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Rifles, Reloading, Optics, Equipment
Reloading
Electric Powder Measure - thoughs
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<blockquote data-quote="nheninge" data-source="post: 488890" data-attributes="member: 13085"><p>Beam scales are <strong>NOT</strong> more <strong>ACCURATE</strong> than a research grade electric scale, cheap or not. This is a basic scientific definition. Argue over precision and reliability all you want . I have never seen a beam scale claiming to have accuracy of i.e. 66.4201 grains. Electronic scales, for a price, have this type of accuracy... if you desire. It is a basic scientific definition . Look up the definitions of accuracy, precision, and error. RCBS and beam scale have EQUAL ERROR. As for reliability, it is like trying to compare a hammer and an air nailer. Sure an air nailer will break down, but millions of houses are now built with them EXCLUSIVELY. But... you can still build a quality house with a hammer.</p><p></p><p>For those that believe a beam scale is more "accurate":</p><p> I want to see...</p><p></p><p>A statistical comparison of actual (known exact gold standard) vs predicted weights (blinded please) between a beam and electronic research grade scale. Please include p-values and sufficient statistical power.</p><p></p><p> A linear logarithmic regression analysis predicting velocity from powder weight between a beam and a research grade scale. </p><p></p><p>Put up or shut up.</p></blockquote><p></p>
[QUOTE="nheninge, post: 488890, member: 13085"] Beam scales are [B]NOT[/B] more [B]ACCURATE[/B] than a research grade electric scale, cheap or not. This is a basic scientific definition. Argue over precision and reliability all you want . I have never seen a beam scale claiming to have accuracy of i.e. 66.4201 grains. Electronic scales, for a price, have this type of accuracy... if you desire. It is a basic scientific definition . Look up the definitions of accuracy, precision, and error. RCBS and beam scale have EQUAL ERROR. As for reliability, it is like trying to compare a hammer and an air nailer. Sure an air nailer will break down, but millions of houses are now built with them EXCLUSIVELY. But... you can still build a quality house with a hammer. For those that believe a beam scale is more "accurate": I want to see... A statistical comparison of actual (known exact gold standard) vs predicted weights (blinded please) between a beam and electronic research grade scale. Please include p-values and sufficient statistical power. A linear logarithmic regression analysis predicting velocity from powder weight between a beam and a research grade scale. Put up or shut up. [/QUOTE]
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Electric Powder Measure - thoughs
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