Deer Jumping The String Research

[texas bound]

Lmao!!!!! Ok....

For the guys who shoot fast bows, your bow isn't fast enough to beat a deer's reaction time if they're jumpy. Their reaction time is just too fast.

This is why I care more about how loud my bow is vs how fast my bow is. I always try to make my bow as quiet as possible and wont buy a loud bow no matter what the fps is.

[rtp]

Those deer are from the Matrix movie.

[Chad C]

Sound travels at 1125 fps +/-

It takes a deer .11 seconds to drop 2.5":

y = 1/2 g * t ^ 2
g = 9.8m / s ^ 2 (gravity)

0.064m = 0.5 * 9.8m / s ^ 2 * t ^ 2

t = 0.11 seconds

Sound is your enemy!

[johnpaul]

I've heard that deer aren't ducking the string, but the sound of the arrow coming towards them.

Have you ever stood out to the side of where someone is shooting? For instance, you're friend is shooting at 20 yards and you are 10 yards down range and 10 yards out of the path of the arrow. The arrow is incredibly loud going down range as it rips through the air.

[Esau]

I agre the noise is why thay are droping to spring off for the jump!

[Ruark]

Sound travels at 1125 fps +/-
It takes a deer .11 seconds to drop 2.5":
y = 1/2 g * t ^ 2
g = 9.8m / s ^ 2 (gravity)
0.064m = 0.5 * 9.8m / s ^ 2 * t ^ 2
t = 0.11 seconds

Don't forget to add the deer's reaction time to that.....

Data point: at 300fps, it takes an arrow .2 (two tenths, or one fifth) seconds to travel 20 yds.

[47]

That's why you should always aim low, for the heart. If they drop you should still get lungs, if they don't move you still get the heart. Either way it's a dead deer.

ahh...but therein lies part of the problem.

The terminology is all wrong, most new bow hunters hear "jump the string" so many times they(naturally) equate "jump" with moving upward... so they develop a bad habit of aim middle to mid/high.

When in fact, what is actually happening is the deer are "ducking" the string.

[johnpaul]

Here is an example of what I was talking about.

http://www.huntography.com/blog/2011/10/11/bowhunting-video-test-do-deer-jump-string-or-sound-of-arrow-broadhead/

[JSF]

I've heard that deer aren't ducking the string, but the sound of the arrow coming towards them.

Have you ever stood out to the side of where someone is shooting? For instance, you're friend is shooting at 20 yards and you are 10 yards down range and 10 yards out of the path of the arrow. The arrow is incredibly loud going down range as it rips through the air.

Ding ding this is the answer.....I figured this out when I was shooting with a buddy and he shot at the target while I was downrange (other side of my truck and not in his shooting path).....the arrow is LOUD

[47]

I've heard that deer aren't ducking the string, but the sound of the arrow coming towards them.

Have you ever stood out to the side of where someone is shooting? For instance, you're friend is shooting at 20 yards and you are 10 yards down range and 10 yards out of the path of the arrow. The arrow is incredibly loud going down range as it rips through the air.

Blazers and other high profile vanes especially... some even make a loud buzz sound.

I'd duck too

[Cazador]

That's why you should always aim low, for the heart. If they drop you should still get lungs, if they don't move you still get the heart. Either way it's a dead deer.

Alright, so I watched your video. Nice shot by the way. I noticed the buck you hit did not move until the arrow had already exited. However, the doe right next to him, appears to have moved so quickly that she may have completely ducked your arrow, or caused a lung shot.

Since I've not bow hunted for deer before tomorrow, I'm really wondering now. Is ducking something that only doe do or will a buck do it also?

BigWes, take Keith's advise... aim low, for the heart. Plenty of vital diagrams available here on TBH or a Google search to see where the heart is. The video posted by tmurray is a perfect example of how individual deer react differently, it’s not necessarily a buck versus doe thing, their reactions could have very well been reversed. Aiming lower in the vitals will catch the heart if the deer remains in position (like the buck) or if it ducks (like the doe in the video) you should still catch the lungs. Another couple tips… aim for the exit hole, envision where the arrow will exit on the opposite side, make sure the vitals are between the entrance and exit. Aim small (pick a spot like a hair, dirt, etc) don’t aim in general at the deer. Good luck and I hope to see your LDP!

[tmurray]

Alright, so I watched your video. Nice shot by the way. I noticed the buck you hit did not move until the arrow had already exited. However, the doe right next to him, appears to have moved so quickly that she may have completely ducked your arrow, or caused a lung shot.

Since I've not bow hunted for deer before tomorrow, I'm really wondering now. Is ducking something that only doe do or will a buck do it also?

The difference in the doe vs buck in my video is that the buck was completely relaxed and a bit cocky to be honest as he was the dominant buck in the area. Where the doe was jumpy. She was not jumpy because of me, just because it was during the rut and she kept getting run around by the bucks.

I do however think that a doe has a faster reaction time than a mature buck. I've noticed that when shooting a mature buck they don't tend to duck the string unless they are already on edge when you shoot.

[Mud Shark]

That's why you should always aim low, for the heart. If they drop you should still get lungs, if they don't move you still get the heart. Either way it's a dead deer.

This is what I was thinking. I experience similar results my self and I was shooting a diamond Black Ice at 68 lbs. I sold it because I couldn't hit water if I fell out of a boat with it.

To me, it looks like she was just aiming too high. Just like I did.

[TX_Kevin]

I am a little surprised that no one has stated the obvious here: When a deer has it's head down, they drop more than they do if their head's up.

[Daniel75]

This is why I care more about how loud my bow is vs how fast my bow is. I always try to make my bow as quiet as possible and wont buy a loud bow no matter what the fps is.

Same here I was shooting 313 fps with a D350 LE and a light arrow, bow had some sound. I went up 75 grains in arrow weight on a D340 and dropped to 267 fps with FMJ's and this bow is quiet now. I'd rather it be quiet because you could fling a 340 fps PSE DNA arrow at it, its still going to do a Matrix move on you if it hears the bow. That being said, I know the arrow coming at you has some sound too:

http://m.youtube.com/watch?v=669571IQ4Ds&desktop_uri=%2Fwatch%3Fv%3D669571IQ4Ds

That's a 255 fps 400 grain arrow with Blazers.