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Bedding two-piece rings

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Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: July/10/2012 at 12:24
tsvalli View Drop Down
Optics GrassHopper
Optics GrassHopper


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Hello, I am a new member and enjoy learning from you on this site - thank you.

I read that , instead-of or in-addition-to ring lapping, some epoxy-bed their rings.There are good amount of resources on how to do it.

However, would someone ever bed the two-piece rings - the rings with the vertical line of cut (Warne permanent rings are the example)? How would you lap these?
 
Ring type example:
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: July/10/2012 at 12:31
Bigdaddy0381 View Drop Down
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Georgia peach

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tsvalli, welcome

Check this thread out.

http://www.opticstalk.com/ring-lapping_topic32801.html


http://www.opticstalk.com/ring-lapping_topic32801.html
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: July/10/2012 at 16:49
tsvalli View Drop Down
Optics GrassHopper
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That is a great write-up. Thank you.
 
Still it does not say about the vertical split rings. Both pieces are attached to the base.
Do I bed both sides of each ring? Or should I not bed these types of rings at all?
 
I got a one-piece steel base that I am about to bed and a set of steel vetical-split bases.
 
Thank you.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: July/10/2012 at 16:49
tsvalli View Drop Down
Optics GrassHopper
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correction .. vetical-split rings.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: July/10/2012 at 17:20
RifleDude View Drop Down
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It's virtually impossible to properly lap vertically split rings because both sides "float" on the bases, and neither side is rigidly attached to the base, which is critical for maintaining lapping rod alignment.

Bedding 2-pc bases with vertically split rings is a little tricky.  I've never tried bedding 2 pc bases for vertically split style rings, so I don't have a good answer.  I'm sure it can be done, but I can't think of a good way to do it offhand.  You have to install the rings onto an alignment rod, and you can't do that independent of also rigidly attaching the rings to the bases in order to maintain alignment.  However, on most vertically split rings, the rings obscure at least one of the screw holes in the base, so it's hard to establish initial spacing and alignment against the receiver, yet keep the rings and bases rigidly attached to the alignment rod while setting up the epoxy. 

I have bedded horizontally split rings w/ 2 pc bases and 1 pc bases, and it's not that hard to do.

Luckily, the vertically split rings kinda self-align by virtue of the fact both ring halves "float" and have some angular mounting latitude against the bases, so maybe base bedding and lapping isn't really needed with that style of rings.
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