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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Up/Downhill corrections
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<blockquote data-quote="Buffalobob" data-source="post: 227432" data-attributes="member: 8"><p>But we agree gravity is a downward force and it only affects things in one direction - downward. </p><p></p><p>So to reword the example I use to support my hypothesis ( I might not actually be correct).</p><p></p><p>If you go 2000 yards up in the sky and shoot a bullet straight down then the acceleration from gravity will add about 197 fps to the velocity you observe as it strikes the ground.</p><p></p><p>If you fire a bullet straight up then deceleration by gravity will reduce the velocity observed at 2000 feet by about 197 fps.</p><p></p><p>There will be a total difference in velocity of 394 fps approximately (the effects of air drag will cause the actually added or subtracted velocity to be somewhat less than calculated).</p><p></p><p>This is true irregardless of whether you shoot in a vacuum or not.</p></blockquote><p></p>
[QUOTE="Buffalobob, post: 227432, member: 8"] But we agree gravity is a downward force and it only affects things in one direction - downward. So to reword the example I use to support my hypothesis ( I might not actually be correct). If you go 2000 yards up in the sky and shoot a bullet straight down then the acceleration from gravity will add about 197 fps to the velocity you observe as it strikes the ground. If you fire a bullet straight up then deceleration by gravity will reduce the velocity observed at 2000 feet by about 197 fps. There will be a total difference in velocity of 394 fps approximately (the effects of air drag will cause the actually added or subtracted velocity to be somewhat less than calculated). This is true irregardless of whether you shoot in a vacuum or not. [/QUOTE]
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Up/Downhill corrections
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