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Rifles, Reloading, Optics, Equipment
AR15/10 Rifles
Reloading for Gas Guns?
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<blockquote data-quote="Phil3" data-source="post: 801034" data-attributes="member: 17575"><p>I would say if the neck is not centered on the case axis, which I often find to be the case in new brass, then you could see the same wobble in the neck, even if the head is square to the case body. I am also referring to brass that has minimal neck thickness variation, which with a keen eye, might be seen as neck wobble. </p><p> </p><p>I could not really use the setup you describe, because a non-flat case head may have a surface like a potato chip, rocking on its bottom, making it impossible to apply consistent force to the side and down while rotating and observing. Perhaps my measuring skills are just not up to snuff. I found using the case body held straight in the lathe and measuring run out on the case head to .0001" work better for me, even if the case head is a much smaller dimension to measure. </p><p> </p><p>I am trying to figure a way to use a piece of bar stock in the lathe, with a hole bored down the middle so the case head can rest flat against the bottom. It may be cocked to a tweaked case head, but that's fine, that is what we are measuring. I just need to find a way to hold the case in whatever position it seeks. Then I can use a test indicator to measure how much the case wobbles. </p><p> </p><p>Phil</p></blockquote><p></p>
[QUOTE="Phil3, post: 801034, member: 17575"] I would say if the neck is not centered on the case axis, which I often find to be the case in new brass, then you could see the same wobble in the neck, even if the head is square to the case body. I am also referring to brass that has minimal neck thickness variation, which with a keen eye, might be seen as neck wobble. I could not really use the setup you describe, because a non-flat case head may have a surface like a potato chip, rocking on its bottom, making it impossible to apply consistent force to the side and down while rotating and observing. Perhaps my measuring skills are just not up to snuff. I found using the case body held straight in the lathe and measuring run out on the case head to .0001" work better for me, even if the case head is a much smaller dimension to measure. I am trying to figure a way to use a piece of bar stock in the lathe, with a hole bored down the middle so the case head can rest flat against the bottom. It may be cocked to a tweaked case head, but that's fine, that is what we are measuring. I just need to find a way to hold the case in whatever position it seeks. Then I can use a test indicator to measure how much the case wobbles. Phil [/QUOTE]
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Rifles, Reloading, Optics, Equipment
AR15/10 Rifles
Reloading for Gas Guns?
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