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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Objective way to level crosshair
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<blockquote data-quote="fj40mojo" data-source="post: 331042" data-attributes="member: 19129"><p>I found my old post and copied and pasted this.</p><p></p><p></p><p></p><p>My ideology here is that the goal is to align the reticle vertically with the bore. I find a machined surface somewhere on the bottom of the action (whether that is the recoil lug or the actual bottom of the action) and use a precision ground block to support the action. This means that my action is now in a parallel attitude with my reference surface. Then I'm using a precision ground tool (square) to establish a vertical line from the same reference surface that I then align the vertical crosshair with. Everything is referenced off of the same surface and a machined surface of the action. It works for me, and as a machinist it makes sense to me to use the same techniques an inspector would use. If I had a 100yard long granite surface plate I would use that, but to my knowlege no one has one of those. It's not as complicated as it sounds and the tools are inexpensive and accurate.</p></blockquote><p></p>
[QUOTE="fj40mojo, post: 331042, member: 19129"] I found my old post and copied and pasted this. My ideology here is that the goal is to align the reticle vertically with the bore. I find a machined surface somewhere on the bottom of the action (whether that is the recoil lug or the actual bottom of the action) and use a precision ground block to support the action. This means that my action is now in a parallel attitude with my reference surface. Then I'm using a precision ground tool (square) to establish a vertical line from the same reference surface that I then align the vertical crosshair with. Everything is referenced off of the same surface and a machined surface of the action. It works for me, and as a machinist it makes sense to me to use the same techniques an inspector would use. If I had a 100yard long granite surface plate I would use that, but to my knowlege no one has one of those. It's not as complicated as it sounds and the tools are inexpensive and accurate. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Objective way to level crosshair
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