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Old 05-20-2013, 07:03 PM   #17 (permalink)
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Join Date: Aug 2006
Location: Leeuwarden, The Netherlands

Probably due to a bad seal between the pierce pin and the 12g. It shouldn't pierce when you put it in, it should pierce when you pull the trigger.

EDIT: Might want to check if this o-ring is actually there:

Last edited by P4p3Rc1iP; 05-20-2013 at 07:07 PM.
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