How to fix a peep sight that over rotates

siwulat

Active Member
Sep 6, 2014
160
0
Minneapolis
I had a new string put on my bow and have put probably 100 or so shots through it so far. I am finding that my peep sight is no longer lined up when I draw and neither is my d loop. I have been twisting my peep with my hand before each shot and that helps for that shot, but I need to repeat before each shot. I tried to rotate my d loop with my fingers, but it seems to be tied so tight that I can't move it! I'm hoping to fix this issue without going to a pro shop and I don't own a bow press...any suggestions?
 

tdcour

Veteran member
Feb 28, 2013
1,100
26
Central Kansas
The problem is with your d loop. You can keep trying to twist it with your fingers or loosen the d loop and move it. I'm sure there are YouTube videos that show it. After 100 shots your string should be shot in enough that once you get it set now you shouldn't have an issue.
 

WapitiBob

Veteran member
Mar 1, 2011
1,385
58
Bend, Orygun
The problem is not the D loop. The problem is that the string has settled and as a result has rotated from the initial position.
Press the bow and rotate one end of the string to get the peep to line up, then twist the D loop back into proper position and tighten the piss out of it. If it's a hybrid cam, twisting the top string loop a half turn is close to a 1/1 relationship of loop to peep, twisting the btm loop is about .5/1 relationship.
Don't get in the habit of using the d loop to rotate the peep into position, both should be straight back and you should have no peep rotation during the draw process, if you have a quality string. If you have a string that rotates, get a different one. Your string is just a bundle of roving, like a cable. When the line tension increases, and the bundle stretches, it rotates. High end strings are stretched under higher tension that they will see when you draw, so the line tension doesn't rotate the bundle (string) as you draw. Your highest tension will be at brace, the lowest at full draw, allowing lesser string to "unwind" as you draw, and you see it as peep rotation.
 
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bowhunterjae

New Member
Feb 22, 2011
46
2
The problem is not the D loop. The problem is that the string has settled and as a result has rotated from the initial position.
Press the bow and rotate one end of the string to get the peep to line up, then twist the D loop back into proper position and tighten the piss out of it. If it's a hybrid cam, twisting the top string loop a half turn is close to a 1/1 relationship of loop to peep, twisting the btm loop is about .5/1 relationship.
Don't get in the habit of using the d loop to rotate the peep into position, both should be straight back and you should have no peep rotation during the draw process, if you have a quality string. If you have a string that rotates, get a different one. Your string is just a bundle of roving, like a cable. When the line tension increases, and the bundle stretches, it rotates. High end strings are stretched under higher tension that they will see when you draw, so the line tension doesn't rotate the bundle (string) as you draw. Your highest tension will be at brace, the lowest at full draw, allowing lesser string to "unwind" as you draw, and you see it as peep rotation.
Thank You! I just learned more than I knew about Strings and Peeps.
I am going to have a new string put on now that I have heard this. Several bow shops in the area make custom strings. Should I buy one of those or a stock string? If a stock one, what string?
Thank You and sorry if I jacked the thread but, Maybe this will be usefull information for him too.
John
 
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siwulat

Active Member
Sep 6, 2014
160
0
Minneapolis
Thanks both for the comments. Super helpful. The more I look at it the more I think it I do need to readjust the d loop. The peep is straight when the bow is at rest but the loop is pointing probably 50 degrees to the right. No sure how that happened, but it probably has to do with the settling of the string. Question is, how do I loosen the d loop so I can straighten it out?

Yes I'm pretty new to this whole bow tuning stuff. Thanks for the help!
 

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WapitiBob

Veteran member
Mar 1, 2011
1,385
58
Bend, Orygun
Use a set of needle nose pliers to hold the serving/string above the loop then just twist the knots into position. Use the pliers to tighten by inserting them into the loop then opening the plier handles. I use two hands on the pliers and push/pull as hard as I can. You can also go to the shop and they may/should have a special set of loop pliers.

My opinion only.... that loop rope looks too big and the knots are too loose.
 
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WapitiBob

Veteran member
Mar 1, 2011
1,385
58
Bend, Orygun
This loop is a little long as I am working on draw arm position.
Google "john dudley knot a problem" for a pdf on string loops.

 
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Shane13

Active Member
Aug 8, 2012
346
274
Hawley, Texas
I'm still old school, I guess. I use a peep aligner with a piece of silicone tubing to keep my peep straight. I've used that system on every bow I've ever owned for the last 25 years. It's never failed me one time. The cons that I hear from others are that the tubing can be noisy, and the tubing is likely to break and pop me in the eye. However, I always get comments on how quiet my bow is (Bear Carnage), and I don't have any trouble killing deer and hogs and turkey with it. Also, I've never had a piece of tubing break and pop me in the eye - knock on wood. As a precaution, I put on a new piece of tubing every year at the beginning of the season - just in case. I imagine that if I had a 5 yr old piece of tubing on my bow, it would be likely to break. But new tubing is good.

Also, I see a LOT of threads on hunting forums where someone is asking for help on what to do about their twisted string and out-of-alignment peep sight when they don't use a peep aligner. I've never seen a thread where a guy said that he got popped in the eye by his broken tubing. I'm sure it's happened, but it's WAY less common than a twisted string and a mis-aligned peep on a bow that doesn't have an aligner installed. Without an aligner, you never know when your string will twist and your peep will go crooked on you for the first time. I don't want to have that happen to me when I'm drawing on a nice buck, so I just put one of those old-fashioned silly pieces of tubing on my bow. It works for me. I can take the ridicule. :D
 

WapitiBob

Veteran member
Mar 1, 2011
1,385
58
Bend, Orygun
Nothing wrong with the tubing. The Bulls I killed with the tubing on the peep never mentioned it so it must be OK. More than one guy has rubbed his face all over the string trying to get the peep lined up when it was time to shoot.
 

25contender

Veteran member
Mar 20, 2013
1,638
90
I just flip strands on the peed to rotate it then re-serve. I use a a piece of small round wire bent double to flip the strands. You do need to be careful when flipping those strands over the edge of the peep. it seems the only real way to make small adjustments to get it right. Once it is set right you will be good to go.
 
I fought this issue big time last year. I did everything to try and correct it. Come to find out the color string from a highly respected string maker was defective. They quickly sent me a new set and has been fine since. Moral of the story is to buy single color strings so it stretches evenly.


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