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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Leupold Gurus
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<blockquote data-quote="sscoyote" data-source="post: 78298" data-attributes="member: 1133"><p>Thks. Bob-- appreciate the vote of confidence.</p><p></p><p>VH-- i also have 1 of those VH reticles also on a Savage Striker 243 WSSM, and the windage system is about 1/2 the rated windage values. Borrowing the info Bob put up on the drift figures here's how i do it. 1st off i convert the reticle and windage figures to MOA as follows from Bob's calcs.--</p><p></p><p>yds.----- reticle----- Amax drift @ 10 mph</p><p></p><p>200-------1.77 MOA----- .9 MOA </p><p></p><p>300-------2.85----------1.4</p><p></p><p>400-------4.1-----------1.9</p><p></p><p>500-------5.5-----------2.4</p><p></p><p>Now divide the MOA windage figures by their respective reticle subtensions in MOA to reference windage quickly in tenths of each subtension, like this--</p><p></p><p>200 = .9/1.77 = .5 of the total "200 yd." stadia unit</p><p></p><p>300 = 1.4/2.85 = .5 "300 yd." stadia unit</p><p></p><p>400 = 1.9/4.1 = .5</p><p></p><p>500 = .4</p><p></p><p>Should be easy enuf to reference just like the mil-dot guys use for windage holdoffs with a chart or range sticker on the scope. I also use the lower post as a zero @ 9.35 MOA, AND I ALSO PUT THE 1/2 WAY POINT BETWEEN EACH STADIA FOR ZEROING AND WINDAGE on the sticker using the calc'd windage stadia subtension above as a reference.</p><p></p><p>Now while i was calculating this stuff i happened to notice something interesting. There may be an error in the posted 500 yd. MOA calcs. on the Leupold website here--</p><p><a href="http://www.leupold.com/products/Info_Ballistic_Aiming_System.htm" target="_blank">http://www.leupold.com/products/Info_Ballistic_Aiming_System.htm</a></p><p></p><p>If u notice the 500 yd. windage is displayed as 25.87"-- which should calculate to 4.9 MOA (25.87/5/1.05) not 5.49 as they have calculated--IF MY CALCS. ARE CORRECT. If my calcs actually r correct (possibly a big IF) it looks like all their 500 yd. stuff is off some. Interesting, any comments?????</p></blockquote><p></p>
[QUOTE="sscoyote, post: 78298, member: 1133"] Thks. Bob-- appreciate the vote of confidence. VH-- i also have 1 of those VH reticles also on a Savage Striker 243 WSSM, and the windage system is about 1/2 the rated windage values. Borrowing the info Bob put up on the drift figures here's how i do it. 1st off i convert the reticle and windage figures to MOA as follows from Bob's calcs.-- yds.----- reticle----- Amax drift @ 10 mph 200-------1.77 MOA----- .9 MOA 300-------2.85----------1.4 400-------4.1-----------1.9 500-------5.5-----------2.4 Now divide the MOA windage figures by their respective reticle subtensions in MOA to reference windage quickly in tenths of each subtension, like this-- 200 = .9/1.77 = .5 of the total "200 yd." stadia unit 300 = 1.4/2.85 = .5 "300 yd." stadia unit 400 = 1.9/4.1 = .5 500 = .4 Should be easy enuf to reference just like the mil-dot guys use for windage holdoffs with a chart or range sticker on the scope. I also use the lower post as a zero @ 9.35 MOA, AND I ALSO PUT THE 1/2 WAY POINT BETWEEN EACH STADIA FOR ZEROING AND WINDAGE on the sticker using the calc'd windage stadia subtension above as a reference. Now while i was calculating this stuff i happened to notice something interesting. There may be an error in the posted 500 yd. MOA calcs. on the Leupold website here-- [url="http://www.leupold.com/products/Info_Ballistic_Aiming_System.htm"]http://www.leupold.com/products/Info_Ballistic_Aiming_System.htm[/url] If u notice the 500 yd. windage is displayed as 25.87"-- which should calculate to 4.9 MOA (25.87/5/1.05) not 5.49 as they have calculated--IF MY CALCS. ARE CORRECT. If my calcs actually r correct (possibly a big IF) it looks like all their 500 yd. stuff is off some. Interesting, any comments????? [/QUOTE]
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