Suppressor/Silencer Question

Self ^ | 17 Jun 10 | Self

[OneWingedShark]

Yesterday I came across a really intriguing firearm.

The De Lisle Silent Carbine which has an integrated silencer…; while some might quibble over my usage of the term ‘silencer’ instead of ‘suppressor’ I should think that the De Lisle qualifies as the former.

Now, I’ve been thinking about firearm design a bit and I think I may try to enter the gun manufacture business should my state pass a Firearm Freedom Act, which brings me back to the point I was contemplating: silencers/suppressors. After a little research on wikipedia about the design of them I was reminded about a valveless “one way” tube (termed Valvular Conduit) developed by Nikola Tesla that I found on a page about jet engines. Depicted below:

So, since I’m no expert on fluid dynamics, my question is could the Valvular Conduit be used as a suppressor? I realize that, as presented, the overlaps in the conduit wouldn’t allow a bullet passage, but consider if that part of the passage were placed inside the grooves of the rifling and offset enough to allow passage of the bullet and oriented such that it opposed gasses escaping from the weapon. Would/could it work? Would it be effective?

[OneWingedShark]

Thank you.

[mnehring]

I have no idea, I’m just bumping to read the responses of people who know. :->

[chuck_the_tv_out]

The picture comes through as an ad - they must not like hotlinking

“my state pass a Firearm Freedom Act”

I’d like a ready reckoner of which states have which laws, including things like that. Is there such a site?

[b4its2late]

So, since I’m no expert on fluid dynamics,

Either am I, but I do know how to drink lots of beer. Does that qualify me?

[thackney]

I think that:

“but consider if that part of the passage were placed inside the grooves of the rifling and offset enough to allow passage of the bullet”

and

“oriented such that it opposed gasses escaping from the weapon”

are conflicting specification requirements.

[laker_dad]

I’m interested too, even though my wife made me get rid of my guns years ago...

[gundog]

Beer in, urine out. If that ain’t fluid dynamics, what is?

[b4its2late]

LOL!

[Mr. K]

I just read something the other day that silencers do not reduce the gunshot to the sound of a cat landing on a pillow... they merely reduce it from 140 db to 120db or something like that

Any one here ever shot a gun with a silencer?

I also read that an aluminum soda can loosely packed with steel wool makes a realtively good silencer- anyone care to try that and let me know?

:)

[OneWingedShark]

I’d like a ready reckoner of which states have which laws, including things like that. Is there such a site?

Yes.

[OneWingedShark]

Watch the video (first link).

[thackney]

Any one here ever shot a gun with a silencer?

I have shot 9mm guns with a suppressor.

It was similar to firing 22 lr compared to 22 CB shorts in noise change.

[kbennkc]

1.False
2. Yes
3. No

[The Toll]

I wasn’t here and I never read this thread!

[Mr. K]

Nikolai Tesla was one of the most brilliant scientist that ever lived

I would give anything to have worked with him- he is my personal favorite scientist (who is yours?)

There is a nice statue of him in Niagara Falls

(he was single handedly responsible for electricity we all use today - AC current - despite Edison doing the most stupid thing one scientist can do to another, which is to try to stop the success of a better system for your own financial gain - sort of like VHS and BETAMAX ha ha)

[RushIsMyTeddyBear]

I also read that an aluminum soda can loosely packed with steel wool makes a realtively good silencer- anyone care to try that and let me know?

____________________________________________________

Hold muh beer! :D

[OldMissileer]

Makeshift silencer: A one gallon plastic milk jug. One-time use but very effective.

[fso301]

If you make the barrel really, really long, you will achieve a legally silenced firearm requiring no federal permits or licenses.

[P8riot]

You only “rent” beer.

[SJSAMPLE]

More like -39db, with is about an average rating for a rifle suppressor (Gemtech, Surefire, AWC, et al.).

For a rifle, it makes the sound bearable without ear protection, but nowhere close to silent. I was interested in a Gemtech Halo suppressor, but it doesn’t do enough for me.

Now, you can suppress a round integrally by slowing down the round and bleeding off/moderating gas along the entire length of the barrel. An integral .22 is about as quite as an airgun with the right ammo.