Switzerland barrel silencers

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AnMig

Golden Member
Nov 7, 2000
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Any one know what these are, about mid third of the video, it seems to be very effective
in silencing the report of the firearm. (minus the supersonic bang)

https://www.youtube.com/watch?v=B31SUm0nrwc[/QUOTE]



Did you guys see the huge barrel sized tunnel silencers they where using?
Are those active noise cancelling devices or passive?

They should be legal in the us since its not attached to the barrel right?


Anyone know what those things are called, need to research and try build one for myself.

Peace
 

pontifex

Lifer
Dec 5, 2000
43,804
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first I have ever seen anything like that. not sure that it's actually silencing anything though as they are still wearing hearing protection. it also seems like they're rifles are attached to the barrels by a chain, so maybe something to do with safety? there's also some kind of electronic device next to it also. not sure what that is - maybe to tell where the bullet hit?
 

phucheneh

Diamond Member
Jun 30, 2012
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It seems like some kind of 'sound trap' to me. Not really a silencer/suppressor, but I think it's capturing or redirecting the blast of the highly supersonic round. Sounds like it's still plenty loud downrange, but the big booms that would be hearing at the firing line are more controlled.

People will argue with you to death on it, but the fact of the matter is: true suppression of anything besides an airgun (or perhaps the tiniest of firearm cartridges) requires heat exchange. You're reducing the energy of the sound by converting it to heat before it leaves the end of the can.

If you took one of those devices seen in the OP's video, stuck it in an indoor range and fired .30-06 or other big rifle round through it, I doubt it would have any effect whatsoever. The shockwave from the round is still going to escape and bounce all over the place.

...p.s. if you do go to an indoor range with rifle lanes, it's worth it to throw a few rounds through a large caliber bolt-action. I hate to be a range-troll, but it's highly amusing to just intermittently sound like you're detonating fuckin' grenades in your lane. :awe:
 
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KentState

Diamond Member
Oct 19, 2001
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...p.s. if you do go to an indoor range with rifle lanes, it's worth it to throw a few rounds through a large caliber bolt-action. I hate to be a range-troll, but it's highly amusing to just intermittently sound like you're detonating fuckin' grenades in your lane. :awe:

I always bring my 50AE DE and fire a few down range and watch as people wonder what is going on.
 

davmat787

Diamond Member
Nov 30, 2010
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Suppressors, not silencers unless there is some new secret Swiss tech I know not of.

I like what the Swiss guy says in the video: "The key to freedom is being able to protect yourself, and if you don't have the tools to do so, you are at the mercy of those that do".
 

coxmaster

Diamond Member
Dec 14, 2007
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Suppressors, not silencers unless there is some new secret Swiss tech I know not of.

I like what the Swiss guy says in the video: "The key to freedom is being able to protect yourself, and if you don't have the tools to do so, you are at the mercy of those that do".

The ATF calls them silencers.. So the term is pretty much accepted by most of the gun community.

Also the guy that invented the first one called it a silencer..
 

phucheneh

Diamond Member
Jun 30, 2012
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B-b-b-but that's what hollywood calls them, and they're always wrong, and you can't ever 100% 'silence' a gunshot! :p

And steel doesn't float, so I guess there are lots of things that people shouldn't call 'boats.' Wait, those are ships. Only sometimes they're still called boats. What about 'freighters'?:whiste:

'Who gives a shit' is the key phrase here. 'LOL silencer LOL' gets the same response from me as someone who gripes at you for calling a combustion engine a 'motor'. Ugh, shut it...if that's the best thing you can find to be 'right' about, maybe you should just not talk.
 

davmat787

Diamond Member
Nov 30, 2010
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The ATF calls them silencers.. So the term is pretty much accepted by most of the gun community.

Also the guy that invented the first one called it a silencer..

I know I am being a pedant for pointing it out, and I am usually nothing of the sort. But they certainly don't silence a gunshot, tis all.

And who cares what the ATF says, aren't they the same group that told gun shop owners to go ahead and make those straw sales when they did the right thing and reported them?
 

DigDog

Lifer
Jun 3, 2011
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Pedantic but not necessarily correct. Suppressors suppress flash (but not entirely), and silencers silence sound but, again, not entirely.

If you really want to be pedantic *and* correct, you would call them dampeners, but since we have this amazing tool called brain, which allows us to understand the use of the word "silence" as meaning reduction of sound, methinx the word Silencer is actually correct;

since the guy who invented them, and named them, choose it.

A piano is called, originally, pianoforte, or "soft loud", yet it's first loud, and only secondly soft.
But it doesnt f* matter because the name is pianoforte, not fortepiano.

