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FDP Forum / Moe's Tavern (_8^(I) / Gun supressor science

digiboy

New York City

Sep 25th, 2017 10:29 PM   Edit   Profile   Print Topic   Search Topic

Being in NYC, I don't get to mess with guns much. When I was younger living at home, my dad had a pretty decent collection of rifles. We went out shooting targets on occasion, was a good time.

Always been curious about "silencers" and how they actually work. I assume that's what these suppressors are. This is pretty cool.

The website might be kinda "spammy" depending on what kind of browser you have so I'll post a second link below that goes directly to the Youtube video.

Popular Mechanics on gun supressors.

digiboy

New York City

Sep 25th, 2017 10:30 PM   Edit   Profile   Print Topic   Search Topic

Just the youtube...

here

reverendrob
FDP Data Goon
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our time in hell
Sep 26th, 2017 12:14 AM   Edit   Profile   Print Topic   Search Topic

They're not "silencers" except in the minds of those who want all guns gone anyway.

Think of them as industrial-strength mufflers - still well over 100db for any real round, but worlds better than the 150+ of some things without!

009
Contributing Member
*****

USA

Sep 26th, 2017 05:27 AM   Edit   Profile   Print Topic   Search Topic

If I believed what I see on TV, they would reduce the noise down to the level of a pea shooter.

reverendrob
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We all want

our time in hell
Sep 26th, 2017 06:28 AM   Edit   Profile   Print Topic   Search Topic

The *only* things that are that quiet are bolt-action 22LR with subsonic ammunition.

Distance and knockdown of a flea at that point, and the package is ...large.

telewired
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Kansas City, Mo.

counting it all joy
Sep 26th, 2017 07:56 AM   Edit   Profile   Print Topic   Search Topic

So is there such a thing as a silencer that can really quiet a large round?

K4
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USA

Fat people are hard to kidnap
Sep 26th, 2017 08:36 AM   Edit   Profile   Print Topic   Search Topic

They make it so shooting will not harm your hearing. Still loud and unmistakably a gun shot.

In order to get any large caliper pistol or rifle movie quiet, it would be too large to handle. Think putting a car muffler on a handgun.

reverendrob
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We all want

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Sep 26th, 2017 09:09 AM   Edit   Profile   Print Topic   Search Topic

"Really quiet" is relative.

My Gemtech HVT takes what would be a permanent hearing damage shot down to about unsuppressed .380 - loud, to be sure, but many orders of magnitude smaller.

It's also 9" long and 28 ounces - in addition to the gun.



digiboy

New York City

Sep 26th, 2017 09:32 AM   Edit   Profile   Print Topic   Search Topic

I knew that such a device can't bring the sound down to a quiet little "thup" as portrayed in movies/TV. In the video, the gunshots with the suppressors that don't fail seem to have a different tone, more mechanical sounding and less like the report of a rifle. It's impossible to tell how loud it actually is. Gotta dig the super slo-mo anyway.

mfitz804
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Staten Island, NY

Godzilla the Thread Killa
Sep 26th, 2017 03:58 PM   Edit   Profile   Print Topic   Search Topic

Obviously if I was gonna have a gun, I want the one whit the hit man/spy style silencer so you can execute people in a crowd and nobody realizes it. Just like the movies.

reverendrob
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Sep 26th, 2017 04:41 PM   Edit   Profile   Print Topic   Search Topic

You'll be waiting an eternity for that, get a knife!

The thing that suppressors change to a degree is the report, as you note above - it's harder to determine shot location because one of the audible queues is changed substantially.

That said, if someone is shooting from far away enough that that effect works...you're not going to "see" them anyway!

Peegoo
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Deus

ex Machina
Sep 26th, 2017 05:23 PM   Edit   Profile   Print Topic   Search Topic

She *blinded* me...with SILENCE!

hpete

USA

Sep 26th, 2017 06:50 PM   Edit   Profile   Print Topic   Search Topic

My understanding is that unless the round is subsonic you still get a pronounced crack similar to a sonic boom only bullet sized rather than jet sized.

reverendrob
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We all want

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Sep 26th, 2017 06:51 PM   Edit   Profile   Print Topic   Search Topic

You do, but it's nowhere near as pronounced, or easily source-identifiable.

digiboy

New York City

Sep 28th, 2017 10:51 AM   Edit   Profile   Print Topic   Search Topic

I watched the "extended" youtube video of that demo. They point out that the supressor is normally not made of clear acrylic so it contains and therefore hides most of the gas and resulting flame. For military use at night that may be at least as valuable as the noise reduction.

rok-a-bill-e
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Nashville,USA

Clawhammer Rules!
Sep 28th, 2017 10:57 AM   Edit   Profile   Print Topic   Search Topic

Anyone heard a subsonic 300 Whisper/Blackout round through a can? Most are shooting high-velocity Blackout rounds but the original Whisper idea was a quiet yet still relatively powerful round, at least compared to the 22. I have always wondered how well they succeeded in that?

Billy the Kidder
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Westlake, Ohio

True wisdom is knowin what to overloook.
Sep 28th, 2017 09:11 PM   Edit   Profile   Print Topic   Search Topic

As others have noted, even a suppressed round is pretty loud. What I found interesting was the the sonic crack of the bullet going overhead breaking the sound barrier, the first time I worked the pits at Camp Perry.

rok-a-bill-e
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Nashville,USA

Clawhammer Rules!
Sep 30th, 2017 11:58 AM   Edit   Profile   Print Topic   Search Topic

I found an answer to my own question, and it appears that if one wants something harder hitting than a .22, and still very quiet, a 220 grain 30 caliber Whisper/Blackout round kept around 1000fps seems to be the ticket. But the round still makes a loud noise when it hits.

Hickock45 having quiet fun

reverendrob
FDP Data Goon
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We all want

our time in hell
Sep 30th, 2017 07:26 PM   Edit   Profile   Print Topic   Search Topic

Needs to have comparison versus unsuppressed, and from different positions - the operator position outdoors is the quietest for any can (since it's all going out even further away from the user), and without compared to the normal unsuppressed round, hard to say how good it is.

Regular supersonic 7.62N is "hearing safe" with a can outdoors, after all.

FDP Forum / Moe's Tavern (_8^(I) / Gun supressor science




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