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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
scopes and bubble confusion
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<blockquote data-quote="LouBoyd" data-source="post: 675203" data-attributes="member: 9253"><p>There is no guarantee that the reticle in the scope is not rotated with respect to the direction the target knobs move. In high quality scopes it's usually close to correct but that can slip by QC inspection of cheap scopes. I've seen scope with the reticle over 5 degrees off from the factory.</p><p></p><p>What's important? If you 're mounting a bubble level and expect it to work right and you have to choose between mounting the scope with the turrets correct or the reticle correct choose having the turrets correct if you plan to use the target turrets with calculated or lookup table drop and windage. Either that or ship the scope back to the manufacurer for repair or replacement. With the bubble in ATD centered the elevation adjustment should track along a vertical line (the gravity vector as measured with a plumb bob). A rotated reticle will not introduce an error as long as you only aim using the center of the crosshair and never use the reticle for offsets </p><p></p><p>On scopes where the elevation and windage turrets are not used (such as the Horus reticles), it's the reticle which should be aligned to vertical, not the e&w knobs. The reticles have not been detectably rotated on the Horus scopes I own.</p></blockquote><p></p>
[QUOTE="LouBoyd, post: 675203, member: 9253"] There is no guarantee that the reticle in the scope is not rotated with respect to the direction the target knobs move. In high quality scopes it's usually close to correct but that can slip by QC inspection of cheap scopes. I've seen scope with the reticle over 5 degrees off from the factory. What's important? If you 're mounting a bubble level and expect it to work right and you have to choose between mounting the scope with the turrets correct or the reticle correct choose having the turrets correct if you plan to use the target turrets with calculated or lookup table drop and windage. Either that or ship the scope back to the manufacurer for repair or replacement. With the bubble in ATD centered the elevation adjustment should track along a vertical line (the gravity vector as measured with a plumb bob). A rotated reticle will not introduce an error as long as you only aim using the center of the crosshair and never use the reticle for offsets On scopes where the elevation and windage turrets are not used (such as the Horus reticles), it's the reticle which should be aligned to vertical, not the e&w knobs. The reticles have not been detectably rotated on the Horus scopes I own. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
scopes and bubble confusion
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