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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Hit percentage analysis
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<blockquote data-quote="bruce_ventura" data-source="post: 1077235" data-attributes="member: 34084"><p>I just noticed this detail. I think that dividing ES by 4 to get SD is only valid for groups of >20 shots. However, most shooters base their ES off of 3-5 shot groups. On average they end up with an ES value that's smaller than what they would have gotten with a larger number of shots in the group. For example, the ES value for a 4-shot group should be divided by about 2 to get the SD. </p><p></p><p>That means that most shooters should multiply their ES values by 2 before entering that data into the WEZ software. In the graphs in the PRB article, the MOA values shown along the X-axis should be divided by 2 to get ES values that correspond to a 4-shot group. That change makes the graphs appear a bit more reasonable.</p></blockquote><p></p>
[QUOTE="bruce_ventura, post: 1077235, member: 34084"] I just noticed this detail. I think that dividing ES by 4 to get SD is only valid for groups of >20 shots. However, most shooters base their ES off of 3-5 shot groups. On average they end up with an ES value that's smaller than what they would have gotten with a larger number of shots in the group. For example, the ES value for a 4-shot group should be divided by about 2 to get the SD. That means that most shooters should multiply their ES values by 2 before entering that data into the WEZ software. In the graphs in the PRB article, the MOA values shown along the X-axis should be divided by 2 to get ES values that correspond to a 4-shot group. That change makes the graphs appear a bit more reasonable. [/QUOTE]
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Hit percentage analysis
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