Odd rechambering issue article

rbsivleyrbsivley Senior MemberPosts: 1,055 Senior Member
A buddy sent me this article today. I haven't researched to verify the story.

In September of this year a GCPD officer was involved in a situation which quickly became a use of deadly force incident. When the officer made the decision to use deadly force, the chambered round in his duty pistol did not fire. Fortunately, the officer used good tactics, remembered his training and cleared the malfunction, successfully ending the encounter. The misfired round, which had a full firing pin strike, was collected and was later sent to the manufacturer for analysis. Their analysis
showed the following: ".the cause of the misfire was determined to be from the primer mix being knocked out of the primer when the round was cycled through the firearm multiple times". We also sent an additional 2,000 rounds of the Winchester 9mm duty ammunition to the manufacturer. All 2,000 rounds were successfully fired.
In discussions with the officer, we discovered that since he has small children at home, he unloads his duty weapon daily. His routine is to eject the chambered round to store the weapon. Prior to returning to duty he chambers the top round in his primary magazine, then takes the previously ejected round and puts in back in the magazine. Those two rounds were repeatedly cycled and had been since duty ammunition was issued in February or March of 2011, resulting in as many as 100
> chambering and extracting cycles. This caused an internal failure of the primer, not discernable by external inspection.
This advisory is to inform all sworn personnel that repeated cycling of duty rounds is to be avoided. As a reminder, when loading the weapon, load from the magazine and do not drop the round directly into the chamber. If an officer's only method of safe home storage is to unload the weapon, the Firearms Training Unit suggests that you unload an entire magazine and rotate those rounds. In addition, you should also rotate through all 3 duty magazines, so that all 52 duty rounds are cycled, not just a few rounds. A more practical method of home storage is probably to use a trigger lock or a locked storage box.
> Please feel free to contact any member of the Firearms Training Unit for further advice on this matter.

Rank does not concur privileges. It imposes responsibility. Author unknown


  • knitepoetknitepoet Senior Member Posts: 18,869 Senior Member
    Sounds suspicious to me as well.
    Seven Habits of Highly Effective Pirates, Rule #37: There is no “overkill”. There is only “open fire” and “I need to reload”.

  • WheelWheel Member Posts: 102 Member
    If a way could be found to crush the primer pellet inside a loaded cartridge, it might be by continued slamming of the cartridge into a chamber.

    Even if you could manage to damage the pellet, wouldn't it be likely the cartridge would hangfire?

    I would be interested in knowing whether the primer had been sealed in the cartridge at the factory.

    Oils and solvents can kill primers.

    A little penetrating WD-40 might have killed the primer.

    Winchester factory ammo is fairly consistent.

    I hope there will be a follow through on this anomaly.
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