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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
A decent spindrift formula
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<blockquote data-quote="Blaine Fields" data-source="post: 29305" data-attributes="member: 183"><p>meichele,</p><p>Your intuition is right on. McCoy has a nice chapter called "Linearized Swerving Motion of Rotationally Symmetric Projectiles" in which he explores spin drift in depth and sets forth the relevant equations. </p><p></p><p>One graph shows a comparison between the .50 cal, API, M8; the Match M118; and a Ball M80. At 2000 yards, the .50 cal has drifted 50 inches, the M118 about 95 inches and the M80 over 150 inches. Obviously the simple equation I have posted above doesn't do justice to the topic.</p></blockquote><p></p>
[QUOTE="Blaine Fields, post: 29305, member: 183"] meichele, Your intuition is right on. McCoy has a nice chapter called "Linearized Swerving Motion of Rotationally Symmetric Projectiles" in which he explores spin drift in depth and sets forth the relevant equations. One graph shows a comparison between the .50 cal, API, M8; the Match M118; and a Ball M80. At 2000 yards, the .50 cal has drifted 50 inches, the M118 about 95 inches and the M80 over 150 inches. Obviously the simple equation I have posted above doesn't do justice to the topic. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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A decent spindrift formula
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