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Rifles, Reloading, Optics, Equipment
Reloading
FL shoulder bump question
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<blockquote data-quote="RegionRat" data-source="post: 2748298" data-attributes="member: 57231"><p>Using typical tooling and a caliper, you could expect to see a 2 mil uncertainty just measuring any one sample over and over.</p><p></p><p>In industry, we have to assume that much just based on the caliper, the tooling, the nature of the sample being non-rigid and less than perfectly smooth, etc.. </p><p></p><p>If we gave a group of operators the same tools and a caliper, and ask the group to measure the same Go-Gage and go around several times each, we would get a 2 mil variance on a good day, and worse on a bad day. And a Go-Gage is far smoother and more rigid than an actual sample of cartridge brass.</p><p></p><p>Your numbers are normal and if you keep them there you are doing above average. If you ever have some change laying around... buy yourself the Go-Gage and practice with that before any session and drop back to it whenever you start wondering about your work.</p></blockquote><p></p>
[QUOTE="RegionRat, post: 2748298, member: 57231"] Using typical tooling and a caliper, you could expect to see a 2 mil uncertainty just measuring any one sample over and over. In industry, we have to assume that much just based on the caliper, the tooling, the nature of the sample being non-rigid and less than perfectly smooth, etc.. If we gave a group of operators the same tools and a caliper, and ask the group to measure the same Go-Gage and go around several times each, we would get a 2 mil variance on a good day, and worse on a bad day. And a Go-Gage is far smoother and more rigid than an actual sample of cartridge brass. Your numbers are normal and if you keep them there you are doing above average. If you ever have some change laying around... buy yourself the Go-Gage and practice with that before any session and drop back to it whenever you start wondering about your work. [/QUOTE]
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FL shoulder bump question
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