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Old November 27, 2012, 07:01 AM   #3
Bart B.
Senior Member
Join Date: February 15, 2009
Posts: 6,318
Djmudge, rarely, if at all, does everyone use the same lot of powder, primer, case and barrel with the same pressure and velocity measuring stuff to test a given load. Until that happens, there'll be at least a 5% spread in load data; sometimes a 10% spread.
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