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Rifles, Reloading, Optics, Equipment
Reloading
Help - bullet runout
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<blockquote data-quote="4SFED" data-source="post: 1642552" data-attributes="member: 17346"><p>Just because the neck is on center after sizing doesn't mean that it's straight. When expanding the neck, variations in case thickness can cause it to have a small angle ... epecially when using an expander ball. That angle shows up as runout at the tip of the bullet. A bullet seater will not straighten an angled neck, but if the neck is straight, the bullet will seat with minimal runout. </p><p></p><p>Check a few sized cases. Find a gage pin or another piece of round stock that is a tight slip fit in the case neck, and check the runout of the gage pin at the same distance from the case as a bullet. Mark the high spot, then insert a bullet. I'll bet the runout runout will match that of the gage pin.</p></blockquote><p></p>
[QUOTE="4SFED, post: 1642552, member: 17346"] Just because the neck is on center after sizing doesn't mean that it's straight. When expanding the neck, variations in case thickness can cause it to have a small angle ... epecially when using an expander ball. That angle shows up as runout at the tip of the bullet. A bullet seater will not straighten an angled neck, but if the neck is straight, the bullet will seat with minimal runout. Check a few sized cases. Find a gage pin or another piece of round stock that is a tight slip fit in the case neck, and check the runout of the gage pin at the same distance from the case as a bullet. Mark the high spot, then insert a bullet. I'll bet the runout runout will match that of the gage pin. [/QUOTE]
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Help - bullet runout
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