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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Vortex Viper PST reticle cant
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<blockquote data-quote="bruce_ventura" data-source="post: 881480" data-attributes="member: 34084"><p>A reticle alignment error less than 0.5 degrees will not produce a significant aiming error, even at long range. That's easy to confirm using a ballistics calculator. </p><p></p><p>I regularly see reticle alignment errors of a over a degree. At 2 degrees the aiming error is becomes significant, and is comparable to spin drift. </p><p></p><p>If you're dialing elevation, then the anti-cant indicator should be aligned to the turret axis instead of the reticle. Then a small reticle misalignment really doesn't matter that much. As Crashman1 said, the best way to check that the elevation turret is plumb is to run the elevation turret up and down while looking through the scope at a plumb line. If the reticle moves left or right off the plumb line, the turret axis is not plumb. The rifle has to be held in a rigid vise when doing this.</p></blockquote><p></p>
[QUOTE="bruce_ventura, post: 881480, member: 34084"] A reticle alignment error less than 0.5 degrees will not produce a significant aiming error, even at long range. That's easy to confirm using a ballistics calculator. I regularly see reticle alignment errors of a over a degree. At 2 degrees the aiming error is becomes significant, and is comparable to spin drift. If you're dialing elevation, then the anti-cant indicator should be aligned to the turret axis instead of the reticle. Then a small reticle misalignment really doesn't matter that much. As Crashman1 said, the best way to check that the elevation turret is plumb is to run the elevation turret up and down while looking through the scope at a plumb line. If the reticle moves left or right off the plumb line, the turret axis is not plumb. The rifle has to be held in a rigid vise when doing this. [/QUOTE]
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Vortex Viper PST reticle cant
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