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Scope leveling idea
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<blockquote data-quote="ntsqd" data-source="post: 1980146" data-attributes="member: 93138"><p>Being involved in designing production tools I don't see how that Wheeler system establishes a physical datum plane on the rifle, and without that you've got nothing that is repeatable. There needs to be some feature or set of features on the action that are used to define a datum plane. From there you can determine level. </p><p></p><p>Clamping something to the barrel, with no means of indexing it to a physical datum on the action, does nothing to determine level. All that the adjustment does is fool the operator into thinking that they've found "level". At least the lower level in the pic below references something repeatable, the bolt raceways. the upper level in the pic below is useless. It is just too bad that those tools are too cheaply made and flexible themselves.</p><p><img src="https://www.wheelertools.com/dw/image/v2/BCNX_PRD/on/demandware.static/-/Sites-wheeler-master/default/dwd3b3a4b8/images/113088/original/113088-NEW_L-L-L_Product_Shot_Qrtrd_Above.jpg?sw=2000&sh=1128" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>When the scope is in on a pictinny rail, and the top of the rail is known to be parallel to the bore center-line and it's horizontal plane, then the Arisaka leveling tool is a reasonable method for squaring the scope. It uses the technique previously mentioned of using the bottom of the scope body as a reference.</p><p></p><p><img src="https://cdn.shopify.com/s/files/1/0659/4513/products/leveler-1_f06eff7e-24ad-4885-8ee1-f5b4b02ff36a.jpg?v=1588265716" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="ntsqd, post: 1980146, member: 93138"] Being involved in designing production tools I don't see how that Wheeler system establishes a physical datum plane on the rifle, and without that you've got nothing that is repeatable. There needs to be some feature or set of features on the action that are used to define a datum plane. From there you can determine level. Clamping something to the barrel, with no means of indexing it to a physical datum on the action, does nothing to determine level. All that the adjustment does is fool the operator into thinking that they've found "level". At least the lower level in the pic below references something repeatable, the bolt raceways. the upper level in the pic below is useless. It is just too bad that those tools are too cheaply made and flexible themselves. [IMG]https://www.wheelertools.com/dw/image/v2/BCNX_PRD/on/demandware.static/-/Sites-wheeler-master/default/dwd3b3a4b8/images/113088/original/113088-NEW_L-L-L_Product_Shot_Qrtrd_Above.jpg?sw=2000&sh=1128[/IMG] When the scope is in on a pictinny rail, and the top of the rail is known to be parallel to the bore center-line and it's horizontal plane, then the Arisaka leveling tool is a reasonable method for squaring the scope. It uses the technique previously mentioned of using the bottom of the scope body as a reference. [IMG]https://cdn.shopify.com/s/files/1/0659/4513/products/leveler-1_f06eff7e-24ad-4885-8ee1-f5b4b02ff36a.jpg?v=1588265716[/IMG] [/QUOTE]
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