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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Es/sd
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<blockquote data-quote="Pdvdh" data-source="post: 373299" data-attributes="member: 4191"><p>ES = extreme spread of muzzle velocity. The highest muzzle velocity minus the lowest muzzle velocity.</p><p></p><p>SD = standard deviation of a set of muzzle velocities. This describes the expected spread of muzzle velocity - above or below the true mean of muzzle velocity based on a set of recorded muzzle velocities. You could Google search the term and get the exact definition. It's used to analyze data sets in Statistics.</p><p></p><p>Muzzle velocities are typically obtained with chronographs, which typically cost somewhere between $125 and $400, depending on the Brand and Model.</p></blockquote><p></p>
[QUOTE="Pdvdh, post: 373299, member: 4191"] ES = extreme spread of muzzle velocity. The highest muzzle velocity minus the lowest muzzle velocity. SD = standard deviation of a set of muzzle velocities. This describes the expected spread of muzzle velocity - above or below the true mean of muzzle velocity based on a set of recorded muzzle velocities. You could Google search the term and get the exact definition. It's used to analyze data sets in Statistics. Muzzle velocities are typically obtained with chronographs, which typically cost somewhere between $125 and $400, depending on the Brand and Model. [/QUOTE]
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Es/sd
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