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Author Topic: help identify this 9mm firing pin mark  (Read 38458 times)

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Offline Jamie Green

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Re: help identify this 9mm firing pin mark
« Reply #15 on: June 02, 2010, 11:25:00 AM »
I've seen that happen on both some Sigmas and Kel-Tecs that have come through our office.  One Kel-Tec comes to mind where the firing pin impression was totally covered by the shear.
"No arsenal, or no weapon in the arsenals of the world, is as formidable as the will and moral courage of free men and women." - Ronald Reagan

Offline Steve Scott

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Re: help identify this 9mm firing pin mark
« Reply #16 on: June 02, 2010, 01:20:41 PM »
I agree with Jamie...very KelTec-ish
Steve Scott

Offline Zak Carr

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Re: help identify this 9mm firing pin mark
« Reply #17 on: June 02, 2010, 01:30:26 PM »
Last month I had a Smith & Wesson SW9VE (newer style Sigma) that exhibited this type of FP aperture shear all around with only a very small bit of the FP impression still visible.  This type of shearing was only displayed on my two Remington TF's... my Winchester TF's looked normal with only minimal shear right at the tip of the FP drag. 
Not saying that another make/model firearm couldn't leave a similar mark though...
Zak Carr
Cadre Forensics

Offline Aaron Brudenell

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Re: help identify this 9mm firing pin mark
« Reply #18 on: August 19, 2010, 06:34:58 PM »
Here are two examples of the same kind of thing:

The first is a pair of different .357 magnum ammunition fired in the same gun (Remington on the left) and the second is a pair of 10mm reloads also fired in the same pistol (primer type not known).

I've seen this "full aperture sheer" a number of times and while it's not always consistently reproducible, I have noticed it to be a lot more common with Remington ammunition and higher pressure ammunition. 
Aaron Brudenell
Firearm Examiner
Arizona Dept. of Public Safety


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