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Old July 5, 2008, 08:41 AM   #20
Senior Member
Join Date: November 2, 2007
Location: Northern Orygun
Posts: 4,923
If you shoot bullets that are over 165gr you need to tweak the gas system. Sadlak offers a grooved piston for this. You need to check headspace to be sure you are safe for both 7.62 and .308.
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