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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Wind and Uphill/Downhill Shots
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<blockquote data-quote="MagnumManiac" data-source="post: 1759702" data-attributes="member: 10755"><p>I have pondered this exact question.</p><p>The formula used is for 'true range', regardless of angle.</p><p>Prior to purchasing a ballistic app of high quality, I actually performed written formulae for all this stuff before there was an actual app...coulda made a fortune developing an app.</p><p>Anyway, as the true range is all that matters, the apps all use this to calculate wind drift, bullet drift and Coriolis correction.</p><p>I should add that the formula that calculates true range is called Cosine, it calculates the angle you put in and determines the true range of the actual flight path, flight time and velocity at target etc.</p><p>It can be found in Speer No.13 manual, very informative piece of kit.</p><p></p><p>Cheers.</p></blockquote><p></p>
[QUOTE="MagnumManiac, post: 1759702, member: 10755"] I have pondered this exact question. The formula used is for ‘true range’, regardless of angle. Prior to purchasing a ballistic app of high quality, I actually performed written formulae for all this stuff before there was an actual app...coulda made a fortune developing an app. Anyway, as the true range is all that matters, the apps all use this to calculate wind drift, bullet drift and Coriolis correction. I should add that the formula that calculates true range is called Cosine, it calculates the angle you put in and determines the true range of the actual flight path, flight time and velocity at target etc. It can be found in Speer No.13 manual, very informative piece of kit. Cheers. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Wind and Uphill/Downhill Shots
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