Thread: Is this 9mm
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Old December 29, 2012, 06:17 PM   #12
Senior Member
Join Date: February 23, 2005
Posts: 11,879
I believe there is something in the brass alloy in the AMERC head stamped brass that just makes it harder ...almost like steel ....and it just won't resize properly.

I also toss out all the S&B brass and anything that is marked with that nato marking ...the primer cups are tapered a little....and seating new primers is aggravating...
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