Thread: 5 yards
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Unread 04-19-2023, 10:05 PM   #4
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Mike Poindexter
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Oberfell and thompson's study showed a 10% decrease in pattern density for every 5 yards between 25 and 50. This was so consistent that some gurus recommend patterning at 30 yards and just calculating the pattern at 40. Thus, a 70% pattern at 30 is a 50% pattern at 40, or IC.
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