Shotgun noise question

[DustyGmt]

Just curious about something, I've noticed that I can stand relatively close to somebody (25ft or so) who is shooting a #7.5 or #8 - 1 ⅛oz target load, without ear pro and not really be bothered by it, in fact many of us gather about 10ft behind the 27 yard line and carry on conversations and aren't hindered by the noise at all. But if you were shooting a 00bk load of the same 1 ⅛oz payload at the same velocity, it would have your ears ringing.

I understand why slugs would have exponentially higher Db or noise since I imagine it's the powder charge and it throwing a 1oz slug @1500-1600fps vs the 1250-1350 fps of shot/buckshot, but I've just noticed that all things being equal between target loads and buckshot, the buckshot is considerably noisier.

Just curious....

 

[Carl N. Brown]

I am seeing 12ga trap or skeet loads running 1200 fps, buckshot 1325 fps, slugs 1560.
Field or game shot loads for hunting and some sporting clay loads at 1300, 1330 fps.

 

[CapnMac]

Sound is deceptive. 100 dB at a concert of sports event can be "loud" but not necessarily painfully so. Even so, 100 dB is right at the threshold for damage to human hearing. Especially cumulatively.

When the projectile or projectiles exceed 1145 fps at sea level, they become supersonic and will create a sonic boom, which can cause damage. If limited by a cube root function of distance.
The propelling charge will create its own sound at the muzzle as well.

It's good to be cautious, hearing is not replaceable; and I know any number of "haf deef" skeet shooters who did not notice the loss until it was gone.

 

[Riomouse911]

Sound is deceptive. 100 dB at a concert of sports event can be "loud" but not necessarily painfully so. Even so, 100 dB is right at the threshold for damage to human hearing. Especially cumulatively.

When the projectile or projectiles exceed 1145 fps at sea level, they become supersonic and will create a sonic boom, which can cause damage. If limited by a cube root function of distance.
The propelling charge will create its own sound at the muzzle as well.

It's good to be cautious, hearing is not replaceable; and I know any number of "haf deef" skeet shooters who did not notice the loss until it was gone.

My tinnitus is growing louder as I age. In a crowd, or even a restaurant, hearing a person talking to me is becoming harder and harder every year.

OP; Do what you can to save your hearing, even to the point of having plugs in behind the trap-skeet line waiting to shoot.

Stay safe.

 

[AK Hunter]

I attend spot shoots that's a competition of target shooting shotguns. A few shots doesn't bother me but hearing it all day long will give me a bad headache so I always wear ear protection & many other do too.

 

[entropy]

Wear your ear protection if you are near the line! You can ask me why, but you'll have to shout. I didn't wear it when I was shooting in my teens, and am paying for it now. The amp turned up to 11 and the 155mm cannons didn't help a lot, either.

 

[tmd16556]

Birdshot starts barely supersonic and goes subsonic in the first few yards. Bigger pellets stay supersonic longer and make longer shockwaves. It’s similar with handgun loads between 9mm loadings.

Plus target loads use faster burning powders and lighter charges so there’s just less energy involved in the first place.

 

[kje54]

I'm sorry, can all of you speak up some. I can barely hear what you're saying.