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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Help Mounting and Bore Sighting Scope
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<blockquote data-quote="Argon Glen" data-source="post: 1971949" data-attributes="member: 104643"><p>Years ago I bought a rifle and had an unused scope mounted on it. I never used it until recently when I took a long range shooting class. It was then that I found I could not dial past 400 yards (turret ran out). Ideally the scope was not what I wanted anyway so rather than try to resolve the issue I bought a new one.</p><p></p><p>I removed the old scope and rings, attached the new rings to the existing 2-piece Picatinny rail, and wasn't able to bore sight the new scope. I found that even with elevation turned all with way down the cross hairs were still about 18 mils high (at 32 yards). That's 62 MoA. Given two scopes, with only the rail in common, have an elevation problem I started measuring the two pieces of Picatinny. They seem to be the same, neither seems to have any angle to it. Regardless, I started swapping their positions and rotating them in hopes that some different orientation would fix the problem. No luck.</p><p></p><p>What am I missing? How do I go about fixing this? Are there 70(+) MoA rails?!</p><p></p><p>* Sako A7 300 Win Mag</p><p>* Previous scope - Zeiss Conquest 6.5-20x50 (MoA-MoA, gunsmith that mounted the scope provided 2-piece Pic rail and rings)</p><p>* New scope - Nightforce NX8 4-32x50 F1 (Mil-Mil, new Nightforce rings)</p><p></p><p>Thank you.</p></blockquote><p></p>
[QUOTE="Argon Glen, post: 1971949, member: 104643"] Years ago I bought a rifle and had an unused scope mounted on it. I never used it until recently when I took a long range shooting class. It was then that I found I could not dial past 400 yards (turret ran out). Ideally the scope was not what I wanted anyway so rather than try to resolve the issue I bought a new one. I removed the old scope and rings, attached the new rings to the existing 2-piece Picatinny rail, and wasn't able to bore sight the new scope. I found that even with elevation turned all with way down the cross hairs were still about 18 mils high (at 32 yards). That's 62 MoA. Given two scopes, with only the rail in common, have an elevation problem I started measuring the two pieces of Picatinny. They seem to be the same, neither seems to have any angle to it. Regardless, I started swapping their positions and rotating them in hopes that some different orientation would fix the problem. No luck. What am I missing? How do I go about fixing this? Are there 70(+) MoA rails?! * Sako A7 300 Win Mag * Previous scope - Zeiss Conquest 6.5-20x50 (MoA-MoA, gunsmith that mounted the scope provided 2-piece Pic rail and rings) * New scope - Nightforce NX8 4-32x50 F1 (Mil-Mil, new Nightforce rings) Thank you. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Help Mounting and Bore Sighting Scope
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