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Extreme Long Range Hunting & Shooting (ELR)
Data for shooting at higher elevations
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<blockquote data-quote="LRNut" data-source="post: 2240201" data-attributes="member: 3230"><p>I don't see any velocity deviation when going from 1200 to 8750 elevation. You will hit higher and the effects of wind are a bit less than at sea level or close to it. As I have said before, elevation makes far more difference than temperature. In CO I shoot from 40 to 80, and frankly, don't see that much of a difference - maybe one click at 80 vs 40. On the other hand, my impact at 715 is about 1 MOA higher if I don't adjust.</p><p></p><p>One way to minimize the effects of temp and altitude is to shoot as high of a BC as you can; if you plot the difference in impact at various altitudes or temperatures, you will see that curve flattens out. In other words, there is a much larger difference between BCs of .4 to .5 than from .7 to .8 - you get diminishing returns. On the other hand, the reduction in BC due to a change in temp or altitude has less of an impact with a higher BC.</p></blockquote><p></p>
[QUOTE="LRNut, post: 2240201, member: 3230"] I don't see any velocity deviation when going from 1200 to 8750 elevation. You will hit higher and the effects of wind are a bit less than at sea level or close to it. As I have said before, elevation makes far more difference than temperature. In CO I shoot from 40 to 80, and frankly, don't see that much of a difference - maybe one click at 80 vs 40. On the other hand, my impact at 715 is about 1 MOA higher if I don't adjust. One way to minimize the effects of temp and altitude is to shoot as high of a BC as you can; if you plot the difference in impact at various altitudes or temperatures, you will see that curve flattens out. In other words, there is a much larger difference between BCs of .4 to .5 than from .7 to .8 - you get diminishing returns. On the other hand, the reduction in BC due to a change in temp or altitude has less of an impact with a higher BC. [/QUOTE]
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Data for shooting at higher elevations
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