deer don’t always jump the string but a louder foreign sound increases that risk dramatically. UPDATE: Dr. Woods says assume all whitetail deer will drop at the shot!
Fact#3 If the deer is “on alert”, your chances of a solid double lung kill shot go down go down the further away the deer is.
Fact #4 Deer with a head down, can drop its body faster than gravity because it uses its head and neck to lever its chest downward. UPDATE: And drop its body even lower.
Fact #5 Deer with head up, when the shot is taken, can’t use its head and neck to lever the body thus can only drop at the speed of gravity, 32 fps² .
Fact#6 Aiming at the lower 1/3 of the chest (heart shot) , instead of center chest is the best advice for deer within 30 yards.
Fact#7 Shots beyond 30 yards even with a fast 300 fps bow are lower percentage success shots if the deer drops. UPDATE: Deer can drop 5 inches or more at 40 yards
Fact#8 Deer drop when startled and it need not be a bow or arrow noise that causes them to drop and turn away from the noise.
Fact#9 Only take high percentage shots for consistent harvests.
Another article to chew on below.
https://www.americanhunter.org/articles/2019/9/19/deer-trust-their-ears/
Good Hunting!