Technical Find or ask for all the information on setting up, tuning, and shooting your bow. If it's the technical side of archery, you'll find it here.

Help, my zero is dropping

Old 10-05-2002, 10:09 AM
  #1  
Thread Starter
 
Join Date: Feb 2003
Location: Perryville MO USA
Posts: 21
Default Help, my zero is dropping

Can anyone help me?

I am getting back into bowhunting after a few years away. I bought a new Bear Vapor 300 about 8 weeks ago from the local pro shop. They set it up w/ Beman ICS arrow and an NAP 2000 fall away rest. I started shooting at about 62# at a distance of 25 yards. After awhile (200 shots or so) I decided to increase my poundage to 65#. All of the sudden my groups dropped about 6-8 inches. I took it back to the pro shop and they said the string must have stretched. Stating it wasn't uncommon for the string to stretch at about 200-250 shots. So they adjusted my nocks and sent me on my way. After I got it sighted in again and kept practicing, I was shooting consistent groups of 2 inches or less.........except on problem.

My groups started slowly moving lower and lower on the target every two to three days, and I have to keep adjusting my sights each week or so. The pro shop checked my bow over, said the rest was fine, and then said "I guess the string is still stretching".

Is this normal? For the string to consistently continue to stretch? I don't remember having a problem with this when I bow hunted previously.

Is this to be expected? Or am I being given questionable advice because the pro shop just doesn't know what is wrong with my bow? I would appreciate everyone's help.
270bolt is offline  
Old 10-05-2002, 05:45 PM
  #2  
Typical Buck
 
Join Date: Feb 2003
Location: Arlington WA USA
Posts: 718
Default RE: Help, my zero is dropping

See my response in Bowhunting.com

Bowhunter
dick_cress is offline  
Old 10-06-2002, 08:41 AM
  #3  
nub
 
Join Date: Feb 2003
Location: CWD Central, WI.
Posts: 2,062
Default RE: Help, my zero is dropping

What type of sight do you shoot?
nub is offline  
Old 10-06-2002, 01:05 PM
  #4  
 
Join Date: Feb 2003
Location: Louisville Kentucky USA
Posts: 105
Default RE: Help, my zero is dropping

Well, in this old hillbillys' opinion if the string had stretched the groups would have to go up. It is my opinion that the cable stretched causing the groups to go down. If a string stretches it increases draw length and draw weight, if a cable stretches it causes the draw length to shorten and draw weight to go down. Hope this helps. Be safe.
Shoot Straight
Derbytown <img src=icon_smile_big.gif border=0 align=middle>

Derbytown is offline  
Old 10-07-2002, 07:14 AM
  #5  
Nontypical Buck
 
ijimmy's Avatar
 
Join Date: Feb 2003
Location: WEST PALM FLORIDA
Posts: 2,890
Default RE: Help, my zero is dropping

I replied to you days ago but it was not posted , when you changed your bows weight you probably changed its tiller and that is what caused your change in impact .

If information provided by the members of this board have helped you please let us know .
ijimmy is offline  
Old 10-07-2002, 08:48 AM
  #6  
 
Join Date: Feb 2003
Location: Miami FL USA
Posts: 208
Default RE: Help, my zero is dropping

Its possible that your string or cables are not only stretching, but possibly failing!!!! Check for tell tale signs like serving separation, do a measurement of the axle to axle distance and compare it to the factory specs. If you use a crimp on nocking point, the brass type it is not too unusual to over crimp the nock set cutting string strands causing the string to fail.

Aim Hard!
FLHunter is offline  
Old 10-19-2002, 11:45 PM
  #7  
Banned
 
Join Date: Feb 2003
Posts: 27,585
Default [Deleted]

[Deleted by Admins]
Deleted User is offline  
Old 10-20-2002, 10:22 AM
  #8  
 
Join Date: Feb 2003
Location: Piedmont OK USA
Posts: 839
Default RE: Help, my zero is dropping

I agree with Jeff. The principle is to try the simple, easy and cheap things first. Had this happen with a new nocking point earlier this year. That is usually the first thing to go wrong.

We would appreciate hearing how this one turned out.
Sooner_Hunter is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Lady Forge
Bowhunting
11
09-18-2008 08:14 AM
Geronimo
Technical
21
08-21-2008 03:48 PM
NChunterman
Target Archery
2
06-07-2008 07:02 PM
GMMAT
Bowhunting
16
02-19-2008 07:39 AM
adams
Bowhunting
4
04-06-2005 08:41 AM

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off


Quick Reply: Help, my zero is dropping


Contact Us - Manage Preferences - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.