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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Mounting an anti-cant bubble level
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<blockquote data-quote="Dave King" data-source="post: 82607" data-attributes="member: 3"><p>Dave Wilson</p><p></p><p> You mention the <em>"...it doesn't matter where the X is pointing,because it will always be perpendicular to the Z."</em> but the problem is that the anti-cant level (X) can be mounted so that it's not perpendicular to scope centerline (Z). That's the problem as I see it, mis-matched or not perpendicular X and Z. The little B-Square levels and possible others of this type can be skewed a bit when mounting and they're so short that even a little skew make for a significant error. </p><p></p><p></p><p>R W Leonard</p><p></p><p> I believe you have the idea.</p><p></p><p> The scope level isn't on the 'true' X,Y,Z axis intersection with all angles perpendicular. It's probably better described as mounted on the plane of the X, Y and Z with the X and Y axes perpendicular but the X and Z axes NOT perpendicular. The angle of intersection of the centerline of the anticant level (X axis plane)isn't 90 degrees to the centerline of the rifle scope or rifle bore on the Z axis plane. As you describe, when the rifle muzzle is elevated or depressed the rifle must be canted to correct for the anti-cant level mounting error.</p><p></p><p></p><p></p><p>I believe I'm going to mill a device for my Picatinny rail that has a bubble on the Z axis and a bubble on the X. Also this device will be hard milled at a 90 degree intersection on the Z and X. In essence I'll have an anti-cant and inclinometer as you mention.</p></blockquote><p></p>
[QUOTE="Dave King, post: 82607, member: 3"] Dave Wilson You mention the [i]"...it doesn't matter where the X is pointing,because it will always be perpendicular to the Z."[/i] but the problem is that the anti-cant level (X) can be mounted so that it's not perpendicular to scope centerline (Z). That's the problem as I see it, mis-matched or not perpendicular X and Z. The little B-Square levels and possible others of this type can be skewed a bit when mounting and they're so short that even a little skew make for a significant error. R W Leonard I believe you have the idea. The scope level isn't on the 'true' X,Y,Z axis intersection with all angles perpendicular. It's probably better described as mounted on the plane of the X, Y and Z with the X and Y axes perpendicular but the X and Z axes NOT perpendicular. The angle of intersection of the centerline of the anticant level (X axis plane)isn't 90 degrees to the centerline of the rifle scope or rifle bore on the Z axis plane. As you describe, when the rifle muzzle is elevated or depressed the rifle must be canted to correct for the anti-cant level mounting error. I believe I'm going to mill a device for my Picatinny rail that has a bubble on the Z axis and a bubble on the X. Also this device will be hard milled at a 90 degree intersection on the Z and X. In essence I'll have an anti-cant and inclinometer as you mention. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Mounting an anti-cant bubble level
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