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Thread: 9mm PCC Noise Level

  1. #1
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    9mm PCC Noise Level

    I have an 11" 9mm AR which is in "mid-build". I took it to the range mounted to my pistol lower and fired a few rounds single shot to get a feel for it. My 11.3" 5.56 is louder, but I have pretty significant hearing loss so I cannot really tell how much louder.

    Is a 11" 9mm ear safe? I assume no, so will foam earplugs or muffs be enough protection? I am doubling up (plugs, muffs) when I shoot my 5.56 pistol. I use either one or the other shooting handguns or 16"+ carbines/rifles.

    These may seem like dumb questions, but I have searched and cannot find a dB level for longer barreled 9mm guns. I am trying to keep the hearing I have left.

    Thank you
    Andy
    Last edited by AndyLate; 09-16-19 at 11:33.

  2. #2
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    Longer 9mm barrels are quieter at the range. I wouldn't say earmuff free but they do sound less obnoxous.

  3. #3
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    Wear proper ear protection even when firing .22LR rifles.

  4. #4
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    Quote Originally Posted by AndyLate View Post
    Is a 11" 9mm ear safe?
    Not at all. Certainly not as loud as 5.56, but still not hearing safe.
    "You people have too much time on your hands." - scottryan

  5. #5
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    Through my experience using suppressors, longer barrels gives higher velocities. There is a louder sound.


    Sent from my iPad using Tapatalk Pro

  6. #6
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    Thank you for answering my poorly worded question.

    Andy

  7. #7
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    Rifle>pistol>pcc

    Ppc is like a pistol but quieter and further from your ear. Muzzle device will influence it as well.

  8. #8
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    Quote Originally Posted by MegademiC View Post
    Rifle>pistol>pcc

    Ppc is like a pistol but quieter and further from your ear. Muzzle device will influence it as well.
    Mine has a flash can. I was planning on a thread protector only, but to me the barrel was a bit too short for a 10" rail.

  9. #9
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    FWIW Andy; our PCC's (10.5" barrels) with Flash cans are quit enough it's difficult for shot timers to record shots.
    Not saying I'd use zero ear pro, but they are substantially quieter than a handgun- per MegademiC.

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