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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Question abt Leupold Boone & Crocket 3.5-10: Second scale on power ring
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<blockquote data-quote="sscoyote" data-source="post: 242761" data-attributes="member: 1133"><p>...but if u're going to try and use the reticle to rangefind u may as well use it as effectively as possible. What i use is a modification of the mil-ranging formula that's described here--</p><p><a href="http://www.ottllc.com/specialtypistols/sp20.pdf" target="_blank">www.ottllc.com/specialtypistols/sp20.pdf</a> under Item C) Reticle Rangefinding</p><p></p><p>With the B&C reticle just bracket the 16" tgt. between X and 3rd stadia down (6.55 inch per hundred yds.) @ the optics highest power. If he fits perfectly he's 245 yds. away ( 16 x 100 / 6.55 / 1.0 = 244). If he fills 90% (.9) he's 270 yds. away (16 x 100 / 6.55 / 0.9 = 271). Here's the rest of the ranging chart for the 16" tgt.--</p><p></p><p>.8 = 305</p><p>stadia # 2 = 320</p><p>.7 = 350</p><p>.6 = 407</p><p>.5 = 490</p></blockquote><p></p>
[QUOTE="sscoyote, post: 242761, member: 1133"] ...but if u're going to try and use the reticle to rangefind u may as well use it as effectively as possible. What i use is a modification of the mil-ranging formula that's described here-- [url]www.ottllc.com/specialtypistols/sp20.pdf[/url] under Item C) Reticle Rangefinding With the B&C reticle just bracket the 16" tgt. between X and 3rd stadia down (6.55 inch per hundred yds.) @ the optics highest power. If he fits perfectly he's 245 yds. away ( 16 x 100 / 6.55 / 1.0 = 244). If he fills 90% (.9) he's 270 yds. away (16 x 100 / 6.55 / 0.9 = 271). Here's the rest of the ranging chart for the 16" tgt.-- .8 = 305 stadia # 2 = 320 .7 = 350 .6 = 407 .5 = 490 [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Question abt Leupold Boone & Crocket 3.5-10: Second scale on power ring
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