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PPK ballistics

Posted: Fri May 29, 2020 7:52 pm
by LDB415
Is there anything distinctive about the PPK that allows identifying a recovered bullet as coming from it and no other pistol?

Re: PPK ballistics

Posted: Fri May 29, 2020 8:37 pm
by bobby
barrel length 83mm, rifling 6 grooves, right-hand twist, one turn in 250mm. Depth of grooves 0.1mm, width of groove 2.55mm

so yes

Re: PPK ballistics

Posted: Fri May 29, 2020 11:49 pm
by LDB415
Ok so when they look at the bullet they'd know it was a PPK and couldn't possibly be any other firearm. I've never studied any of this and thought it might be from gun A, B, C or D. Have they advanced so much they can tell every firearm just from a recovered slug or do they still need to match some of them?

Re: PPK ballistics

Posted: Sat May 30, 2020 12:52 am
by bobby
In theory any model with that barrel stats would be listed I dont have the ref to know if any other handguns have that length and all... so maybe maybe not

Re: PPK ballistics

Posted: Sat May 30, 2020 8:17 am
by WildBill
LDB415 wrote: Fri May 29, 2020 7:52 pm Is there anything distinctive about the PPK that allows identifying a recovered bullet as coming from it and no other pistol?
Maybe Quincy, M.E. could do it, but in real life, I don't think so.
These articles have some good info on forensic analysis of bullets - based on what I read, the answer to your question is "no".

https://lib.dr.iastate.edu/cgi/viewcont ... ontext=etd

https://www.nist.gov/news-events/news/2 ... tification

https://www.sciencedirect.com/science/a ... via%3Dihub

Re: PPK ballistics

Posted: Sat May 30, 2020 8:38 am
by threoh8
I suspect that a bullet from a PPK would look a lot like bullets from a PP or PPK/S in the same caliber. Or from any other pistol with a similar rifling form.

Re: PPK ballistics

Posted: Sat May 30, 2020 9:34 am
by C-dub
WildBill wrote: Sat May 30, 2020 8:17 am
LDB415 wrote: Fri May 29, 2020 7:52 pm Is there anything distinctive about the PPK that allows identifying a recovered bullet as coming from it and no other pistol?
Maybe Quincy, M.E. could do it, but in real life, I don't think so.
These articles have some good info on forensic analysis of bullets - based on what I read, the answer to your question is "no".

https://lib.dr.iastate.edu/cgi/viewcont ... ontext=etd

https://www.nist.gov/news-events/news/2 ... tification

https://www.sciencedirect.com/science/a ... via%3Dihub
Abby Sciuto could probably also tell us if the shooter was right or left handed. :biggrinjester:

Re: PPK ballistics

Posted: Sat May 30, 2020 10:18 am
by WildBill
C-dub wrote: Sat May 30, 2020 9:34 am Abby Sciuto could probably also tell us if the shooter was right or left handed. :biggrinjester:
:mrgreen:

Re: PPK ballistics

Posted: Sat May 30, 2020 2:23 pm
by LDB415
We were watching a movie and when they analyzed the bullet from the corpse they claimed it came from a PPK and one suspect had a PPK. I've heard of Glocks being identified by the striations etc. but wasn't sure if there was something like that to absolutely identify a PPK or not. In the same movie the detective is clearing a house with a pistol that is a good 1/2 inch out of battery, clearly visible with the slide back that far exposing that much barrel in the front and overhanging the beavertail by that much at the rear.