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Rifles, Reloading, Optics, Equipment
Gunsmithing
McMillan Fitment Issues
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<blockquote data-quote="sable tireur" data-source="post: 2817105" data-attributes="member: 27307"><p>McMillan should have been your first call in order to resolve this issue of barrel contour. McMillan doesn't even provide inletting services anymore, they contract it out to another supplier. Given the rapidly increasing number of carbon fiber barrels being produced in the U.S., the contractor may be the one making the mistake. </p><p></p><p>Inlets are usually completed using CNC work centers. These have a memory source which contains all the programs and subroutines necessary to fulfill the required work. They select from the list of contours and make sure the right tools are loaded in the tool changer. But, given the potential for thicker or thinner carbon fiber, inaccurate original barrel turning relief for that CF, lack of control exercised over the contour dimensions, the possibility of error grows. Even more likely is that the wrong program was selected accidentally for your contour. High speed manufacturing is unforgiving where program selections are concerned.</p><p></p><p>Wait for McMillan to answer.</p><p></p><p><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="sable tireur, post: 2817105, member: 27307"] McMillan should have been your first call in order to resolve this issue of barrel contour. McMillan doesn't even provide inletting services anymore, they contract it out to another supplier. Given the rapidly increasing number of carbon fiber barrels being produced in the U.S., the contractor may be the one making the mistake. Inlets are usually completed using CNC work centers. These have a memory source which contains all the programs and subroutines necessary to fulfill the required work. They select from the list of contours and make sure the right tools are loaded in the tool changer. But, given the potential for thicker or thinner carbon fiber, inaccurate original barrel turning relief for that CF, lack of control exercised over the contour dimensions, the possibility of error grows. Even more likely is that the wrong program was selected accidentally for your contour. High speed manufacturing is unforgiving where program selections are concerned. Wait for McMillan to answer. :) [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Gunsmithing
McMillan Fitment Issues
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