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Discussion Starter · #1 ·
As I was looking at brass bulging just now I noticed that the striker impact is not a smooth dimple. It's almost like it hit and was then pulled away sideways. Has anyone else noticed this?
 

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Seems to me that this could be caused by a worn firing pin return spring. Looks as if the casing is being ejected before the pin is retracted.

Just a thought...
 

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I have a AE (2004) QA chambered in .40 cal. and it does the very same thing. The primers have a secondary impact mark like the one above and the brass seems to bulge quite a bit, is this normal? I don't recall seeing this bulging or extra mark on the primer on the M9s, is it a walther thing?
 

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Discussion Starter · #5 ·
[b said:
Quote[/b] (MLB @ Jan. 31 2005,2:47)]Seems to me that this could be caused by a worn firing pin return spring. Looks as if the casing is being ejected before the pin is retracted.

Just a thought...
Bhegh, that sounds scary. Less than 1000 rounds. Better call S&W and see if they know anything.


2nd: I posted a few days ago that my .40 brass bulges as well (Wolf thread). I don't like it much but havent' heard of any issues because of it.
 

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Load is too hot (if reloads) or firing pin is not retracting fast enough. Take it apart, clean and lube, try it again. If reloading, back off .1-.2 grains.
 

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Discussion Starter · #7 ·
No reloads. Just plain 180 Grain S&W plinking ammo. Getting close to 1000 rounds. Never removed/cleaned the striker unit as the manual says it's not needed.

Boy oh boy another problem. Great.
 

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Mine do the same thing. Have been doing so since 1998. No problems at all. Same thing with the brass buldging. Its a thing with the .40 caliber. Take a look at a case after a Glock has fired a .40. Thats a buldge! I haven't looked at a case fired from an M9. Was the M9 a .40 or 9mm?
 

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Nocturnal, yes my issue M9 like all others is chambered in 9 mm. I hadn't considered there being a huge difference between .40 and a 9 mm case.
So what I have put together from the board members is that .40 cal cases bulge, and the secondary striker mark is normal?

Should I call S&W anyway?
 

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Discussion Starter · #11 ·
Just talked to Walther. The gentleman said that indeed the striker is not retracting as quickly as they like but that it's normal and should not cause any extra wear.
 
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