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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Altitude vs. Barometric pressure
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<blockquote data-quote="Mike in Texas" data-source="post: 73958" data-attributes="member: 1889"><p>What really effects bullet flight is station pressure,(absolute pressure) at your location.</p><p></p><p>As an example, a station pressure change from 28.85 to 28.80 means that at 1000 yards my 308 load will need 1 full moa less elevation to strike the same point.</p><p></p><p>Different programs try to back out corrected sea level based on temp and altitude. Some hit, most don't.</p></blockquote><p></p>
[QUOTE="Mike in Texas, post: 73958, member: 1889"] What really effects bullet flight is station pressure,(absolute pressure) at your location. As an example, a station pressure change from 28.85 to 28.80 means that at 1000 yards my 308 load will need 1 full moa less elevation to strike the same point. Different programs try to back out corrected sea level based on temp and altitude. Some hit, most don't. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Altitude vs. Barometric pressure
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