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Rifles, Reloading, Optics, Equipment
Reloading
Best method to measure headspace?
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<blockquote data-quote="Mikecr" data-source="post: 2993550" data-attributes="member: 1521"><p>I fully fire form, with nothing but neck sizing, until the brass has run out of headspace.</p><p>This usually takes 3-4 firings (depending on shoulder angle).</p><p>Then I strip the bolt, chamber, bump, repeat, until the bolt handle just drops with a whisper of resistance.</p><p>That is my zero HS, which I measure with a gizzy/caliper and log.</p><p>It's from there that I set my sizing die to shoulder bump 1-1.5thou. I always measure every case I reload to see this bump is right.</p><p></p><p>My 'gizzy' is usually a barrel stub with a shoulder & neck cut from my reamer when the barrel was finished.</p><p>You can buy them as standard & caliper attachments I guess, but I would never rely on anything based off SAAMI for reloading..</p><p>That would be different than My chambers attached to MY actions.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 2993550, member: 1521"] I fully fire form, with nothing but neck sizing, until the brass has run out of headspace. This usually takes 3-4 firings (depending on shoulder angle). Then I strip the bolt, chamber, bump, repeat, until the bolt handle just drops with a whisper of resistance. That is my zero HS, which I measure with a gizzy/caliper and log. It's from there that I set my sizing die to shoulder bump 1-1.5thou. I always measure every case I reload to see this bump is right. My 'gizzy' is usually a barrel stub with a shoulder & neck cut from my reamer when the barrel was finished. You can buy them as standard & caliper attachments I guess, but I would never rely on anything based off SAAMI for reloading.. That would be different than My chambers attached to MY actions. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Best method to measure headspace?
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