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Rifles, Reloading, Optics, Equipment
Gunsmithing
Shear grinding Lathe tools
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<blockquote data-quote="J E Custom" data-source="post: 1470722" data-attributes="member: 2736"><p>As soon as I can figure out how to post pictures from my phone I will show some of the examples of some of the reasons for re-contouring.</p><p></p><p>Some of the things I have found are from the factory sanding. Many have flat spots because the operator did not use the sander correctly. others have a straight bore but a out of concentric OD to the bore from a poor contouring. (Normally from to much tool pressure. not to</p><p>long ago, I re-contoured a custom barrel simply to make it lighter for my friend it had a factory sanded finish and when I finished contouring, the new cut area was a better finish than the factory sanded finish. I start contouring with a carbide tool to reduce the size and change to a high speed tool for the last few cuts. I layout the starting points and the shank location I need to best fit the stock and work from there. In the picture you can see the improvement over the sanded part of the barrel. Hope fully I can get my friend to help me post some of the pictures of past projects.</p><p></p><p>I think I have figured out the parameters for a better cut finish, but was just wanting to see if the shear tool would do even better.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1470722, member: 2736"] As soon as I can figure out how to post pictures from my phone I will show some of the examples of some of the reasons for re-contouring. Some of the things I have found are from the factory sanding. Many have flat spots because the operator did not use the sander correctly. others have a straight bore but a out of concentric OD to the bore from a poor contouring. (Normally from to much tool pressure. not to long ago, I re-contoured a custom barrel simply to make it lighter for my friend it had a factory sanded finish and when I finished contouring, the new cut area was a better finish than the factory sanded finish. I start contouring with a carbide tool to reduce the size and change to a high speed tool for the last few cuts. I layout the starting points and the shank location I need to best fit the stock and work from there. In the picture you can see the improvement over the sanded part of the barrel. Hope fully I can get my friend to help me post some of the pictures of past projects. I think I have figured out the parameters for a better cut finish, but was just wanting to see if the shear tool would do even better. J E CUSTOM [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Shear grinding Lathe tools
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