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Old August 11, 2012, 10:34 PM   #9
James K
Join Date: March 17, 1999
Posts: 24,135
Soot on the front of the case is normal up to a point. If excessive, it indicates the case neck is not expanding enough to seal off the chamber. That is usually the result of too light a load or a load with the wrong powder. I am surprised that it occured with factory ammo, though.

Jim K
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