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Well, today the rep from Hornady called me and said it was my gun!!!
With a 1 in 3 failure rate, my first suspicion would have been light primer strikes. That's just too high a rate for primer failure. My first move would have been to try it in another 9mm as a test.

You should try talking to Kahr about evaluating your firing system.
 

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Premium Member
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You should research other forums on this subject....
I have. You should research systems analysis and statistics. The scenario you described argues strongly on first glance the diagnosis is a fire group problem, not an ammo problem. That would be the very first thing to investigate in a differential diagnosis of the problem.

Examination by experts appear to have confirmed that!

The problem is that the HCD ammo appears to have poor tolerance for out-of-spec guns. It is not "bad" ammo, it is simply less tolerant of guns not reliably creating the depth and force of primer penetration the industry standards specify. The problem can be solved by either gun manufacturers paying more attention to primer function, or it can be solved by making primers easier to ignite. But laying the blame on the ammo as "defective" when the gun is not performing to spec. is not a credible analysis.
 
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