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Concentricity Question
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<blockquote data-quote="Barrelnut" data-source="post: 1403464" data-attributes="member: 74902"><p>Interesting, that makes sense, I guess. Never tried to measure that directly. Usually that sort of gauge setup is used to measure the wall thickness of the neck. I think having the mandrel inserted in the neck would just cause a bit of neck wobble because the neck wall variance is now pushed to the inside? So not certain how valid that measurement is. Also, if neck wall thickness varies around the neck, you would think that brass spring back would vary around the neck too and skew the results somewhat. Seems the high spots in the neck would have to be turned, so the necks would be the same thickness all the way around.</p></blockquote><p></p>
[QUOTE="Barrelnut, post: 1403464, member: 74902"] Interesting, that makes sense, I guess. Never tried to measure that directly. Usually that sort of gauge setup is used to measure the wall thickness of the neck. I think having the mandrel inserted in the neck would just cause a bit of neck wobble because the neck wall variance is now pushed to the inside? So not certain how valid that measurement is. Also, if neck wall thickness varies around the neck, you would think that brass spring back would vary around the neck too and skew the results somewhat. Seems the high spots in the neck would have to be turned, so the necks would be the same thickness all the way around. [/QUOTE]
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