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Rifles, Reloading, Optics, Equipment
Reloading
Purpose of bullet jump
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<blockquote data-quote="Mikecr" data-source="post: 1776929" data-attributes="member: 1521"><p>I don't think seating tests indicate tuning at all.</p><p>The adjustments affect tune, but that don't mean they are actually a part of tune.</p><p>I think seating adjustments establish quality of bullet interfacing with the bore (better/worse).</p><p></p><p>With this, and witnessing seating adjustments having a huge affect to results(way beyond any powder adj), I consider FULL seating testing to be prerequisite to the tuning phase. Same with primer swapping (another prerequisite)(not tuning).</p><p>So I do this type of testing during fire forming of brass, and far away from any expected tune.</p><p></p><p>Now, before dismissing my notion on this, which is new to you I'm sure, keep in mind that truths pass ALL tests.</p><p>The prior discussions right here point out a <u>failure</u> in the standard seating tuning ideas.</p><p>For example:</p><p>-----------------------------------------------------------------------</p><p>If bullet seating is tuning, then why would the shape of a bullet nose (tangent/secant/hybrid) w/resp to land relationship, make any difference?</p><p>Wouldn't 20thou OTL mean the same to tune with any bullet nose shape?</p><p>-----------------------------------------------------------------------</p><p>In fact, the example chosen 20thou OTL does mean the same -to tune -for any ogive shape. Yet that relationship may be horrible for one ogive type, while great for another (in YOUR bore). The results can be different while tune is not different. This, even with utmost precision in tension and load density compensated for,, one kernel of powder at a time.</p><p>Therefore, good/bad results from differing ogive type & relationship with lands has nothing to do with tune.</p><p></p><p>Can anybody provide information indicating a failure of my notion?</p><p>If you can, in any regard, then I'm wrong.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 1776929, member: 1521"] I don't think seating tests indicate tuning at all. The adjustments affect tune, but that don't mean they are actually a part of tune. I think seating adjustments establish quality of bullet interfacing with the bore (better/worse). With this, and witnessing seating adjustments having a huge affect to results(way beyond any powder adj), I consider FULL seating testing to be prerequisite to the tuning phase. Same with primer swapping (another prerequisite)(not tuning). So I do this type of testing during fire forming of brass, and far away from any expected tune. Now, before dismissing my notion on this, which is new to you I'm sure, keep in mind that truths pass ALL tests. The prior discussions right here point out a [U]failure[/U] in the standard seating tuning ideas. For example: ----------------------------------------------------------------------- If bullet seating is tuning, then why would the shape of a bullet nose (tangent/secant/hybrid) w/resp to land relationship, make any difference? Wouldn't 20thou OTL mean the same to tune with any bullet nose shape? ----------------------------------------------------------------------- In fact, the example chosen 20thou OTL does mean the same -to tune -for any ogive shape. Yet that relationship may be horrible for one ogive type, while great for another (in YOUR bore). The results can be different while tune is not different. This, even with utmost precision in tension and load density compensated for,, one kernel of powder at a time. Therefore, good/bad results from differing ogive type & relationship with lands has nothing to do with tune. Can anybody provide information indicating a failure of my notion? If you can, in any regard, then I'm wrong. [/QUOTE]
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Purpose of bullet jump
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