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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Ballistic mil dot question
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<blockquote data-quote="sscoyote" data-source="post: 71591" data-attributes="member: 1133"><p>Pretty good BuffaloBob-- the system is based on a ratio and proportion calculation, since as magnification changes so does reticle subtension-- BUT it's an inversely proportional formula since as magnification INCREASES, reticle subtension DECREASES-- and it's all right here--</p><p></p><p><a href="http://www.ottllc.com/specialtypistols/sp20.pdf" target="_blank">www.ottllc.com/specialtypistols/sp20.pdf</a></p><p></p><p>under 4A-- subtension changes with magnification changes.</p><p></p><p>We actually used this system in the field once to shoot pr. dogs @ 250-300 yds. with a kids 22 LR-- and it was just an approximation on his plex post tip reticle subtension (which turned out to be right on luckily), at 6 MOA @ 9X, and 18MOA @ 3X on a 3-9X Simmons.</p><p>Hope it helps some</p></blockquote><p></p>
[QUOTE="sscoyote, post: 71591, member: 1133"] Pretty good BuffaloBob-- the system is based on a ratio and proportion calculation, since as magnification changes so does reticle subtension-- BUT it's an inversely proportional formula since as magnification INCREASES, reticle subtension DECREASES-- and it's all right here-- [url="http://www.ottllc.com/specialtypistols/sp20.pdf"]www.ottllc.com/specialtypistols/sp20.pdf[/url] under 4A-- subtension changes with magnification changes. We actually used this system in the field once to shoot pr. dogs @ 250-300 yds. with a kids 22 LR-- and it was just an approximation on his plex post tip reticle subtension (which turned out to be right on luckily), at 6 MOA @ 9X, and 18MOA @ 3X on a 3-9X Simmons. Hope it helps some [/QUOTE]
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Ballistic mil dot question
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