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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Chronographs: What to do?
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<blockquote data-quote="nvschütze" data-source="post: 1798726" data-attributes="member: 110896"><p>What I do is to shoot five and take the <u>median</u> value as the muzzle velocity for that load. The median and the mean can be two different values. I prefer the median because I believe it represents a more accurate description of the population. A mean is too easily distorted by one or two high velocities; the median attenuates oddball velocities.</p><p></p><p>The link below is how I calculate the statistics for my loads. You just input the number for how many samples & click Submit, enter the velocities & click Calculate to see the stats in scientific notation. So easy, even a rural Nevadan can do it...</p><p></p><p><a href="http://www.physics.csbsju.edu/stats/cstats_NROW_form.html" target="_blank">http://www.physics.csbsju.edu/stats/cstats_NROW_form.html</a></p></blockquote><p></p>
[QUOTE="nvschütze, post: 1798726, member: 110896"] What I do is to shoot five and take the [U]median[/U] value as the muzzle velocity for that load. The median and the mean can be two different values. I prefer the median because I believe it represents a more accurate description of the population. A mean is too easily distorted by one or two high velocities; the median attenuates oddball velocities. The link below is how I calculate the statistics for my loads. You just input the number for how many samples & click Submit, enter the velocities & click Calculate to see the stats in scientific notation. So easy, even a rural Nevadan can do it... [URL]http://www.physics.csbsju.edu/stats/cstats_NROW_form.html[/URL] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Chronographs: What to do?
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