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Long Range Hunting & Shooting
Cosine indicator question
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<blockquote data-quote="jwp475" data-source="post: 211002" data-attributes="member: 3776"><p>Yes it applies it all right, but it has been proven and Shawn made a great post awhile back explaining why after a certain distanace that useing the cosine on the drops did not work accurately. Using the cosine to multiply the MOA by does not take into account the parabolic curve of the bullets flght nor does it take into account the additional time of flight. If your distance is not too long then the cosine applied to the MOA works reasonabley well, but at the longer distances you will be off useing this system.</p><p> That is why in my first answer to the original post I stated "The Same" as niether method is 100% accurate when compared to a quality ballistics targeting soft ware program.</p><p> Call Perry sustems and ask them if you do not believe me.</p></blockquote><p></p>
[QUOTE="jwp475, post: 211002, member: 3776"] Yes it applies it all right, but it has been proven and Shawn made a great post awhile back explaining why after a certain distanace that useing the cosine on the drops did not work accurately. Using the cosine to multiply the MOA by does not take into account the parabolic curve of the bullets flght nor does it take into account the additional time of flight. If your distance is not too long then the cosine applied to the MOA works reasonabley well, but at the longer distances you will be off useing this system. That is why in my first answer to the original post I stated "The Same" as niether method is 100% accurate when compared to a quality ballistics targeting soft ware program. Call Perry sustems and ask them if you do not believe me. [/QUOTE]
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