This hating on the word silencer is something which came out a few years ago, by some smartass who said "hey, them things dun mayks em gun silent, thay shouldnt be called silence-thing then".

great reasoning and also totally wrong. Everyone else is jumping on the bandwagon.
Here is a question for you: how many dB does silence measure at.
(hint: the answer is not "zero")
 

DaTT

Garage Moderator
Moderator
Feb 13, 2003
13,295
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Sticker in his gun lock-up, "Fight Crime, Shoot Back"
 

highland145

Lifer
Oct 12, 2009
43,934
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3274d1129422306-backyard-shooting-range-noise-range-sound-suppressor.jpg

Shooting tube. No, not mine. Let the neighbors hear me.
 

Howard

Lifer
Oct 14, 1999
47,982
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Pedantic but not necessarily correct. Suppressors suppress flash (but not entirely), and silencers silence sound but, again, not entirely.

If you really want to be pedantic *and* correct, you would call them dampeners, but since we have this amazing tool called brain, which allows us to understand the use of the word "silence" as meaning reduction of sound, methinx the word Silencer is actually correct;

since the guy who invented them, and named them, choose it.

A piano is called, originally, pianoforte, or "soft loud", yet it's first loud, and only secondly soft.
But it doesnt f* matter because the name is pianoforte, not fortepiano.

This hating on the word silencer is something which came out a few years ago, by some smartass who said "hey, them things dun mayks em gun silent, thay shouldnt be called silence-thing then".

great reasoning and also totally wrong. Everyone else is jumping on the bandwagon.
Here is a question for you: how many dB does silence measure at.
(hint: the answer is not "zero")
ugh
 

davmat787

Diamond Member
Nov 30, 2010
5,512
24
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Pedantic but not necessarily correct. Suppressors suppress flash (but not entirely), and silencers silence sound but, again, not entirely.

If you really want to be pedantic *and* correct, you would call them dampeners, but since we have this amazing tool called brain, which allows us to understand the use of the word "silence" as meaning reduction of sound, methinx the word Silencer is actually correct;

since the guy who invented them, and named them, choose it.

A piano is called, originally, pianoforte, or "soft loud", yet it's first loud, and only secondly soft.
But it doesnt f* matter because the name is pianoforte, not fortepiano.

This hating on the word silencer is something which came out a few years ago, by some smartass who said "hey, them things dun mayks em gun silent, thay shouldnt be called silence-thing then".

great reasoning and also totally wrong. Everyone else is jumping on the bandwagon.
Here is a question for you: how many dB does silence measure at.
(hint: the answer is not "zero")

Thanks for the clarification and edification. To answer your question I bolded above, I assume it would depend on many factors such as distance, pitch, ear/microphone sensitivity, altitude/air pressure, .etc. But I assume you are referring to normal human hearing.

I did not know until just now that the decibel scale is not linear. A 20 dB sound has a power ratio of 100 while a 10 dB sound has a power ratio of 10. So kind of like the Richter scale that measures on magnitude. That is a 2.0 earthquake has 10 times the energy of a 1.0 earthquake.

So, back to your question: How many dB does silence measure at, with the hint that the answer is not 0. To be honest I do not know the answer, but I would guess 0.1 or a similar number.

I would be very interested in the answer and why it is not zero. Thanks!
 

mikeford

Diamond Member
Jan 27, 2001
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A VERY quiet room, like a recording studio is around 25 to 30 dba. Luxury car with quality seals etc about 65 dba cruising down the highway 60 mph.
 

Meghan54

Lifer
Oct 18, 2009
11,684
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So, back to your question: How many dB does silence measure at, with the hint that the answer is not 0. To be honest I do not know the answer, but I would guess 0.1 or a similar number.

I would be very interested in the answer and why it is not zero. Thanks!


Actually, sound levels can be measured to zero or below. The Orfield Laboratory's NIST certified Eckel Industries designed anechoic chamber is "The quietest place on earth" measured at −9.4 dBA. (Listed in the Guinness World Records, 2005.) So, I guess that'd be true silence.

The University of Saiford has an anechoic chamber that is unofficially claimed to be the quietest in the world with a measurement of −12.4 dBA.

Typically, the interior of an anechoic chamber is very quiet, with typical noise levels in the 10–20 dBA range, and could be considered silent. The human ear can typically detect sounds above 0 dBA, so a human in such a chamber would perceive the surroundings as devoid of sound.
 

DigDog

Lifer
Jun 3, 2011
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-11dB circa. tested in the best yet anechoic chamber we have built;

in theory, absolute silence is possible, but in practice it isn't. Air moves, plus there are constant vibrations coming from the earth, which excite the particles.
Note hat the amplitudes necessary to register ~10dB or lower are really minute.

Frankly, i've always considered the decibel scale an aberration, but it seems we are stuck with it (and the other 5 scales ALSO called the decibel scale)

edit: ^^ it seems i havent got my facts right; will have to read some more. and edited some more. (i remember it was -11 .. go figure)
 
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