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CAUTION: The following post includes loading data beyond currently published maximums for this cartridge. USE AT YOUR OWN RISK. Neither the writer, The Firing Line, nor the staff of TFL assume any liability for any damage or injury resulting from use of this information.
When I started reloading ~12 years ago, I blew the extractor, extractor spring, hold open, mag follower, magazine spring, and mag bottom plate out of the 9mm.
The work up got to a guppy belly case bulge and a pierced primer, and I just kept working up higher.
That extractor exits to the right at lethal velocities.
What I had to learn was that when I see a pressure sign on the brass, stop the work up, and only consider loads useful that are a safety margin reduced from the threshold of pressures sign... ala Vernon Speer 1956.
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