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Feb 7th, 2025
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 Re: whats louder
[Re: Skitini]
#1943950
12/22/10 02:33 PM
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Joined: Nov 2009
Posts: 2,291
Sirrah243
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Joined: Nov 2009
Posts: 2,291 |
Thanks to sirens mounted on the bumper and cab and shooting without hearing protection I have lost alot of hearing in my left ear. I'm right handed and I can attribute the hearing loss in my left ear to shooting a shotgun and driving with the driverside window open with siren on.
Hearing protection was never given a second thought when I was younger.
I use hearing protection now.
�A hunt based only on the trophies taken falls far short of what the ultimate goal should be.� -Fred Bear
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Re: whats louder
[Re: Central Texas Hog Traps]
#1944023
12/22/10 02:55 PM
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Joined: May 2009
Posts: 4,243
DallasShootingSupplies
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This!! Winner!! My wife can deafen me for days, she actually thinks I'm deaf unless its something I want to hear. LOL
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Re: whats louder
[Re: Skitini]
#1945264
12/22/10 08:31 PM
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Joined: Sep 2004
Posts: 3,544
Old_Town
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I am not really sure what chamber pressure has to do with loudness. A 16 inch Mark 7 gun on an Iowa Class Battleship has a normal service pressure around 49,700 psi. I am pretty sure it is louder than a 5.56 operating at 62,000 psi......
Is blowing through a straw louder than a blower nozzle on an air compressor at 175 psi? Is a .22 LR louder than a .22 short? Is a .22 cal pellet gun quieter than a .22 Hornet? Operating pressure has everything to do with it.
Last edited by Old_Town; 12/22/10 08:32 PM.
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Re: whats louder
[Re: Old_Town]
#1946691
12/23/10 03:22 AM
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Joined: Oct 2010
Posts: 189
Skitini
Woodsman
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Woodsman
Joined: Oct 2010
Posts: 189 |
I appreciate the examples, but guess I just can't follow... Chamber pressure alone does not seem to me to account entirely for loudness. The Mark 7 I referenced operates at a far lower chamber pressure than the 5.56, though it does have far greater surface area and employs more than 4.5 million grains of gunpowder compared to the roughly 26 grains commonly found in a 5.56 round. Despite a 12 gauge operating at a chamber pressure of roughly 11,000 psi it does have far more surface area and does measure slightly louder than the average 223.
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Re: whats louder
[Re: Skitini]
#1946785
12/23/10 03:44 AM
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Joined: Feb 2009
Posts: 23
agriffon
Light Foot
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Light Foot
Joined: Feb 2009
Posts: 23 |
That a 12 measure louder than a 223 proves operating pressure is not important.
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Re: whats louder
[Re: Skitini]
#1946821
12/23/10 03:53 AM
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Joined: Sep 2004
Posts: 3,544
Old_Town
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I appreciate the examples, but guess I just can't follow... Chamber pressure alone does not seem to me to account entirely for loudness. The Mark 7 I referenced operates at a far lower chamber pressure than the 5.56, though it does have far greater surface area and employs more than 4.5 million grains of gunpowder compared to the roughly 26 grains commonly found in a 5.56 round. Despite a 12 gauge operating at a chamber pressure of roughly 11,000 psi it does have far more surface area and does measure slightly louder than the average 223. To me it would be like the difference in "loudness" of the .38 special v. .357 magnum. Same caliber, similar case size and a much higher operating pressure. What else could it be?
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Re: whats louder
[Re: Old_Town]
#1946867
12/23/10 04:05 AM
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Joined: Sep 2004
Posts: 3,544
Old_Town
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http://www.freehearingtest.com/hia_gunfirenoise.shtmlIn the link above it ranks different calibers and shows the decibel rating. It's a bit confusing but interesting nonetheless. My .38 v. .357 argument holds water but the 12ga v. .223 does not in the shorter barreled shotguns.
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