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Long Range Hunting & Shooting
Scope issue
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<blockquote data-quote="Greyfox" data-source="post: 1099951" data-attributes="member: 10291"><p>At that distance spin drift would only be around 2 inches, less than your 12" error. I would suspect that your scope is canted left. The fairly tight 5" group would suggest that you are leveling your crosshairs fairly consistently. My suggestion would be to set up a tall target at 100 yards that has a 20-30" plumbed verical line with a target dot at the bottom. Shoot one group at the lower dot, then another 20-30 MOA elevated either with your turret or reticle(you didn't specify your elevation method). It's important that your rifle is consistenly level when doing this. Many use a scope level once everything is plumbed up. Once you are perfectly aligned you have the option of either building in cant for spin drift which is approximately .5MOA, or just correcting at the shot with a windage adjustment. While doing this tall test, you also have the option to check your scopes click value accuracy by measuring the distance between the two groups and comparing the that actual distance against the number of elevation clicks.</p></blockquote><p></p>
[QUOTE="Greyfox, post: 1099951, member: 10291"] At that distance spin drift would only be around 2 inches, less than your 12" error. I would suspect that your scope is canted left. The fairly tight 5" group would suggest that you are leveling your crosshairs fairly consistently. My suggestion would be to set up a tall target at 100 yards that has a 20-30" plumbed verical line with a target dot at the bottom. Shoot one group at the lower dot, then another 20-30 MOA elevated either with your turret or reticle(you didn't specify your elevation method). It's important that your rifle is consistenly level when doing this. Many use a scope level once everything is plumbed up. Once you are perfectly aligned you have the option of either building in cant for spin drift which is approximately .5MOA, or just correcting at the shot with a windage adjustment. While doing this tall test, you also have the option to check your scopes click value accuracy by measuring the distance between the two groups and comparing the that actual distance against the number of elevation clicks. [/QUOTE]
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