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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
sighting in a Leupold CDS
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<blockquote data-quote="FearNoWind" data-source="post: 1003893" data-attributes="member: 50867"><p>What's the data for MV and twist? If the twist is less than 1:9 that bullet won't stabilize adequately under about 4500 fps (Don Miller Twist Rule).</p><p>I believe it is counterproductive to zero at 100 and then "fine tune" at longer distances. I zero at 200 and leave well enough alone. There are too many uncontrollable factors affecting bullet path beyond 200 yards to try and make up for minor variations in group performance. For a hunting rifle, when the 200 zero provides me with 1.5moa at 300 I'm done.</p></blockquote><p></p>
[QUOTE="FearNoWind, post: 1003893, member: 50867"] What's the data for MV and twist? If the twist is less than 1:9 that bullet won't stabilize adequately under about 4500 fps (Don Miller Twist Rule). I believe it is counterproductive to zero at 100 and then "fine tune" at longer distances. I zero at 200 and leave well enough alone. There are too many uncontrollable factors affecting bullet path beyond 200 yards to try and make up for minor variations in group performance. For a hunting rifle, when the 200 zero provides me with 1.5moa at 300 I'm done. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
sighting in a Leupold CDS
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