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Rifles, Reloading, Optics, Equipment
Reloading
Measuring OAL in precision ammo...
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<blockquote data-quote="Mikecr" data-source="post: 779183" data-attributes="member: 1521"><p>I agree with Richard. A few of my guns significantly respond to seating changes(moreso than ANY powder amount change).</p><p></p><p>I don't agree with the ascertions about bullet dimensions affecting your seating results. </p><p>W/Regard to seating/measurement:</p><p>Base length doesn't matter</p><p>Bearing length doesn't matter</p><p>Nose length doesn't matter</p><p>Ogive radius variances are countered in measured-vs-actual seating depth</p><p></p><p>With a longer ogive radius measurement datum moves up the nose -the same amount the seater plug moves up the nose -to cause deeper seating, countering would-be variance in measure.</p><p>Seating can be set EXACTLY with any or all of the above variances.</p><p></p><p>Biggest contributors to bad seating: threaded die/press seating(instead of inline/arbor), and seating force variance/excess seating forces.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 779183, member: 1521"] I agree with Richard. A few of my guns significantly respond to seating changes(moreso than ANY powder amount change). I don't agree with the ascertions about bullet dimensions affecting your seating results. W/Regard to seating/measurement: Base length doesn't matter Bearing length doesn't matter Nose length doesn't matter Ogive radius variances are countered in measured-vs-actual seating depth With a longer ogive radius measurement datum moves up the nose -the same amount the seater plug moves up the nose -to cause deeper seating, countering would-be variance in measure. Seating can be set EXACTLY with any or all of the above variances. Biggest contributors to bad seating: threaded die/press seating(instead of inline/arbor), and seating force variance/excess seating forces. [/QUOTE]
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Reloading
Measuring OAL in precision ammo...
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