Featured content by remaction

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    Accuracy of Chronographs and reliance on SD's

    SD is a statistical function and the more shots over it result in better SD numbers due to a larger sample size. The chronographs I have used have a .5% - 1% accuracy range. At 3,000 fps this is a range of 15 fps at .5% or 30 fps at 1% error. At 1%, a...