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Rifles, Reloading, Optics, Equipment
Reloading
Run-out: what do you do?
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<blockquote data-quote="Mikecr" data-source="post: 982080" data-attributes="member: 1521"><p>Case runout is caused mainly by two things:</p><p>- Thickness variance</p><p>- Sizing of that thickness variance</p><p>The greater of one or the other, or both, the greater the runout.</p><p>Lugs out of true, and bad chamber can also create issues here(but rare). Poor bullet seating contributes to higher loaded runout.</p><p></p><p>I cull cases initially by thickness variance as measured with a ball mic mid necks.</p><p>I size minimally across the board, and always expand necks with a mandrel before bullet seating.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 982080, member: 1521"] Case runout is caused mainly by two things: - Thickness variance - Sizing of that thickness variance The greater of one or the other, or both, the greater the runout. Lugs out of true, and bad chamber can also create issues here(but rare). Poor bullet seating contributes to higher loaded runout. I cull cases initially by thickness variance as measured with a ball mic mid necks. I size minimally across the board, and always expand necks with a mandrel before bullet seating. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Run-out: what do you do?
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