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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Hammer ballistic coefficient tests...
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<blockquote data-quote="Pdvdh" data-source="post: 2615329" data-attributes="member: 4191"><p>Not my job to teach mathematics. Lesson concludes with this post.</p><p></p><p>scdogman has calculated the percent difference of the Litz value from the Hammer BC value. Cody finds that method correct. Fair enough...</p><p>If the .313 Hammer BC is the correct BC, you can divide .237 by .313, and then argue the Litz BC is 75.7% the value of the .313 Hammer value. The Litz value is indeed 24.3% different, less than, .313. <strong><em>IF</em></strong> the Hammer BC is correct, the concludion is the Litz value is a 24.3% error from the correct value. All appropriate <strong><em>IF</em></strong> the Hammer value is correct.</p><p></p><p>But scdogman's post relied on the Litz BC values as the "standard" for comparison, when stating "<em>I don't understand the doubting of the numbers. The numbers are on par with Brian Lutz's calculated g7 results with all his fancy high tech equipment."</em> And... "<em>Brian gets .237 and my 700 to 800 yards drops gives me a 0.241 g7."</em></p><p></p><p>If the presumption is the .237 Litz value is the correct value, or the most correct value, the .313 value constitutes a 32% error from the most correct value. And I've presented the correct calculation of that percent difference, albeit the percent error, of the Hammer value from Litz's .237 G7.</p><p></p><p>IF the .237 Litz value is correct, Cody and scfogman have calculated a 24.3% difference from something. A 24.3% difference from an errant value? A 24.3% difference from a wrong value? That means something to someone?</p><p></p><p>On the other hand, if the standard for performance is "<strong>The numbers are on par</strong>", does any percent difference or percent error, calculated correctly or incorrectly, really matter?</p><p></p><p>Begs the comment "<strong><em>Whatever</em></strong>"...</p><p>Whatever your pleasure...</p></blockquote><p></p>
[QUOTE="Pdvdh, post: 2615329, member: 4191"] Not my job to teach mathematics. Lesson concludes with this post. scdogman has calculated the percent difference of the Litz value from the Hammer BC value. Cody finds that method correct. Fair enough... If the .313 Hammer BC is the correct BC, you can divide .237 by .313, and then argue the Litz BC is 75.7% the value of the .313 Hammer value. The Litz value is indeed 24.3% different, less than, .313. [B][I]IF[/I][/B] the Hammer BC is correct, the concludion is the Litz value is a 24.3% error from the correct value. All appropriate [B][I]IF[/I][/B] the Hammer value is correct. But scdogman's post relied on the Litz BC values as the "standard" for comparison, when stating "[I]I don't understand the doubting of the numbers. The numbers are on par with Brian Lutz's calculated g7 results with all his fancy high tech equipment."[/I] And... "[I]Brian gets .237 and my 700 to 800 yards drops gives me a 0.241 g7."[/I] If the presumption is the .237 Litz value is the correct value, or the most correct value, the .313 value constitutes a 32% error from the most correct value. And I've presented the correct calculation of that percent difference, albeit the percent error, of the Hammer value from Litz's .237 G7. IF the .237 Litz value is correct, Cody and scfogman have calculated a 24.3% difference from something. A 24.3% difference from an errant value? A 24.3% difference from a wrong value? That means something to someone? On the other hand, if the standard for performance is "[B]The numbers are on par[/B]", does any percent difference or percent error, calculated correctly or incorrectly, really matter? Begs the comment "[B][I]Whatever[/I][/B]"... Whatever your pleasure... [/QUOTE]
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Hammer ballistic coefficient tests...
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