Thread: Headspace
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Old December 29, 2018, 01:55 PM   #18
T. O'Heir
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Join Date: February 13, 2002
Location: Canada
Posts: 11,131
"...the ejector and or the firing pin push the case..." No, they don't.
"...The amount of head space..." Head space is a rifle manufacturing tolerance that allows ammunition from all manufacturers to be used in a like chambered rifle.
"...why it's called head space..." It's literally space for the head of the cartridge. Where it's measured from(isn't actually measured by head space gauges. Those only tell you if the head space is within tolerance.) is different according to the type of case.
"...As a reloader..." Cartridges do not have head space. Hence reloading has nothing to do with it. Nor can you adjust or fix bad head Space by doing anything to the case.
Do not get your education via You Tube. Read some books.
As much as I dislike using Wikipedia as a source, their article on head space is pretty good. https://en.wikipedia.org/wiki/Headspace_(firearms)
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