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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Altitude Tools
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<blockquote data-quote="Michael Eichele" data-source="post: 596398" data-attributes="member: 1007"><p>^^^^^^^^^^^^^^^^^^^^</p><p></p><p></p><p>With fluctuating barometric pressures, altimeters can lead you astray easily. Ballistically, the best way to calculate air density is to use a thermometer and a pressure guage. Using raw pressure you can completely forget about altitude and set the program to zero feet.</p><p></p><p>If you cannot afford a guage, then altitude is your next best option and as jmden stated, a GPS is by far the most accurate followed by a good topo map.</p><p></p><p>The Brunton units are pretty economical versus the Kestrals.</p></blockquote><p></p>
[QUOTE="Michael Eichele, post: 596398, member: 1007"] ^^^^^^^^^^^^^^^^^^^^ With fluctuating barometric pressures, altimeters can lead you astray easily. Ballistically, the best way to calculate air density is to use a thermometer and a pressure guage. Using raw pressure you can completely forget about altitude and set the program to zero feet. If you cannot afford a guage, then altitude is your next best option and as jmden stated, a GPS is by far the most accurate followed by a good topo map. The Brunton units are pretty economical versus the Kestrals. [/QUOTE]
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Altitude Tools
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