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Hunting
Extreme Long Range Hunting & Shooting (ELR)
temperature effect
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<blockquote data-quote="aroshtr" data-source="post: 716845" data-attributes="member: 9176"><p>Crosswind will effect your vertical impact. How much is the tough part. For a Right to Left wind you will hit higher, and a Left to Right wind you will hit lower. From my basic understanding it is the same effect as spin drift. In a no wind condition the right twist spinning bullet is falling through air which has higher pressure on the bottom of the bullet and it tracks right slightly like a spinning tire (Spin Drift). Same think happens in the wind when there is more pressure on one side of the bullet. I know Bryan Litz has a calculation for this in his book, but I don't have it, and probably could not make sense of the calculation. I would take a wild *** guess that in a 10mph wind the vertical drift might be close to the amount of spin drift your bullet would experience. Maybe someone who understands this better could chime in with some real calculations.</p></blockquote><p></p>
[QUOTE="aroshtr, post: 716845, member: 9176"] Crosswind will effect your vertical impact. How much is the tough part. For a Right to Left wind you will hit higher, and a Left to Right wind you will hit lower. From my basic understanding it is the same effect as spin drift. In a no wind condition the right twist spinning bullet is falling through air which has higher pressure on the bottom of the bullet and it tracks right slightly like a spinning tire (Spin Drift). Same think happens in the wind when there is more pressure on one side of the bullet. I know Bryan Litz has a calculation for this in his book, but I don't have it, and probably could not make sense of the calculation. I would take a wild *** guess that in a 10mph wind the vertical drift might be close to the amount of spin drift your bullet would experience. Maybe someone who understands this better could chime in with some real calculations. [/QUOTE]
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