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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Using Quick Load for Optimum Barrel Timing and OCW Node Matches
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<blockquote data-quote="Veteran" data-source="post: 3000735" data-attributes="member: 118038"><p>Mike, This is a several step process.</p><p></p><p>Running QL or GRT to get a bullet exit time for a given bullet and powder charge tells you nothing.</p><p></p><p>First you have to review the Chris Long paper and his theory on frequency and harmonic nodes.</p><p>His calculation is supposed to tell you at what time the bbl. is pointing consistently in the same direction.</p><p>You have to use his spreadsheet to calc. those OCW milliseconds, you then use GRT and or QL to find a bullet/powder combination that gives you a bullet exit timing that matches most closely with the Chris Long Harmonic Node bullet exit time when the barrel is consistently pointing in the same direction.</p><p></p><p>Haral's work using Finite Element Analysis is similar.</p><p></p><p>There are several steps, and several programs involved in these estimates.</p><p></p><p>They are not spot on, but in my experience get you close enough to save time and components.</p><p></p><p>But, its not something done with or by GRT or QL alone.</p></blockquote><p></p>
[QUOTE="Veteran, post: 3000735, member: 118038"] Mike, This is a several step process. Running QL or GRT to get a bullet exit time for a given bullet and powder charge tells you nothing. First you have to review the Chris Long paper and his theory on frequency and harmonic nodes. His calculation is supposed to tell you at what time the bbl. is pointing consistently in the same direction. You have to use his spreadsheet to calc. those OCW milliseconds, you then use GRT and or QL to find a bullet/powder combination that gives you a bullet exit timing that matches most closely with the Chris Long Harmonic Node bullet exit time when the barrel is consistently pointing in the same direction. Haral's work using Finite Element Analysis is similar. There are several steps, and several programs involved in these estimates. They are not spot on, but in my experience get you close enough to save time and components. But, its not something done with or by GRT or QL alone. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Using Quick Load for Optimum Barrel Timing and OCW Node Matches
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