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Rifles, Reloading, Optics, Equipment
Reloading
Headspace Variance
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<blockquote data-quote="boomtube" data-source="post: 402156" data-attributes="member: 9215"><p>"Seems like the explosion of the powder should conform the brass to the chamber dimension each time the same way irregardless of the brass."</p><p> </p><p>It does, fully. But, you're measuring fired cases that have expanded and shrunk back a tad and your gage is showing you that some tads are greater than others; it's a good tool. You will also find simular differences after you ever so carefully FL size your cases, the shoulders just won't be at the same place each time, especially if you get sloppy and inconsistant with the press lever. Dealing with those small variations is part of life for reloaders.</p><p> </p><p>Depriming before measuring will make no difference at all with that gage.</p></blockquote><p></p>
[QUOTE="boomtube, post: 402156, member: 9215"] "Seems like the explosion of the powder should conform the brass to the chamber dimension each time the same way irregardless of the brass." It does, fully. But, you're measuring fired cases that have expanded and shrunk back a tad and your gage is showing you that some tads are greater than others; it's a good tool. You will also find simular differences after you ever so carefully FL size your cases, the shoulders just won't be at the same place each time, especially if you get sloppy and inconsistant with the press lever. Dealing with those small variations is part of life for reloaders. Depriming before measuring will make no difference at all with that gage. [/QUOTE]
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Reloading
Headspace Variance
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