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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Learning to use my chronograph...
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<blockquote data-quote="Gregg C" data-source="post: 1362325" data-attributes="member: 103471"><p>After 40yrs of procrastinating I finally got myself a chronometer. True to my life philosophy, I got one of the least expensive models on the shelf- and now I'm kicking myself for not spending a little bit more! Since my new tool doesn't do anything except measure speed, I'm having to do the calculations myself. When working up the SD, we begin by first getting the average velocity , and then getting the deviation of every shots velocity from the average velocity. Does it matter if the actual shot is slower than the average? </p><p>I think I just answered my own question-it's a deviation, am I right ? It doesn't matter which way it deviates, it is still a deviation. Is that correct ?</p><p>Then, as the formula states, average the deviation. Is this then the Standard Deviation ? Or is it only an average ? Does it matter ?</p></blockquote><p></p>
[QUOTE="Gregg C, post: 1362325, member: 103471"] After 40yrs of procrastinating I finally got myself a chronometer. True to my life philosophy, I got one of the least expensive models on the shelf- and now I'm kicking myself for not spending a little bit more! Since my new tool doesn't do anything except measure speed, I'm having to do the calculations myself. When working up the SD, we begin by first getting the average velocity , and then getting the deviation of every shots velocity from the average velocity. Does it matter if the actual shot is slower than the average? I think I just answered my own question-it's a deviation, am I right ? It doesn't matter which way it deviates, it is still a deviation. Is that correct ? Then, as the formula states, average the deviation. Is this then the Standard Deviation ? Or is it only an average ? Does it matter ? [/QUOTE]
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Learning to use my chronograph...
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