The image is of a centerfire firing pin impression with concentric toolmarks on the firing pin, and an individual characteristic shaped like a “U” at 10:00.
These features can be used in comparison analysis to determine if a particular fired cartridge casing was fired in a specific firearm.
Erik. Once again you are right. Sadly once again, you are a couple of hours behind this week’s winner-Stephen Daniels. I am sure you will get next week’s as it is right up your alley. Please everyone visit Erik’s site. His blog is very very good.
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Pennsylvania DUI Blog
Erik Brown says:
The image is of a centerfire firing pin impression with concentric toolmarks on the firing pin, and an individual characteristic shaped like a “U” at 10:00.
These features can be used in comparison analysis to determine if a particular fired cartridge casing was fired in a specific firearm.
Justin J. McShane says:
Erik. Once again you are right. Sadly once again, you are a couple of hours behind this week’s winner-Stephen Daniels. I am sure you will get next week’s as it is right up your alley. Please everyone visit Erik’s site. His blog is very very good.