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9 mm Case Head Separation

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  • 417atty
    Member
    • Mar 2012
    • 271

    9 mm Case Head Separation

    I had my first case head separation this morning while shooting 9mm reloads with my standard recipe – Berry’s 124 gr plated RN over 4.1 gr Titegroup @ 1.15 OAL. The report and recoil were lighter than usual and I felt a few tiny particles of powder hit my face and eye protection.

    I was shooting my high-round count Beretta 92FS. The trigger bar on the right side of the gun was pushed out slightly and the empty case stove-piped. I cleared the weapon, checked the barrel for obstructions, and gave the trigger bar a firm push and it went right back into place. As far as I can tell, the gun checked out fine afterward and still functioned.

    I was using Winchester brass that I had previously loaded probably three or four times with the same recipe and shot through a Glock 19.

    The round was loaded on my Dillon SDB so I’m pretty sure the powder charge was accurate because it’s usually dead-on. I also do spot-checks every 30 rounds or so for powder weight and OAL.

    I’m what I consider to be a very careful reloader and didn’t notice any flaws or bulges in the case while processing the brass or loading. However, I understand it’s entirely possible to miss a latent defect where the brass has been stressed just enough from multiple loadings to cause it to rupture. Unsupported chambers in the Glock and Beretta probably contributed, too. I just want to remind everyone to be safe while reloading.

    Last edited by 417atty; 03-13-2018, 5:50 PM.
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    KMA-628 RETIRED
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  • #2
    McGuiver
    Senior Member
    • Feb 2016
    • 1022

    Ouch. Glad you were OK. Guns can be replaced. Fingers, hands, and people can't.

    Is this brass you have fired before or range pickup? If a round looks like it has the slightest bulge or crack...to the brass scrap bucket it goes.


    Sent from my iPad using Tapatalk

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    • #3
      drdarrin@sbcglobal.net
      Senior Member
      • Feb 2011
      • 2219

      You said these have been loaded and fired 3-4 times in your Glock. Ever notice the Glock budge on them?


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      "I am only one; but still I am one. I cannot do everything; but still I can do something; and because I cannot do everything, I will not refuse to do the something that I can do."
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      • #4
        desertjosh
        Calguns Addict
        • May 2011
        • 5749

        Glocks ruin brass?
        Welcome to OT, where hypocrisy is King, outrage is Queen and the Kingdom is on the shores of the Denial River.

        __________________

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        • #5
          417atty
          Member
          • Mar 2012
          • 271

          Originally posted by McGuiver
          Ouch. Glad you were OK. Guns can be replaced. Fingers, hands, and people can't.

          Is this brass you have fired before or range pickup? If a round looks like it has the slightest bulge or crack...to the brass scrap bucket it goes.


          Sent from my iPad using Tapatalk
          This was definitely my brass. I tend to stay away from range pick ups. I know it couldn't have been loaded more than three or four times. All previous firings were in my Glock 19. I didn't notice anything unusual when processing or loading it.
          sigpic

          KMA-628 RETIRED
          U.S. Army Veteran
          Calif. POST-certified Firearms Instructor
          Southwestern Law School Alumni

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          • #6
            417atty
            Member
            • Mar 2012
            • 271

            Originally posted by drdarrin@sbcglobal.net
            You said these have been loaded and fired 3-4 times in your Glock. Ever notice the Glock budge on them?


            Sent from my iPhone using Tapatalk
            It looked fine when I loaded it. I've never seen a bulge on any of my brass from my G19. That's what concerns me.

            Maybe it had just enough stress on the same area to fail when I shot it through my Beretta. I don't think my load is too hot.
            sigpic

            KMA-628 RETIRED
            U.S. Army Veteran
            Calif. POST-certified Firearms Instructor
            Southwestern Law School Alumni

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            • #7
              stilly
              I need a LIFE!!
              • Jul 2009
              • 10685

              Originally posted by desertjosh
              Glocks ruin brass?


              LOL!

              You are funny... I see what you did there!
              7 Billion people on the planet. They aint ALL gonna astronauts. Some will get hit by trains...

              Need GOOD SS pins to clean your brass? Try the new and improved model...



              And remember- 99.9% of the lawyers ruin it for the other .1%...

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              • #8
                ptmn
                Senior Member
                • Aug 2012
                • 789

                We all know Glocks bulge brass, but I've never seen a 9mm Glock cause a bulge.

                I wonder if you just got one of those rare cases of a weak section of brass from the manufacturer.

                There can be plenty of speculation from set back to out of battery fire to double charge to loading Gremlins, but the only important thing is that you weren't injured and your still shooting and reloading.

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