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Old January 31, 2010, 11:31 AM   #14
WIN71
Senior Member
 
Join Date: March 28, 2005
Posts: 729
Quote:
Measure the group from the outside to the outside of all shots.
Then subtract one bullet diameter, (.308 inch in this case ).
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Air goes in and out. Blood goes 'round and 'round.
Any variation on this is a very bad thing.
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