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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Leveling your scope
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<blockquote data-quote="Kevin Cram" data-source="post: 254478" data-attributes="member: 2215"><p>That is a good question Varmint Hunter, but how do we know the outside of the barrel is true to the centerline of the bore with the EXD. The EXD centers itself in a V-block to the ouside of the barrel and to the bell of the scope. How are either of these positively true to centerline of the bore? How do we know the bore is cut exactly through the center and not off the one side. If you put centers in each end of a barrel and spin the barrel in a lathe you will see that alot of barrels run out of round from bore to outside. </p><p> </p><p>The raceways are either broached or wire edm'd parrallel to each other during machining. The guard screws are then drilled and tapped perpendicular to the raceways. The scope base holes are then drilled and tapped in reference to the guard screws. The raceways give you a parrallel surface from which to reference the reticle of the scope in the same plane.</p></blockquote><p></p>
[QUOTE="Kevin Cram, post: 254478, member: 2215"] That is a good question Varmint Hunter, but how do we know the outside of the barrel is true to the centerline of the bore with the EXD. The EXD centers itself in a V-block to the ouside of the barrel and to the bell of the scope. How are either of these positively true to centerline of the bore? How do we know the bore is cut exactly through the center and not off the one side. If you put centers in each end of a barrel and spin the barrel in a lathe you will see that alot of barrels run out of round from bore to outside. The raceways are either broached or wire edm'd parrallel to each other during machining. The guard screws are then drilled and tapped perpendicular to the raceways. The scope base holes are then drilled and tapped in reference to the guard screws. The raceways give you a parrallel surface from which to reference the reticle of the scope in the same plane. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Leveling your scope
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