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Rifles, Reloading, Optics, Equipment
Reloading
HELP WITH SATERLEE VELOCITY TEST
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<blockquote data-quote="entoptics" data-source="post: 1958221" data-attributes="member: 104268"><p>I've never seen anyone do the same test 5 times and post their results. You know why? Most people find their keys in the last place they look...</p><p></p><p>Please post your targets or chrony results that show 5X reproducibility if you have them. Anyone else who doesn't believe that normally distributed variation is a real thing, please attempt this experiment yourself, and post the results.</p><p></p><p>In fact, I have tried 3 times (e.g. 3 shot per charge, round robbin, ladders at distance, using a LabRadar so recording vertical and velocity), and have never once seen the same "node" 3 times. On two different occasions in the last couple years, I also shot 2 shot per charge ladders at distance, realized I hadn't gotten to maximum pressure, so I then repeated the test a week or so later, overlapping the first test's top "node", and low and behold it was gone, or had moved up a charge weight or two. In other words, it was completely predictable random variation in a small sample set.</p><p></p><p>To be clear, I don't think OCW/Charge/Satterlee nodes exist. There's no credible explanation for the process. That being said, vertical/horizontal stringing nodes (i.e. "Ladders") <em><u>may</u></em> exist due to harmonic "whip", but the rifle/shooter/ammunition combo that's necessary to actually see them is well outside most folks' budget and skill.</p><p></p><p>Also, for anyone who doesn't like my simulations, then you don't like Brian Litz's WEZ either. Also, you clearly shouldn't ever quote your SD numbers again, or explain how they affect long range performance, since you obviously must think they are meaningless too....</p></blockquote><p></p>
[QUOTE="entoptics, post: 1958221, member: 104268"] I've never seen anyone do the same test 5 times and post their results. You know why? Most people find their keys in the last place they look... Please post your targets or chrony results that show 5X reproducibility if you have them. Anyone else who doesn't believe that normally distributed variation is a real thing, please attempt this experiment yourself, and post the results. In fact, I have tried 3 times (e.g. 3 shot per charge, round robbin, ladders at distance, using a LabRadar so recording vertical and velocity), and have never once seen the same "node" 3 times. On two different occasions in the last couple years, I also shot 2 shot per charge ladders at distance, realized I hadn't gotten to maximum pressure, so I then repeated the test a week or so later, overlapping the first test's top "node", and low and behold it was gone, or had moved up a charge weight or two. In other words, it was completely predictable random variation in a small sample set. To be clear, I don't think OCW/Charge/Satterlee nodes exist. There's no credible explanation for the process. That being said, vertical/horizontal stringing nodes (i.e. "Ladders") [I][U]may[/U][/I] exist due to harmonic "whip", but the rifle/shooter/ammunition combo that's necessary to actually see them is well outside most folks' budget and skill. Also, for anyone who doesn't like my simulations, then you don't like Brian Litz's WEZ either. Also, you clearly shouldn't ever quote your SD numbers again, or explain how they affect long range performance, since you obviously must think they are meaningless too.... [/QUOTE]
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Reloading
HELP WITH SATERLEE VELOCITY TEST
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