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Rifles, Reloading, Optics, Equipment
Reloading
Calipers, micrometer, & dial indicator - one not like the others
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<blockquote data-quote="nheninge" data-source="post: 269513" data-attributes="member: 13085"><p>The terminology here I think is absolute vs. relative measurements. Neck variance and runout on dial mics are only a relative measurement. Ball mics etc are absolute. However like boomtube states you need some measure of confidence in a known value. At least two should be used of different sizes to determine flat error (0.002 off throughout the range) vs. increasing/decreasing error as the measurement range changes.</p></blockquote><p></p>
[QUOTE="nheninge, post: 269513, member: 13085"] The terminology here I think is absolute vs. relative measurements. Neck variance and runout on dial mics are only a relative measurement. Ball mics etc are absolute. However like boomtube states you need some measure of confidence in a known value. At least two should be used of different sizes to determine flat error (0.002 off throughout the range) vs. increasing/decreasing error as the measurement range changes. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Calipers, micrometer, & dial indicator - one not like the others
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