Objective Loudness of .22 Rimfire Ammo

Discussion in 'Support' started by linearb, May 27, 2019.

    1. linearb
      Psychedelic

      linearb Member Hall of Fame

      Location:
      1
      Tinnitus Since:
      1999
      Cause of Tinnitus:
      karma
      In a recent thread, @Nonnie and others were talking about the volumes of various rounds. 140 dB is often given as the reference level for .22lr; however, I'm unable to get anywhere near that.

      All measures taken using a BAFX dB meter in "peak" mode, using Federal 40 grain copper-plated ammo, and 3-4 round bursts were used to maximize the chance of getting a peak reading. Distance readings were taken firing directly at the meter (well, as directly as possible without shooting it).

      Ruger MKII pistol, at muzzle: 118 dB
      Ruger MKII pistol, at shooter's ear level: 115 dB
      Ruger MKII pistol, at 10': 110 dB

      Ruger 10/22 rifle, muzzle: 116 dB
      Ruger 10/22 rifle, shooter's ear: 107 dB

      At this point the batteries on my dB meter were getting flaky so I called it a day. Note that because of the greater muzzle length, for the rifle, the volume has already been halved at the shooter's ear level, compared to the muzzle.

      I'll be happy to repeat this with 7.62x54r at some point in the near future, but for me the tl;dr is (as always), .22s are not that loud and with proper hearing protection I think they're fine for most people, including most people with simple tinnitus and no hyperacusis. I'm not encouraging people to take this up as a hobby, but some of us live in situations where varmints are a thing and guns are necessary. (Most recently we had a woodpecker waking us up at 4am every day; I will tolerate that for 2-3 days, then it's time to try to make pecker stew....)

      I am able to get readings in nearly this same general range by clanking dishes together loudly...
       
      • Useful Useful x 1
    2. Stu1983
      Studious

      Stu1983 Member Benefactor

      Tinnitus Since:
      Around 2008/spiked Dec 2018
      Cause of Tinnitus:
      2008 sound?Meds?Not sure/Dec 20 2018 meds doubled the volume
      Thanks @linearb.

      This was very informative. Rugers Mark is a sweet pistol, especially with a suppressor.
       
    3. rdz
      Gloomy

      rdz Member

      Location:
      Chicago
      Tinnitus Since:
      2019
      Cause of Tinnitus:
      Unknown
      I've been wanting to go to a range again. Do you know how loud a 556 or a 9mm could get?
       
    4. Tex

      Tex Member

      Tinnitus Since:
      08/2008
      Cause of Tinnitus:
      Noise Exposure
      22 LR ammo comes in all flavors. The "milk carton" practice ammo is I'm sure the lowest velocity, in the 1,200+ fps range. Then there are some Hyper Velocity varieties that hit over 1,600 fps. https://www.cci-ammunition.com/products/detail.aspx?use=1&loadNo=0050 Any of this is safe with good hearing protection.

      I've probably fired a bazillion rounds of mostly practice round varieties out of both Ruger pistols and rifles. I never wore hearing protection. I know now I was doing permanent damage all that time without even knowing it. It was not loud to me or unpleasant to shoot. The same can be said for about a bazillion rounds of 12 gauge at clay pigeons.

      I always wore hearing protection with larger caliber handguns. That truly hurt the ears to shoot without it.

      Those were the days and we were ignorant. However now I know and do take proper precaution with any of it.

      I have this crap bad, both tinnitus and hyperacusis. But.....I also know I don't have to give up my life and favorite past times for it. The one shooting sport I have cut back on quite a bit is shotgun sports. I'm not positive, but I think the recoil could be doing damage, not the noise.

      My ENT is a shooter. I plan to ask him about that subject at my next visit.
       
    5. AUTHOR
      AUTHOR
      linearb
      Psychedelic

      linearb Member Hall of Fame

      Location:
      1
      Tinnitus Since:
      1999
      Cause of Tinnitus:
      karma
      let me tell you about CCI "22 Quiet" :D

      https://www.cci-ammunition.com/products/detail.aspx?use=3&loadNo=960

      They claim 68 db @ shooter's ear with no earpro. Somewhat louder in my tests, but not by much.

      Downside is that it's not actually powerful enough to cycle most semis, so unless you're shooting a revolver, get used to working that ejector lever.

      I'm done with indoor ranges, and probably done with unsuppressed centerfire rifle ammo in general.

      Getting a suppressor in either .45 or .556 is on my to-do list, but given the expense it's a low priority.

      I wish I had the kind of money required for one of the Navy Seal edition, that has an integral suppressor, they look super sweet

      http://img.photobucket.com/albums/v453/GMCMA/Other stuff/Ruger2Amphibian.jpg

      Oh yea, they shoot underwater, too....
       
    6. Stu1983
      Studious

      Stu1983 Member Benefactor

      Tinnitus Since:
      Around 2008/spiked Dec 2018
      Cause of Tinnitus:
      2008 sound?Meds?Not sure/Dec 20 2018 meds doubled the volume

Share This Page

Loading...