Page 2 of 4 FirstFirst 1234 LastLast
Results 11 to 20 of 31

Thread: Torn Case

  1. #11
    Join Date
    Apr 2007
    Location
    FL
    Posts
    9,246
    Feedback Score
    28 (100%)
    Quote Originally Posted by ForTehNguyen View Post
    something to do with the SAW belt links making that part of the case weaker than the rest?
    It has something to do with the cycle of function specific to the weapon. I have heard different theories, but nothing beyond what I consider to be speculation.
    Jack Leuba
    Director, Military and Government Sales
    Knight's Armament Company
    jleuba@knightarmco.com

  2. #12
    Join Date
    Nov 2007
    Posts
    11,063
    Feedback Score
    41 (98%)
    Ive only had that happen once, and it was with Black Hills blue box 69 SMK's. Just brass that has been shot too much, and can happen with reloads.

  3. #13
    Join Date
    Oct 2007
    Location
    Littleton, CO
    Posts
    3,921
    Feedback Score
    1 (100%)
    Need to get one of those broken case extractors.

  4. #14
    Join Date
    Jan 2008
    Location
    AZ-Waging jihad against crappy AR's.
    Posts
    24,902
    Feedback Score
    104 (100%)
    I heard that it had something to do with the weapon firing from the open bolt position (rounds slamming into the breech) and then extracting so fast due to the rate of fire.

    Quote Originally Posted by Failure2Stop View Post
    It has something to do with the cycle of function specific to the weapon. I have heard different theories, but nothing beyond what I consider to be speculation.



    Owner/Instructor at Semper Paratus Arms

    Facebook: https://www.facebook.com/SemperParatusArms/

    Semper Paratus Arms AR15 Armorer Course http://www.semperparatusarms.com/cou...-registration/

    M4C Misc. Training and Course Announcements- http://www.m4carbine.net/forumdisplay.php?f=141

    Master Armorer/R&D at SIONICS Weapon Systems- http://sionicsweaponsystems.com

  5. #15
    Join Date
    Jun 2006
    Posts
    6,028
    Feedback Score
    13 (100%)
    That is pretty interesting, I've never heard it before.

    I had one stuck case down at BW a few weeks back that I was able to clear by mortaring the gun. This was an LE6920, so I assume the overall operation of the gun (compared to an 11.5") was mild enough that it tried and failed to pull out the case, vs. trying and ripping it in half.

  6. #16
    Join Date
    Aug 2007
    Location
    Tennessee
    Posts
    912
    Feedback Score
    0
    Quote Originally Posted by Iraqgunz View Post
    I heard that it had something to do with the weapon firing from the open bolt position (rounds slamming into the breech) and then extracting so fast due to the rate of fire.
    I was told that the cartridge cases that had been fired through a SAW would not be acceptable for reloads due to the fact that headspace specification of that weapon caused excessive stretch in the web of the case as compared to the M16 series.Once resized the brass at times will clearly indicate a ringed web on the exterior.
    It was recommended to inspect all the military spent cases inside and out for a ringed web,particularly after resize.High tech tool indicated to use at the time was a straightened paper clip to check the inside web of the case when going through bulk surplus brass..
    Other warning was to look for deformed cartridge case rims.
    Glock Certified Armorer
    Armed Protective Services II

  7. #17
    Join Date
    Jan 2008
    Location
    AZ-Waging jihad against crappy AR's.
    Posts
    24,902
    Feedback Score
    104 (100%)
    Guess how many buttstocks I replaced in the last week due to personnel incorrectly "mortaring" their weapons.

    Quote Originally Posted by The_Katar View Post
    That is pretty interesting, I've never heard it before.

    I had one stuck case down at BW a few weeks back that I was able to clear by mortaring the gun. This was an LE6920, so I assume the overall operation of the gun (compared to an 11.5") was mild enough that it tried and failed to pull out the case, vs. trying and ripping it in half.



    Owner/Instructor at Semper Paratus Arms

    Facebook: https://www.facebook.com/SemperParatusArms/

    Semper Paratus Arms AR15 Armorer Course http://www.semperparatusarms.com/cou...-registration/

    M4C Misc. Training and Course Announcements- http://www.m4carbine.net/forumdisplay.php?f=141

    Master Armorer/R&D at SIONICS Weapon Systems- http://sionicsweaponsystems.com

  8. #18
    Join Date
    Nov 2009
    Posts
    714
    Feedback Score
    2 (100%)
    ill bite. how many?

  9. #19
    Join Date
    Feb 2010
    Posts
    28
    Feedback Score
    0
    Quote Originally Posted by Failure2Stop View Post
    There is a good probability of this happening if the reloads are made from SAW (M249) brass.
    Most likely...

    http://www.dtic.mil/ndia/2006smallarms/fischer.pdf

    Note longitudinal stretching/head space...worn , out of spec M249s - not uncommon

    There's a little more to it, but here's something for those interested to research.

    Seen this often before...
    Last edited by Q-1; 03-19-10 at 08:05.

  10. #20
    Join Date
    Mar 2009
    Location
    Deep South Texas
    Posts
    2,521
    Feedback Score
    2 (100%)
    Quote Originally Posted by Iraqgunz View Post
    Guess how many buttstocks I replaced in the last week due to personnel incorrectly "mortaring" their weapons.

    never had to do this...can I get an explanation or link to do it correctly sir??
    "You cannot invade the mainland United States. There would be a rifle behind each blade of grass."
    Japanese Admiral Yamamoto, 1941




    "A wise man's heart directs him toward the right, but a foolish man's heart directs him toward the left."
    Ecclesiastes 10:2:

Page 2 of 4 FirstFirst 1234 LastLast

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •