collapse collapse

* Links

* Forum Menu

* User Info

 
 
Welcome, Guest. Please login or register.

* Who's Online

  • Dot Guests: 29
  • Dot Hidden: 0
  • Dot Users: 5
  • Dot Users Online:

* Board Stats

  • stats Total Members: 2008
  • stats Total Posts: 67558
  • stats Total Topics: 11851
  • stats Total Categories: 5
  • stats Total Boards: 61
  • stats Most Online: 691

* Search



Author Topic: .22 comparisons  (Read 4436 times)

0 Members and 1 Guest are viewing this topic.

Offline Kevin Rippman

  • AFTE Member
  • ***
  • Posts: 11
.22 comparisons
« on: October 06, 2017, 02:33:40 PM »
I have a case where some 40 grain Cu JHP .22 bullets were recovered from autopsy. No cartridge cases. The bullets are 6R and can be readily identified together.


A few .22 LR firearms were submitted for comparison. The firearms are also 6R and have the same LIMP/GIMP measurements as my Cu bullets. .22 Magnum cartridges will not fit in any of the firearms.


Would you fire .22 LR cartridges and compare the lead bullets to the Cu bullet? Or would you eliminate outright because of the implied cartridge difference?


We have been having some internal discussion about the possibility of reloading .22 metal jacketed bullets into .22 LR cartridge cases. We would like to know what other labs would do or if anyone has seen anything like that.

Offline Steve Scott

  • AFTE Member
  • ***
  • Posts: 585
  • Gender: Male
Re: .22 comparisons
« Reply #1 on: October 06, 2017, 03:30:32 PM »
IMO, it would be extremely difficult (and somewhat foolish) to attempt reload 22 caliber cartridge cases with a jacketed bullet.  The soft brass of the 22LR cc would bear toolmarks reflective of the reloading.

You could err on the side of caution by stating that the firearms will not chamber 22Magnum ammo, which the bullets are characteristic of, remembering that some 22LR revolvers (if you have any) can be equipped with a 22Mag cylinder (which may not have been submitted).
Steve Scott

 

Countdown Clock

* Recent Posts

Re: Forensic Scientist Firearm Examiner - New Zealand by Julie Knapp
[October 11, 2019, 09:15:00 AM]


Looking for research participants by Greg Allen
[October 11, 2019, 08:11:38 AM]


Re: Forensic Scientist Firearm Examiner - New Zealand by Erica Lawton
[October 10, 2019, 10:13:32 AM]


Re: Forensic Scientist Firearm Examiner - New Zealand by Julie Knapp
[October 10, 2019, 10:00:25 AM]


Forensic Scientist Firearm Examiner - New Zealand by Gerhard Wevers
[October 09, 2019, 08:00:17 PM]


Supervising Criminalist - Alameda County, CA by Jason Otis
[October 09, 2019, 04:54:14 PM]


40-Hour Gunshot Residue and Distance Determination Course by Philip Hess
[October 07, 2019, 05:07:38 PM]


Forensic Lab Latent Print Examiner II by Harry Jeppe
[October 07, 2019, 12:42:15 PM]


3D Technology Demo by edsmith
[October 02, 2019, 04:11:13 PM]


Three Permanent Positions for Firearms Examiners at DFSC by Dorothy Vernoy
[October 02, 2019, 10:36:06 AM]


Now Hiring - St. Louis County Police Firearm & Toolmark Examiner by Tina Wilson
[October 01, 2019, 04:38:11 PM]


Re: AUSTIN TX - TRAINING SEMINAR by Robyn Radosevich
[October 01, 2019, 10:00:10 AM]


Re: AUSTIN TX - TRAINING SEMINAR by Eric Nelson
[October 01, 2019, 09:55:24 AM]


Re: AUSTIN TX - TRAINING SEMINAR by Julie Knapp
[September 30, 2019, 03:51:39 PM]


AUSTIN TX - TRAINING SEMINAR by Patrick Chavez
[September 30, 2019, 03:24:24 PM]

* Headstamp Guide