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How to: Silent .22 without class III/tax stamp
#1
[Image: DSCN0355_zpsa67f14dc.jpg]
My custom Ruger 22/45 with threaded barrel extension

"Hollywood quiet" pistol Ingredients:

* .22 pistol with threaded barrel (the longer the better)

* Practical solutions or comparable threaded & rifled barrel extension/backpressure booster (not a class III item, no stamp required). The main purpose of this item is to increase back pressure of low powered subsonic rounds, so that the weapon will still hopefully cycle with most loads, but it does make the weapon quieter by virtue of being a long tube.

* Aguila Super Calibri ammo

- Will not cycle action, but...the weapon is quieter than a typical air rifle. The impact of the bullet is louder than the muzzle report. Report doesn't "sound like a gunshot." People who hear a demonstration are blown away at how quiet it is.

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No hearing protection required (YMMV) indoor shooting pistol ingredients:

*.22 pistol with threaded barrel. (the longer the better)

* Practical solutions or comparable threaded & rifled barrel extension/backpressure booster

*Aguila Sniper subsonic 60gr .22 short ammunition

- Cycles action on my Ruger Mk22/45 very reliably. It still "sounds like a gun", but it is much, much, much quieter than the average .22 pistol firing typical standard velocity .22LR ammo. Some weapons may not stabilize the long 60 gr bullet. Typical .22 subsonic ammo also works, but is noticeably louder.

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.22 semi rifle action cycling, "cap gun quiet"

*Any .22 rifle with a threaded barrel. Again, the longer the barrel the better.

* Practical solutions or comparable threaded & rifled barrel extension/backpressure booster

*Aguila Sniper subsonic 60gr .22 short ammunition

-Cycles action of a brand new S&W M&P 15/22 very reliably. Sounds like a "cap gun", significantly quieter than a firecracker. This is a really slick set up. We were playing with this set up at the range the other day, and everyone was very impressed by how quiet it is.

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.22 manual action "hollywood quiet"

* Any .22 lever, pump or bolt action rifle. The longer the barrel the better.

* Quietest: Aguila Super Calibri. Slightly louder: CCI .22 short CB (slightly louder, but also slightly more powerful, and you can fit over 20 of them in a typical tube magazine).

-People are totally amazed at how quiet this combo is. Even with a 16" carbine, with super calibri, the report is significantly quieter than a powerful air rifle. With .22 short CB it is about as loud as a typical air rifle. Neither one "sounds like a gun." My Browning BL-22 lever action cycles both rounds perfectly, and it will hold like 24 of the .22 CB shorts. Soo much fun. Big Grin

Have fun, happy quiet tax free shooting!
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#2
Another one to add to the list:

A 4" or longer barreled 22lr revolver (my s&W model 17 in this case)
CCI CBs.

Nearly as quiet as many blowback suppressed 22 lrs. There is noise, but it is less than an air rifle. I have shot many rounds w/o the need for hearing protection like this.
I swear, by my life and my love of it, that I will never live for the sake of another man, nor ask another man to live for mine.
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#3
Basically, the longer the barrel, the quieter it's going to be is the whole idea.
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#4
Find me a set up for a GSG-5, that will cycle the action and then we're talking
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#5
Those are some sick grips.
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#6
Those are neat options and I own a M&P 15/22. I wanted to add a flash hider on the rifle next year, is it possible to get the barrel threaded and have a removable flash hider in case I wanted to try this idea? I also noticed you fed 22 shorts through the 15/22, is that a typo? Finally, do these sub-sonic rounds have any power or are these rounds nothing more than glorified BB's? Shrug
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LifeInPa, proud to be a member of pa2a.org since Sep 2012.
Sanity, yours if you can keep it. Confused
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#7
dc dalton;13275 Wrote:Find me a set up for a GSG-5, that will cycle the action and then we're talking
I listed the exact set up that will work.

60 gr aguila sniper subsonic .22 shorts with a 6" (or even longer if you can get one) threaded barrel adapter/back pressure booster. (a 6" model is pictured on the Ruger 22/45 in my OP)

An M&P 15/22 is "cap gun" quiet with a 6" extension. Your GSG should be just as quiet as well.

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#8
LifeInPa;13378 Wrote:Those are neat options and I own a M&P 15/22. I wanted to add a flash hider on the rifle next year, is it possible to get the barrel threaded and have a removable flash hider in case I wanted to try this idea?
Someone sells a cheap adapter that goes on the end of an un-threaded 15/22, or you can buy them threaded. The one i tested was threaded, but my brother's 15/22 has an adapter, and he says it works fine.

Quote: I also noticed you fed 22 shorts through the 15/22, is that a typo? Finally, do these sub-sonic rounds have any power or are these rounds nothing more than glorified BB's? Shrug
The 60gr Aguila subsonic uses a very, very long 60 grain bullet in a .22 short case. It cycles a .22 LR because the bullet is so long that the OAL ends up the same as a typical .22 LR cartridge.

PIC:

[Image: AGUI22SSS.jpg]

I presume the round is loaded close to max pressure to get that big bullet moving at all. It is said that some barrels wont stabilize the bullet, but the guns ive tested (Ruger 22/45, Browning BL-22 and S&W M&P 15/22) have all seemed to stabilize it just fine. Ambient temp and range can affect this as well, of course. But i've had really good results.

Here's a gel test:

[youtube]8GwRgIpbflA[/youtube]

It is definitely a lethal round. With good shot placement it should work just fine. It appears to tumble on impact.
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#9
Val, do you have any links or sources proving the legality of these barrel extensions/boosters? I know we talked about this before and you swore that they were totally legal, but I did a quick internet search and it turned up nothing.

Here is the definition of a silencer:

Quote:Any portable device designed to muffle or disguise the report of a portable firearm.

It could be argued that a barrel extension is not designed to muffle or disguise the report of a firearm, but it does so anyway.

Ultimately I'd like to see a letter from the ATF technology branch regarding this particular product before ever taking possession of one.
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#10
bac0nfat;13815 Wrote:Val, do you have any links or sources proving the legality of these barrel extensions/boosters? I know we talked about this before and you swore that they were totally legal, but I did a quick internet search and it turned up nothing.
Thread on barrel extensions are not regulated in any way by the law. Wink

But: if you don't feel sure about it, don't buy one.

Here is a manufacturer selling them online. When i asked him about legality, he said the ATF told him it's an unregulated accessory. It is a patented device and he freely sells them to anyone on his webpage:

http://www.practicalpage.com/index.php?a...oductId=67

"Our .22LR Booster was designed to look like a suppressor but to work like a barrel extender. The barrel itself is riffled with a standard right hand 1:16 twist and should work effectively with any like barrel. The threads are 1/2 x 28 TPI.

Price: $79.95"

No serial number, no registration, no tax stamp.

If one wanted to take an alternate (and more expensive route), one could just get a longer barrel for whatever gun they're trying to reduce the noise of.
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