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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Too little headspace?
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<blockquote data-quote="elkaholic" data-source="post: 3035137" data-attributes="member: 13833"><p>We intentionally only run .002" head space from my brass to chamber on new brass. The reason .005 seems like a lot to you is because a lot of commercial ammo has far too much head space. They do that to make sure it will chamber in about anything, but its not a good thing otherwise. Its hard on brass and not conducive to great accuracy. If I were you, I would buy a shoulder bump gauge and not count on the std die instructions of letting the die touch your shell holder with the ram fully up. All that does is get you somewhat in the ball park. Brass fully formed in your chamber should generally be bumped about .002" and you can only achieve that with good measurements. If you don't measure, you can do a careful trial and error. Start with slight bolt close resistance and go back in very small adjustments on the die until there is no resistance, and you'll be close.</p></blockquote><p></p>
[QUOTE="elkaholic, post: 3035137, member: 13833"] We intentionally only run .002" head space from my brass to chamber on new brass. The reason .005 seems like a lot to you is because a lot of commercial ammo has far too much head space. They do that to make sure it will chamber in about anything, but its not a good thing otherwise. Its hard on brass and not conducive to great accuracy. If I were you, I would buy a shoulder bump gauge and not count on the std die instructions of letting the die touch your shell holder with the ram fully up. All that does is get you somewhat in the ball park. Brass fully formed in your chamber should generally be bumped about .002" and you can only achieve that with good measurements. If you don't measure, you can do a careful trial and error. Start with slight bolt close resistance and go back in very small adjustments on the die until there is no resistance, and you'll be close. [/QUOTE]
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Too little headspace?
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