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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Anyone using the Horus Reticle?
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<blockquote data-quote="LouBoyd" data-source="post: 592254" data-attributes="member: 9253"><p>That little caveat of "reduce the variation in point of impact to nearly just the wind estimation error" is largest and most ignored problem. Wind vector measurements taken at the shooter location no matter how accurate they are, are not adequate for predicting downrange wind deflection at ranges and conditions where the total wind deflecion is several times the acceptable shooting error. No commercial wind meter I know of has the ability to compensate for downrange wind. It's up to that "well-trained shooter" to decide if the wind over the bullets trajectory can be determined well enough and to make the necessary corrections. Learning to dope wind by other methods than a local wind meter and shooter judgement of the accuracy of their wind esitmates are still as necessary as they were before ballistic computers and precision wind meters became available. The technology for an insturment to measure downrange crosswind may become commercially available in the near future but it's not here now. </p><p></p><p>Any long range shooter should do their own tests to determine how much their point of aim differs from point of impact with whatever method of determining wind deflection they use. If that method does not do a reliable job of achieving an acceptable kill zone in the conditions they shoot the only solutions are to recduce the distance, only shoot in calm conditions, or find a better method of predicting wind deflection.</p></blockquote><p></p>
[QUOTE="LouBoyd, post: 592254, member: 9253"] That little caveat of "reduce the variation in point of impact to nearly just the wind estimation error" is largest and most ignored problem. Wind vector measurements taken at the shooter location no matter how accurate they are, are not adequate for predicting downrange wind deflection at ranges and conditions where the total wind deflecion is several times the acceptable shooting error. No commercial wind meter I know of has the ability to compensate for downrange wind. It's up to that "well-trained shooter" to decide if the wind over the bullets trajectory can be determined well enough and to make the necessary corrections. Learning to dope wind by other methods than a local wind meter and shooter judgement of the accuracy of their wind esitmates are still as necessary as they were before ballistic computers and precision wind meters became available. The technology for an insturment to measure downrange crosswind may become commercially available in the near future but it's not here now. Any long range shooter should do their own tests to determine how much their point of aim differs from point of impact with whatever method of determining wind deflection they use. If that method does not do a reliable job of achieving an acceptable kill zone in the conditions they shoot the only solutions are to recduce the distance, only shoot in calm conditions, or find a better method of predicting wind deflection. [/QUOTE]
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Long Range Scopes and Other Optics
Anyone using the Horus Reticle?
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