how do you properly measure groups??

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chadflys
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how do you properly measure groups??

Post by chadflys » Sat Aug 15, 2009 10:22 am

from outside edge of hole or outside edge of mark that the lead left on the paper?

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Bullseye
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Post by Bullseye » Sat Aug 15, 2009 11:52 am

You want to use the outside edge of the true bullet diameter. If that means the lead mark then use that. Otherwise use a scoring gauge or overlay to determine the dia of the bullet hole in the target.

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