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Long Range Hunting & Shooting
Leupold base and rings
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<blockquote data-quote="MontanaRifleman" data-source="post: 321766" data-attributes="member: 11717"><p>I hang a plumb bob to align my scope with the center of the bore. I align the verticle (windage) reticle with the string, eyeballed to center of bore.</p><p> </p><p>To confirm and fine tune it, take a 4' scrap peice of cardboard or plywood and draw a straightline on it. Then draw a perfectly perpedicular line across the first line and set the cardboard up plumb @ 100 yds. Shoot a 2 or 3 shot group for center, then adjust your elevation up 20 MOA (~21") and shoot another 2 or 3 shot group, then adjust down 40 MOA (20 MOA below zero) and shoot again, then back to zero and shoot again. Your zero groups should be right on the verticle line If your scope is canted, the top and bottom groups should be the same distance on opposite sides of the line. You can also check the reliability of your scopes tracking this way.</p><p> </p><p>Just another way to do it.</p><p> </p><p>Mark</p></blockquote><p></p>
[QUOTE="MontanaRifleman, post: 321766, member: 11717"] I hang a plumb bob to align my scope with the center of the bore. I align the verticle (windage) reticle with the string, eyeballed to center of bore. To confirm and fine tune it, take a 4' scrap peice of cardboard or plywood and draw a straightline on it. Then draw a perfectly perpedicular line across the first line and set the cardboard up plumb @ 100 yds. Shoot a 2 or 3 shot group for center, then adjust your elevation up 20 MOA (~21") and shoot another 2 or 3 shot group, then adjust down 40 MOA (20 MOA below zero) and shoot again, then back to zero and shoot again. Your zero groups should be right on the verticle line If your scope is canted, the top and bottom groups should be the same distance on opposite sides of the line. You can also check the reliability of your scopes tracking this way. Just another way to do it. Mark [/QUOTE]
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