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Rifles, Reloading, Optics, Equipment
Equipment Discussions
Garmin Xero - update
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<blockquote data-quote="gregmark24" data-source="post: 2975389" data-attributes="member: 121785"><p>Ok. Here you go. For a point of reference, look at Load #2. Take the three velocities 2632.1, 2609.9 and 2628.9. Excel STDEV says 12.0, and Excel STDEVP comes up with 9.8. Garmin has 9.3. I'd say that Garmin calculates SD wrong. This is from the session with my buddy, and he got one of the early Garmin units. Perhaps it has been fixed by now. I'd be interested if any of you have three shot strings that give you the correct SD; or not. When I entered in the values from my LabRadar, my Excel SD results were EXACTLY the same results as the LabRadar.</p><p></p><p>[ATTACH=full]521732[/ATTACH]</p></blockquote><p></p>
[QUOTE="gregmark24, post: 2975389, member: 121785"] Ok. Here you go. For a point of reference, look at Load #2. Take the three velocities 2632.1, 2609.9 and 2628.9. Excel STDEV says 12.0, and Excel STDEVP comes up with 9.8. Garmin has 9.3. I'd say that Garmin calculates SD wrong. This is from the session with my buddy, and he got one of the early Garmin units. Perhaps it has been fixed by now. I'd be interested if any of you have three shot strings that give you the correct SD; or not. When I entered in the values from my LabRadar, my Excel SD results were EXACTLY the same results as the LabRadar. [ATTACH type="full"]521732[/ATTACH] [/QUOTE]
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Garmin Xero - update
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