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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Leica's New Geovid HD-B
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<blockquote data-quote="cummins cowboy" data-source="post: 877408" data-attributes="member: 28348"><p>that is not true, they are using uncorrected barometric pressure which does relate to altitude, if you don't correct the barometric pressure to sea level standard you get the same value to offer a firing solution. bullet weight doesn't matter either as long as the correct BC is entered. </p><p></p><p>simply put you need </p><p></p><p>speed</p><p>barometric pressure either corrected or not</p><p>temp </p><p>bullet bc</p><p>and look angle. all of these things the HD b's compensate for. </p><p></p><p>there is also spin drift and Coriolis but thats probably not enough to worry about if its only doing its thing to 1000 yards.</p></blockquote><p></p>
[QUOTE="cummins cowboy, post: 877408, member: 28348"] that is not true, they are using uncorrected barometric pressure which does relate to altitude, if you don't correct the barometric pressure to sea level standard you get the same value to offer a firing solution. bullet weight doesn't matter either as long as the correct BC is entered. simply put you need speed barometric pressure either corrected or not temp bullet bc and look angle. all of these things the HD b's compensate for. there is also spin drift and Coriolis but thats probably not enough to worry about if its only doing its thing to 1000 yards. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Leica's New Geovid HD-B
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