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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Horizontal drift due to bullet spin and drop?
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<blockquote data-quote="Richard338" data-source="post: 34282" data-attributes="member: 1537"><p>Spin drift does play a small role. The bullets you are shooting are similar to those that McCoy discusses (.308) in his book. The spin drift at 1000 yrds for these cases would be a max of 1 MOA.</p><p>Much more likely to account for 6MOA is some wind that was down range. I have had to correct at least 5MOA for wind at 1000yrds when there was little or no wind at the firing line. Did you have wind flags?</p></blockquote><p></p>
[QUOTE="Richard338, post: 34282, member: 1537"] Spin drift does play a small role. The bullets you are shooting are similar to those that McCoy discusses (.308) in his book. The spin drift at 1000 yrds for these cases would be a max of 1 MOA. Much more likely to account for 6MOA is some wind that was down range. I have had to correct at least 5MOA for wind at 1000yrds when there was little or no wind at the firing line. Did you have wind flags? [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Horizontal drift due to bullet spin and drop?
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