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Rifles, Reloading, Optics, Equipment
Reloading
Decreasing bullet runout during bullet seating
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<blockquote data-quote="Mikecr" data-source="post: 917285" data-attributes="member: 1521"><p>You're seeing less runout because the Hornady is greatly inferior to the Sinclair V-block for measuring runout, and neck bending does not actually reduce runout. </p><p></p><p>BPUU, that your fired runout as measured on necks did not increase with collet neck sizing means whatever thickness variance you have in the brass is still internal. It wasn't driven outward. Then you seat bullets into this internal runout, and see the result of it while measuring off bullet noses.</p><p>You need to expand necks to drive thickness variance outward. With this, seated necks will measure higher runout, but lower off bullets(because they will be seated straighter).</p><p>I recommend Sinclair's expander die system for this.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 917285, member: 1521"] You're seeing less runout because the Hornady is greatly inferior to the Sinclair V-block for measuring runout, and neck bending does not actually reduce runout. BPUU, that your fired runout as measured on necks did not increase with collet neck sizing means whatever thickness variance you have in the brass is still internal. It wasn't driven outward. Then you seat bullets into this internal runout, and see the result of it while measuring off bullet noses. You need to expand necks to drive thickness variance outward. With this, seated necks will measure higher runout, but lower off bullets(because they will be seated straighter). I recommend Sinclair's expander die system for this. [/QUOTE]
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Reloading
Decreasing bullet runout during bullet seating
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