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Rifles, Reloading, Optics, Equipment
Reloading
Neck turning...min neck thickness
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<blockquote data-quote="ntsqd" data-source="post: 1936460" data-attributes="member: 93138"><p>The best way that I know of to determine what the chamber neck size is, would be to take a casting of it. A fired case is going to have spring-back in it and won't tell you the exact neck size in the chamber. For example, even if you spec'd a .268" neck in your .243 AI chamber how do you <em>know</em> that is what you got? It might have been reamed .272".....</p><p></p><p>[URL unfurl="true"]https://www.brownells.com/gunsmith-tools-supplies/barrel-tools/barrel-chamfering-accessories/cerrosafe-chamber-casting-alloy-prod384.aspx[/URL]</p><p></p><p>Note that in the directions for use that <em>when</em> you measure this product after pouring the casting will make a difference in the dimension that you get, but that the dimension vs. age curve is consistent and well known.</p></blockquote><p></p>
[QUOTE="ntsqd, post: 1936460, member: 93138"] The best way that I know of to determine what the chamber neck size is, would be to take a casting of it. A fired case is going to have spring-back in it and won't tell you the exact neck size in the chamber. For example, even if you spec'd a .268" neck in your .243 AI chamber how do you [I]know[/I] that is what you got? It might have been reamed .272"..... [URL unfurl="true"]https://www.brownells.com/gunsmith-tools-supplies/barrel-tools/barrel-chamfering-accessories/cerrosafe-chamber-casting-alloy-prod384.aspx[/URL] Note that in the directions for use that [I]when[/I] you measure this product after pouring the casting will make a difference in the dimension that you get, but that the dimension vs. age curve is consistent and well known. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Neck turning...min neck thickness
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