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Discussion Starter · #1 ·
Dented Hornady Critical Defense Primer-

I shot 50 rounds of Winchester FMJ without a problem and wanted to shoot two full magazines of JHP's. Of the twelve I shot, I had two that did not fire, but there primers were clearly imprinted with the firing pin.

Any thoughts?
 

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Did they come out of the box, or were they in one of your guns for awhile? I have had primers that got wet with too much breakfree that soaked into the primer by capilary (sp?) action and they would not go off with three strikes.

If they are straight out of the box and have insufficient dents then:

The primer did not get fully seated at the factory

The primer is harder than Winchester

Your striker spring is not strong enough

The case is slightly shorter than the Winchesters and the protrusion of the firing pin is not sufficient to reach it.

Rare, but I have seen primers with no anvil & or no compound in them.
 

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Discussion Starter · #3 ·
They were in the two magazines that I had loaded for around a month. The range officer threw the first one out, but after the second one failed to fire we started trouble shooting (normally not a good idea) and it did in fact go off.

I have not yet put 200 rounds through the pistol and have no idea if that has any bearing on the misfires.
 

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spray clean that striker channel, and DO NOT OIL THAT AREA. It should ignite all primers. I normally never fault the ammo but it can happen, it shouldn't but it can. At best you coldhave a weak (and I doubt it) striker spring.

Give it some ore rounds down range and then restest with the Hornady ammo.

That is good ammo and it should go "boom" every time to.
 
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