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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Effects of wind?
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<blockquote data-quote="jb1000br" data-source="post: 80518" data-attributes="member: 1459"><p>Well, when this question comes up, you will always get both answers...shown here.</p><p></p><p>I have seen more evidence of a HEADWIND RAISING POI AT LONG RANGE.</p><p></p><p>But it makes more sense that it would do the reverse at short range...</p><p></p><p>WHY?</p><p></p><p>On its way to 1000yds the bullet spend more time CLIMBING then FALLING, so why wouldnt a headwind give the bullet LOFT?</p><p></p><p>At close range, the trajectory is probably flat enough that it is as simple as the wind adding and subtracting from velocity, meaning a HEADWIND WOULD LOWER POI</p><p></p><p>Now how bout 2000yds+ The bullet is much slower further out and angling toward earth, so here, the loft may even out the added drop, or the headwind may end up causing a total effect lowering POI -- i cant say much here because i have not fired in enough varied conditions past 1mile to see a pattern.</p><p></p><p>Personally i think the answer depends on the distance you are shooting, and the flatness of trajectory...and surely other things as well.</p><p></p><p>The above is based only on a flat fire situation shooting over FLAT ground.</p><p></p><p>YMMV,</p><p>JB</p></blockquote><p></p>
[QUOTE="jb1000br, post: 80518, member: 1459"] Well, when this question comes up, you will always get both answers...shown here. I have seen more evidence of a HEADWIND RAISING POI AT LONG RANGE. But it makes more sense that it would do the reverse at short range... WHY? On its way to 1000yds the bullet spend more time CLIMBING then FALLING, so why wouldnt a headwind give the bullet LOFT? At close range, the trajectory is probably flat enough that it is as simple as the wind adding and subtracting from velocity, meaning a HEADWIND WOULD LOWER POI Now how bout 2000yds+ The bullet is much slower further out and angling toward earth, so here, the loft may even out the added drop, or the headwind may end up causing a total effect lowering POI -- i cant say much here because i have not fired in enough varied conditions past 1mile to see a pattern. Personally i think the answer depends on the distance you are shooting, and the flatness of trajectory...and surely other things as well. The above is based only on a flat fire situation shooting over FLAT ground. YMMV, JB [/QUOTE]
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Effects of wind?
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