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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Do you always lap your scope rings?
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<blockquote data-quote="osok-1k" data-source="post: 1731205" data-attributes="member: 106259"><p>I used to lap every time I built a rifle, now I bed them. It's easier, cleaner and faster. I got an older Rem 700 bdl with the best bolt timing and fit I've seen on a factory Remington so I really want to keep this action, I mounted some Talleys and my alignment bar didn't even touch the rear mount when flat on the front mount so I installed a one piece pic rail, snugged the two front screws and had a 1/16 gap at the rear. I bedded the rear section and it works fine, point is that actions are not always square and true. One could lap a set of rings , but in a case like mine it would substantially change the dimensions of the ring and bedding becomes the obvious choice. Another concern with lapping is that you remove the surface finish and unless you can refinish the rings you could run onto corrosion issues.</p><p>As to screw hole being out of alignment, a proper remedy would be to weld the existing holes, mount the action in a true jig on a good mill and re-drill and tap the holes in alignment with the bolt bore. Lots of work and only worth it if hole are out by quite a bit. I saw where a gunsmith would install the rings on the action mounted in a machining jig and run a ball mill concentric to the bolt bore to true the rings to the action. It works but again, unless one has that equipment and know how...</p></blockquote><p></p>
[QUOTE="osok-1k, post: 1731205, member: 106259"] I used to lap every time I built a rifle, now I bed them. It's easier, cleaner and faster. I got an older Rem 700 bdl with the best bolt timing and fit I've seen on a factory Remington so I really want to keep this action, I mounted some Talleys and my alignment bar didn't even touch the rear mount when flat on the front mount so I installed a one piece pic rail, snugged the two front screws and had a 1/16 gap at the rear. I bedded the rear section and it works fine, point is that actions are not always square and true. One could lap a set of rings , but in a case like mine it would substantially change the dimensions of the ring and bedding becomes the obvious choice. Another concern with lapping is that you remove the surface finish and unless you can refinish the rings you could run onto corrosion issues. As to screw hole being out of alignment, a proper remedy would be to weld the existing holes, mount the action in a true jig on a good mill and re-drill and tap the holes in alignment with the bolt bore. Lots of work and only worth it if hole are out by quite a bit. I saw where a gunsmith would install the rings on the action mounted in a machining jig and run a ball mill concentric to the bolt bore to true the rings to the action. It works but again, unless one has that equipment and know how... [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Do you always lap your scope rings?
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