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Hunting
Long Range Hunting & Shooting
scope lost zero when maxed out
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<blockquote data-quote="Hugnot" data-source="post: 2678697" data-attributes="member: 115658"><p>When the elevation is close to maximum erector tube spring tension is near minimum & optical quality might be compromised as the reticle is far off center.</p><p></p><p>I shoot a 6.5 CM, 8 twist, with 140-147's at 2650-2800 - not as flat as 6.5 PRC. My scope is a low budget Sightron, STAC 4-20X50, 30mm tube, MOA2 reticle. I have a 20MOA rail & Burris 30mm Sig rings with eccentric inserts. This allows the scope to be mounted with the reticle close to center (elevation & windage) with maximum reticle elevation adjustment & little optic compromise. Good & complete spring tension thru out elevation adjustments. I use hash marks above horizontal cross hair for targets under 200 yards. Should I run out of elevation adjustments I can use hash marks below horizontal cross hair but need to remember to have the scope set at 20X, 2nd focal plane scope.</p></blockquote><p></p>
[QUOTE="Hugnot, post: 2678697, member: 115658"] When the elevation is close to maximum erector tube spring tension is near minimum & optical quality might be compromised as the reticle is far off center. I shoot a 6.5 CM, 8 twist, with 140-147's at 2650-2800 - not as flat as 6.5 PRC. My scope is a low budget Sightron, STAC 4-20X50, 30mm tube, MOA2 reticle. I have a 20MOA rail & Burris 30mm Sig rings with eccentric inserts. This allows the scope to be mounted with the reticle close to center (elevation & windage) with maximum reticle elevation adjustment & little optic compromise. Good & complete spring tension thru out elevation adjustments. I use hash marks above horizontal cross hair for targets under 200 yards. Should I run out of elevation adjustments I can use hash marks below horizontal cross hair but need to remember to have the scope set at 20X, 2nd focal plane scope. [/QUOTE]
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scope lost zero when maxed out
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