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What makes a scope jump zero?

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Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: December/10/2007 at 13:55
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Optics GrassHopper
Optics GrassHopper


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Ok, my question is two part. First, is it the springs that holds the adjusters, or is it something else. Second, what makes it not return to zero, if you do wind and elevation adjustments. Same reasons?  Is this fixable, via taking apart and replacing springs, or besides the actual lenses, what makes those expensive scopes work better?  Closer tolerances? Just curious. Thanks
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: December/10/2007 at 14:16
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Optics Jedi Knight
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most lower end and some middle end scopes have only one finger or leaf that is placed at 45 deg to the windage and elevation,  axis, at extremes in the settings the tension is not consistent and the gimbels and pins that push the erector may fail. Better scopes have collapsible coil springs and usually at least 2 pushing at 180 deg. to the axis. Better springs, are just part of it, differences such as ball detents, harder metals , brass gearing  besides glass go into the better models. Sometime you will hear the saying $600 glass in a $200 scope or the other way around $200 glass in a $600 scope, giving an idea of a subjective ratio of value of glass to internal working parts.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: December/10/2007 at 15:57
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Optics GrassHopper
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Ok, thanks for the info.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: December/10/2007 at 17:20
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Optics Master
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If the scope rings toward the butt end of the rifle are too tight that may cause it. Most scopes use 12 to 15 inch pounds ( Not foot pounds) use a inch pound torque wrench if possible.
 
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