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Rifles, Reloading, Optics, Equipment
Gunsmithing
lapping bar size?
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<blockquote data-quote="Trickymissfit" data-source="post: 1027965" data-attributes="member: 25383"><p>I made several of them out of left over pieces of Thompson Rod. The stuff is hard, and round & strait. Use the standard grade and not the precision grade. It will be just about .001" under size. I also done it with drill rod, and the results are similar. Ideally, I think .002" undersize would be best. Might get there with some of the cheap grades of drill rod.</p><p> </p><p>DO NOT use lapping compound!!!! It will embed in the rings and ruin the scope tube on down the road. Somebody sells a "non charging" lapping compound, and it just washes out of the metal with a little lighter fluid. Comes in a yellow powder form, and you mix a little bit in three in one oil. </p><p> </p><p>gary</p></blockquote><p></p>
[QUOTE="Trickymissfit, post: 1027965, member: 25383"] I made several of them out of left over pieces of Thompson Rod. The stuff is hard, and round & strait. Use the standard grade and not the precision grade. It will be just about .001" under size. I also done it with drill rod, and the results are similar. Ideally, I think .002" undersize would be best. Might get there with some of the cheap grades of drill rod. DO NOT use lapping compound!!!! It will embed in the rings and ruin the scope tube on down the road. Somebody sells a "non charging" lapping compound, and it just washes out of the metal with a little lighter fluid. Comes in a yellow powder form, and you mix a little bit in three in one oil. gary [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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lapping bar size?
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