Horizontal string

J

JEC

Guest
Saw an interesting phenomenon today...a horizontal string about 4" wide @ 100 yds. Chap said the rifle is a known shooter...that he just mounted a used leupold scope with used rings... the string was all at the same height... just moving from side to side.
I don't know the internal scope mechanics, but is it possible a faulty reticle would do this with just horizontal crosshair, or could there be someting faulty with the rings (leupold STD?
 
sliding around?

JEC said:
Saw an interesting phenomenon today...a horizontal string about 4" wide @ 100 yds. Chap said the rifle is a known shooter...that he just mounted a used leupold scope with used rings... the string was all at the same height... just moving from side to side.
I don't know the internal scope mechanics, but is it possible a faulty reticle would do this with just horizontal crosshair, or could there be someting faulty with the rings (leupold STD?
Click to expand...

I wouldn't give up on the scope just yet. It could be just slipping in the rings. When installing scopes, I usually put a piece of masking tape on the scope next to a ring as a witness mark and keep an eye on it until I'm sure the scope is not moving. The big heavy scopes seem to slide more then the lighter ones.
 
I've seen rifles that "always shoot itty bitty groups" that can barely put five into a 3" group at 100 yards, so unless YOU know that the rifle shoots better than this it could be anything. If it's got a sporter weight (light) barrel on it, and there's any side pressure on it from the stock things can go bizarrely wrong. A light barrel that moves as it heats up combined with pressure from the stock can lead to vertical, or diagonal groups too. A bad scope or loose scope will usually just spray bullets in a random pattern.
 
A weather report

The statement about wind flags is in a way saying that there may have been a strong cross wind blowing and you did not detect it. Good Luck
 
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