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Rifles, Reloading, Optics, Equipment
Reloading
Find seating depth or powder charge first on VLD's?
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<blockquote data-quote="Mikecr" data-source="post: 909172" data-attributes="member: 1521"><p>And I hope someday to understand it.</p><p>I have read all my life implications of seating as an extension of powder, and yet this flat out fails tests. They truly seem independent and still produce similar results(but separately). </p><p>I can make a solid 1/4moa barrel open to +3/4moa with seating adjustment, even when I normalize MV to the adjustment. No amount or type of powder change would affect results so much (300%), but there are also distinct nodes here as well.</p><p>When both node types overlap, we call it a great tune.</p><p></p><p>So given that there are seating nodes, and they hold based on bullet rather than load, what is a seating node causing?</p><p>I've wondered if seating is shaping the pressure peak, which could hold unique character of it's own regardless of the curve further produced throughout the full length of bore(normalized).</p><p>I'd love to see seating adjustments with a strain gauge/pressure trace on a barrel.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 909172, member: 1521"] And I hope someday to understand it. I have read all my life implications of seating as an extension of powder, and yet this flat out fails tests. They truly seem independent and still produce similar results(but separately). I can make a solid 1/4moa barrel open to +3/4moa with seating adjustment, even when I normalize MV to the adjustment. No amount or type of powder change would affect results so much (300%), but there are also distinct nodes here as well. When both node types overlap, we call it a great tune. So given that there are seating nodes, and they hold based on bullet rather than load, what is a seating node causing? I've wondered if seating is shaping the pressure peak, which could hold unique character of it's own regardless of the curve further produced throughout the full length of bore(normalized). I'd love to see seating adjustments with a strain gauge/pressure trace on a barrel. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Find seating depth or powder charge first on VLD's?
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