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Rifles, Reloading, Optics, Equipment
Gunsmithing
lapping bar size?
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<blockquote data-quote="bruce_ventura" data-source="post: 1028115" data-attributes="member: 34084"><p>1.000, +/- .003 is what I use. Drill rod works fine. The lapping compound will increase the diameter about .002. Most rings also flex a little when tightened, so a final ring diameter within about .003" of the scope tube diameter seems to work well. </p><p></p><p> </p><p>I agree, solvent wiping doesn't completely remove lapping compound from the ring. I've found that lapping compound does comes off with Scotch tape, however. I first clean the ring with alcohol. I then lay a piece of tape over the lapped surface, press it in with my finger, then pull it off. Repeat and all lapping compound is gone. </p><p></p><p>I always use RingTrue tape after lapping. <a href="http://www.highpoweroptics.com/ringtrueÂ&trade;-tape-three-scopes-p-24944.html" target="_blank">http://www.highpoweroptics.com/ringtrueÂ&trade;-tape-three-scopes-p-24944.html</a></p></blockquote><p></p>
[QUOTE="bruce_ventura, post: 1028115, member: 34084"] 1.000, +/- .003 is what I use. Drill rod works fine. The lapping compound will increase the diameter about .002. Most rings also flex a little when tightened, so a final ring diameter within about .003" of the scope tube diameter seems to work well. I agree, solvent wiping doesn't completely remove lapping compound from the ring. I've found that lapping compound does comes off with Scotch tape, however. I first clean the ring with alcohol. I then lay a piece of tape over the lapped surface, press it in with my finger, then pull it off. Repeat and all lapping compound is gone. I always use RingTrue tape after lapping. [URL]http://www.highpoweroptics.com/ringtrue™-tape-three-scopes-p-24944.html[/URL] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Gunsmithing
lapping bar size?
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