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Rifles, Reloading, Optics, Equipment
Reloading
Newbie needing help
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<blockquote data-quote="Deputy819" data-source="post: 1426628" data-attributes="member: 98025"><p>Yep....what Lonewolf74 said. Here's one way that I measure neck thickness in order to determine loaded round diameter. I'll use a vernier ball micrometer and take a reading of neck wall thickness of several cases. Get the average of those readings and multiply that figure by 2 and then add my bullet diameter to that figure which results in the loaded round diameter. Then I'll order a bushing .001-.003 less for proper neck tension. You could always get some sort of Concentricity Gauge (you'll want one eventually) and use it to determine neck thickness if it has the capability. Just follow the same formula....multiply the initial reading by 2 and then add bullet diameter to get the loaded round diameter. I have a Forster CoAx Case Inspector and it is spot on in agreement with a vernier micrometer.</p></blockquote><p></p>
[QUOTE="Deputy819, post: 1426628, member: 98025"] Yep....what Lonewolf74 said. Here's one way that I measure neck thickness in order to determine loaded round diameter. I'll use a vernier ball micrometer and take a reading of neck wall thickness of several cases. Get the average of those readings and multiply that figure by 2 and then add my bullet diameter to that figure which results in the loaded round diameter. Then I'll order a bushing .001-.003 less for proper neck tension. You could always get some sort of Concentricity Gauge (you'll want one eventually) and use it to determine neck thickness if it has the capability. Just follow the same formula....multiply the initial reading by 2 and then add bullet diameter to get the loaded round diameter. I have a Forster CoAx Case Inspector and it is spot on in agreement with a vernier micrometer. [/QUOTE]
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