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Long Range Hunting & Shooting
Bullet drift no wind
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<blockquote data-quote="lancetkenyon" data-source="post: 1207135" data-attributes="member: 68875"><p>First, 1.75 <strong>MIL</strong> is 31.5" @ 500 yards, no 8". So am going out on a limb and thinking you mean 1.75 <strong>MOA</strong>, which is 8.7" @ 500 yards.</p><p> </p><p>So without knowing your bullet weight and velocity or barrel twist rate, and assuming right hand twist barrel, I can see 1-2"of spin drift at 500 yards being possible. </p><p> </p><p>Are you sure you are dead center for windage @ 100 yards? Not maybe 1/4" right? Which would add another 1.25" right @ 500. </p><p> </p><p>Do you have an anti-cant device (level) on your scope? Even a degree or three can add a right POI on target. And if you do, is your reticle plumb and leveled with you rifle?</p><p> </p><p>Are you sure it was an absolute 0 wind? Even a 2mph breeze could push another 3" or more @ 500.</p></blockquote><p></p>
[QUOTE="lancetkenyon, post: 1207135, member: 68875"] First, 1.75 [B]MIL[/B] is 31.5" @ 500 yards, no 8". So am going out on a limb and thinking you mean 1.75 [B]MOA[/B], which is 8.7" @ 500 yards. So without knowing your bullet weight and velocity or barrel twist rate, and assuming right hand twist barrel, I can see 1-2"of spin drift at 500 yards being possible. Are you sure you are dead center for windage @ 100 yards? Not maybe 1/4" right? Which would add another 1.25" right @ 500. Do you have an anti-cant device (level) on your scope? Even a degree or three can add a right POI on target. And if you do, is your reticle plumb and leveled with you rifle? Are you sure it was an absolute 0 wind? Even a 2mph breeze could push another 3" or more @ 500. [/QUOTE]
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Bullet drift no wind
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