Bedding versus lapping of scope rings

Discussion in 'Advanced Gunsmithing & Engineering' started by FilippoMo, May 22, 2019.

  1. FilippoMo

    FilippoMo

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    Is there any evidence of superiority of bedding versus lapping of scope rings
    regards
    Filippo
     
  2. LC Tikka

    LC Tikka

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    May 13, 2013
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    Bedding is always a better fit. Fit the scope, bore sight, lap if not we'll aligned with a bar wrapped in Emery tape, then bed the bottoms, bore sight again while bedding is wet, align and tape to stop scope movement. Make 2 pine wood saddles and wedges to pop the scope out. Ring top holes are usually loose enough to allow even settling on the tube.
     
  3. Ledd Slinger

    Ledd Slinger Gold $$ Contributor

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    Yes. Bedding with JB Weld gives full scope body to ring contact and provides a superior non-slip gripping surface.

    Lapping alone just takes down the high spots. Does not give full contact and does not increase ring surface friction coefficient.

    Of course you lap the rings before you bed them.
     
  4. SRM

    SRM

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    Would it potentially decrease ringing the tube?
     
  5. Ledd Slinger

    Ledd Slinger Gold $$ Contributor

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    Considering scope ring screws are torqued to spec:
    Lapping decreases the chance of leaving ring marks on a scope tube exponentially. Bedding the rings (properly) eliminates the chance of scope tube ring marks completely.
     
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  6. WayneShaw

    WayneShaw

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    Lapping usually will eliminate scope rings if lapped enough. You have to watch that the rings still have a gap to tighten. Bedding will fix both problems.
     
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  7. swd

    swd Gold $$ Contributor

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    Do both. Some rings/bases have a slight twist to them. Lapping will remove the tight spots. Bedding after that will give the best contact.
     
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