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My primers have a slight drag mark after firing, it extends down from the firing pin indentation, the drag mark is about half the size of the firing pin indentation. Still fires, but does my XD need something replaced?
 

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My XD does this too on certain ammo. On WWB, just a nice clean primer dent. With Hydrashoks though, it drags. I don't think this is a problem really. I've seen other guns that do it too...if someone else here knows better, they'll inform you.
 

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have you noticed a difference in the seat depth of the primers between the ones w/ and w/o the drag imprint? Could be the striker being smaller than the hole just hitting in a different point initially and as it moves all the way forward to it's stop, it recenters. Therefore if a primer isn't seated as deep, it may show this little drag mark from the striker coming "home".
 

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SIG's do that, and it's a manufacturing "feature". Which mfg does it fo it with? Might be the hardness or softness of the primers.
 

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mine only did that after i installed Dons guide rod, i do believe it to be due to the slide speed being changed due to the increased spring pressure. went from 18 to 20 pounds.
 

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My Xd does this too, did it on reloads, and federal, wwb. Happens with the 18# stock spring, and with the 22, 24# with Don's too. Someone told me it was the due to the firing pin/spring/mechanism not retracting fast enough. Others told me it was ammo.
hopefully someone will give us more definitive answers.
 

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rebbryan said:
My primers have a slight drag mark after firing, it extends down from the firing pin indentation, the drag mark is about half the size of the firing pin indentation. Still fires, but does my XD need something replaced?
If ejection is still positive and brisk, I would just keep an eye on it. If it gets worse, or you get failures, consider replacing the striker return spring and giving your firing pin tube a good cleaning.

-Zett
 
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It's called "primer wipe". It's caused by the firing pin staying forward for milliseconds after firing, due to the slide moving backwards. The slide starts to move, but like ol' Ike Newton used to say, "objects at rest tend to stay at rest", so the firing pin has to play catch up with the slide. As the cartridge ejects, it "smears" across the primer a bit. Don't worry about it. I've never heard of it not happening in XD's till now....
 

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Well, hell...I'll throw my hat in the ring on this too and agree. My XD did this every since I bought it last November. It did this both with my Don's guide rod setup and the factory guide rod. I should just know better anymore to just ask you guys first. I contacted Springfield about this as well as sent them pictures from spent casings from three (3) different brands of ammo showing this phenomenon. I was quite worried that something might be at risk for getting damaged. As an engineer myself, I wanted a technical explanation for what was happening. Unfortunately, I just got a generic response. I was told that their technical folks had looked at the photos and they told me not to worry...nothing was wrong. Well, that was far from the answer I hoped for...an explanation. At any rate, I had thought about it and made some guesses of my own...which seem to match what you all have described as primer drag (so maybe there's hope for me yet! :p ). Anyhow, thanks to all you guys who are far more experienced than I am for figuring this out!
 

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its normal. I have had 2K rounds through mine, and no problems
 
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