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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
external ballistics question
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<blockquote data-quote="rscott5028" data-source="post: 640051" data-attributes="member: 24624"><p>The bullet is affected by a given wind vector and magnitude for the portion of flight that it's exposed to that wind. </p><p> </p><p>When shooting long range, there are frequently multiple wind vectors at varying magnitudes. By the time you run your ballistics software for each portion of flight to calculate the net result, the wind will have changed and your estimates wouldn't have been smack on anyways. </p><p> </p><p>Hence, it's often easiest to swag an average, choose what you feel to be the predominant wind, or simply shoot/spot and walk it in depending on the circumstances. </p><p> </p><p>Shooting sharply down a berm, the "head wind" may have created an up draft or down draft relative to your line of sight depending on several factors. If it was truly head on, then it would be zero value. </p><p> </p><p>-- richard</p></blockquote><p></p>
[QUOTE="rscott5028, post: 640051, member: 24624"] The bullet is affected by a given wind vector and magnitude for the portion of flight that it's exposed to that wind. When shooting long range, there are frequently multiple wind vectors at varying magnitudes. By the time you run your ballistics software for each portion of flight to calculate the net result, the wind will have changed and your estimates wouldn't have been smack on anyways. Hence, it's often easiest to swag an average, choose what you feel to be the predominant wind, or simply shoot/spot and walk it in depending on the circumstances. Shooting sharply down a berm, the "head wind" may have created an up draft or down draft relative to your line of sight depending on several factors. If it was truly head on, then it would be zero value. -- richard [/QUOTE]
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external ballistics question
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