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Old June 5, 2019, 07:29 PM   #20
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Join Date: September 2, 2010
Location: Plainview , Long Island NY
Posts: 3,528
I use IMR 4064 for my 308 using a light load of 40.8 with a Sierra 168 MK , the powder is at the base of the case neck and that's with a very light load . My brass is on the thick side which works well with my light loads . I'm sure if I loaded to the high end of the scale it would be compressed . Or I could switch to a thinner brass like Remington or Winchester.
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