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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Zeiss ZRF Range finding Reticle
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<blockquote data-quote="sscoyote" data-source="post: 74637" data-attributes="member: 1133"><p>It appears to be simply a ranging reticle system with a series of hashmarks that r supposed to range a 50cm. target @100, 200, 300, etc.- 600 meters. It is a series of lines in the right lower quadrant of the reticle, and u're supposed to bracket the 50 cm. tgt. (deer, i guess) between x-hair and each line, and simply read off the # of each line which is supposed to be multipied by 100, and that's the range. Nice for 50 cm. tgts. but for anything else u would need to recalibrate it once subtensions are known. Now, what u can do is simply apply a modified mil-ranging formula to use it (or any other reticle for that matter to range any size tgt. with any reticle subtension once the subtension is known)-- here's a link to an article that describes the "modified mil-ranging formula" or better yet let's just call it the "stadia-ranging formula" since it's not specific to the mil-dot.</p><p></p><p><a href="http://www.ottllc.com/specialtypistols/sp20.pdf" target="_blank">www.ottllc.com/specialtypistols/sp20.pdf</a> Part C) Reticle Rangefinding, Sections 1 and 2</p><p></p><p>Although the ZRF is nice, i prefer a reticle that provides downrange reticle zeroing, and windage reference as well. The ZRF could be adapted for both, but it would be difficult.</p></blockquote><p></p>
[QUOTE="sscoyote, post: 74637, member: 1133"] It appears to be simply a ranging reticle system with a series of hashmarks that r supposed to range a 50cm. target @100, 200, 300, etc.- 600 meters. It is a series of lines in the right lower quadrant of the reticle, and u're supposed to bracket the 50 cm. tgt. (deer, i guess) between x-hair and each line, and simply read off the # of each line which is supposed to be multipied by 100, and that's the range. Nice for 50 cm. tgts. but for anything else u would need to recalibrate it once subtensions are known. Now, what u can do is simply apply a modified mil-ranging formula to use it (or any other reticle for that matter to range any size tgt. with any reticle subtension once the subtension is known)-- here's a link to an article that describes the "modified mil-ranging formula" or better yet let's just call it the "stadia-ranging formula" since it's not specific to the mil-dot. [url="http://www.ottllc.com/specialtypistols/sp20.pdf"]www.ottllc.com/specialtypistols/sp20.pdf[/url] Part C) Reticle Rangefinding, Sections 1 and 2 Although the ZRF is nice, i prefer a reticle that provides downrange reticle zeroing, and windage reference as well. The ZRF could be adapted for both, but it would be difficult. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Zeiss ZRF Range finding Reticle
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