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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Scope Turret Calibration
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<blockquote data-quote="Mikecr" data-source="post: 1205300" data-attributes="member: 1521"><p>From what I've read & with some testing on my part, I believe relatively few scopes actually adjust in true MOA. Of mine, NF NXS do not, my Leupold Mk4s do.</p><p>That is, Mk4s truly adjust at .262 IPHY per click.</p><p></p><p>Now you might generalize -what difference could these little numbers make?</p><p>If you take the notion that 1moa is ~1 inch per hundred yards, that's only 0.0118" off per click, right? How could that matter?</p><p>Well, multiply that error x 200 clicks(50moa) to get to 1kyds, and it adds to 2.36" off.</p><p>2.36@1kyd = .225moa</p><p>Where your accuracy goal is 1/2moa, losing 45% of it(.225/.500) by 1kyd -to error -sucks. </p><p>1/2moa of ACCURACY is tough enough for me without this error. I already have wind hold-off, Bullet variance, air densities, spin drift, horiz/vert coriolis, slope, ES, mirage, level,, and a horsefly on my nose..</p><p></p><p>I don't think OP's observation was purely due to scope, or that there was a scope 'problem'. But I believe some of the cure is a ballistic solution that accounts for actual IPHY of click value.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 1205300, member: 1521"] From what I've read & with some testing on my part, I believe relatively few scopes actually adjust in true MOA. Of mine, NF NXS do not, my Leupold Mk4s do. That is, Mk4s truly adjust at .262 IPHY per click. Now you might generalize -what difference could these little numbers make? If you take the notion that 1moa is ~1 inch per hundred yards, that's only 0.0118" off per click, right? How could that matter? Well, multiply that error x 200 clicks(50moa) to get to 1kyds, and it adds to 2.36" off. 2.36@1kyd = .225moa Where your accuracy goal is 1/2moa, losing 45% of it(.225/.500) by 1kyd -to error -sucks. 1/2moa of ACCURACY is tough enough for me without this error. I already have wind hold-off, Bullet variance, air densities, spin drift, horiz/vert coriolis, slope, ES, mirage, level,, and a horsefly on my nose.. I don't think OP's observation was purely due to scope, or that there was a scope 'problem'. But I believe some of the cure is a ballistic solution that accounts for actual IPHY of click value. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Scope Turret Calibration
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