True or False: .45acp or 10mm For HD

10mm Blast No Worse Than .45acp

  • True

    Votes: 6 7.9%

  • False

    Votes: 70 92.1%
  • Total voters
    76
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CaptHank said:
Serious Injury Range (115 dB to 140 dB)
dB Rating Sound Exposure (hours per day)
120 Rock concert (front row)
125 Cymbal crash; loudest human scream
130 Jet engine taking off; air raid siren
135 Firecracker
140 Shotgun blast directly beside ear
Deadly Range (140 dB to 200 dB)

Forget hearing damage — these sounds will give you permanent everything damage. Below about 170 dB, ear protection can still save you, but store-bought earplugs and earmuffs won’t be enough. You’re also likely to start having other problems with whatever is creating the noise (here’s a hint: don’t stand next to a pound of TNT).

Deadly Range (140 dB to 200 dB)
dB Rating Sound Exposure (hours per day)
150 Formula One car at full throttle Ø
160 Inside jet engine Ø
170 7,000-HP engine Ø
180 1 pound of TNT detonating 15 feet away Ø
190 Grenade blast epicenter Ø
200 Causes immediate death Ø
Click to expand...

Had the “opportunity” to be near a runway (well, hiding behind our vehicle on the tarmac) when passenger jets took off without ear pro. Fun stuff when the jet wash (or whatever) rocked our vehicle rather alarmingly.

Don’t recommend that much.
 
Will Munny said:
In an actual HD situation I doubt blast is going to be worth worrying about.
Click to expand...
I think you have it backwards.

The seriousness of permanent noise-induced hearing loss would likely not vary with the kind of shooting.

But the impairment of one's ability to communicate immediately afterward could become extremely serious in a defensive shooting, indoors or out.
 
Kleanbore said:
I think you have it backwards.

The seriousness of permanent noise-induced hearing loss would likely not vary with the kind of shooting.

But the impairment of one's ability to communicate immediately afterward could become extremely serious in a defensive shooting, indoors or out.
Click to expand...

Can anyone produce an example of a legitimate HD scenario where anyone in the aftermath said that they were so badly impaired from communicating that it proved to be a problem? I've never heard of one.
 
Will Munny said:
Can anyone produce an example of a legitimate HD scenario where anyone in the aftermath said that they were so badly impaired from communicating that it proved to be a problem? I've never heard of one.
Click to expand...

I know of a case in which the sound from the unintentional discharge of a .44 Magnum made it impossible for the shooter to explain to arriving officers what had happened.
 
Kleanbore said:
I know of a case in which the sound from the unintentional discharge of a .44 Magnum made it impossible for the shooter to explain to arriving officers what had happened.
Click to expand...
Since the best possible thing that can happen to someone in that position is they shut their mouth and keep it shut - until their lawyer comes - I don't see that as a detriment. ;)

PS I'm still waiting on the actual numbers.
 
Hal said:
Since the best possible thing that can happen to someone in that position is they shut their mouth and keep it shut - until their lawyer comes - I don't see that as a detriment. ;)

PS I'm still waiting on the actual numbers.
Click to expand...

Agreed. They should not be talking anyway.
 
Will Munny said:
Agreed. They should not be talking anyway.
Click to expand...
That is a grossly erroneous misinterpretation of the sound legal advice to not give a statement without the presence of counsel.

This has been discussed here before. There are a number of things that can properly be, and should be, made known to the police immediately. These include, but are not limited to, the following:
  • Are there any accomplices still at large in the vicinity
  • Does anyone need an ambulance
  • Can you describe the getaway car
  • Did they take a hostage
  • In which direction were shots fired
  • Can you point out any witnesses
  • Did you act in self defense
Failure to point out such things timely can result in injury or death to officers or innocent civilians.

On the last one, a failure to assert self defense at the scene has prevented the use of the legal defense of self defense.
 
I guess if you tried to pin me down I would say true.

I can load either to have more or less muzzle blast than the other.

The way I load 10mm is different that what I am looking to get out of my 45’s though. So if you tested with the stuff I have loaded you would be correct with “false” but that’s one example.
 
Last edited:
I reckon that it depends upon the powder used, in the specific load, but having owned .40 S&W, 10mm, and .45 ACP pistols, I find standard-pressure .45 ACP to be less-obnoxious to shoot, indoors, than .40 S&W and 10mm. It has been so long since I fired .45 ACP +P, that I cannot remember how it would rank, except that it was rather obnoxious to shoot.
 
jmorris said:
I can load either to have more or less muzzle blast than the other
Click to expand...
And I could, if I could legally get away with it, do barrel rolls in a Boeing 737 jet.

But that would doing something for which it was not designed.

If I ever do another poll, I'll get far more specific.
 
I've never seen a .45 do this...


20210704_204437_1_exported_4800.jpg
 
Will Munny said:
Can anyone produce an example of a legitimate HD scenario where anyone in the aftermath said that they were so badly impaired from communicating that it proved to be a problem? I've never heard of one.
Click to expand...

I don't need an example to know that being robbed of one of your 5 senses when people are trying to kill you is a pretty big negative.
Particularly when you have other family members in the house that you'd hope to hear / be heard by.
All this to say, I'd think in this example either caliber would cause similar levels of immediate disability (though in the long term the 10mm might be worse).
But to say 'comms dont matter'... couldn't disagree more strongly.
 
I grew up with .45ACP ( it was actually the first centerfire cartridge I ever shot, at 7yoa). I was an early adopter of 10mm back in the '80s.

I switched back to .45 because, among other reasons, I found the recoil and blast led to shorter range sessions and less practice. Based on some recent encounters with the 10mm, I believe that most common commercial loads are a bit lighter than the early standard, but the notion that the 2 are comparable is just nonsense.

I noticed that some have gone to the numbers, and think it's worth mentioning that Decibel Ratings are logarithmic, not linear, so the difference is greater than what one might think looking at the numbers.
 
There is a maximum limit of acceptable recoil for handguns to be used for defense. I carry a 1911, although I also own a 454. The 454 Casull Magnum bullet may destroy a single attacker, but if there are two attackers, the second one may reach you while you're still pulling the gun down from the first shot. I consider the 45acp hollowpoint cartridge to be close to ideal for defense.
 
Kleanbore said:
I know of a case in which the sound from the unintentional discharge of a .44 Magnum made it impossible for the shooter to explain to arriving officers what had happened.
Click to expand...

Well if it happened to this one guy this one time, it will always happen to everyone. If you haven't tried it, then you just don't know if it will happen to you or not. But perhaps you should know. You know?
 
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