What do barrel shrouds do?

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ABshooter · #1 Post by **ABshooter** » Sat Mar 04, 2006 8:34 pm

And how do you make them? Like I mean are they just a tube/pipe glued onto the barrel or do they have stuff inside?

Aaron · #2 Post by **Aaron** » Sat Mar 04, 2006 9:59 pm

they make your gun look cool, and cover up any nasty scratches from previous front sights.

ABshooter · #3 Post by **ABshooter** » Sat Mar 04, 2006 10:29 pm

Aaron_2289g_guy wrote:cover up any nasty scratches from previous front sights.

That sounds like the voice of expirience

Aaron · #4 Post by **Aaron** » Sat Mar 04, 2006 10:32 pm

voice of experience eh? highly doubt it. i had a shroud made out of copper pipe a while back and relized it was crap so i took it off.

Jester · #5 Post by **Jester** » Sat Mar 04, 2006 10:37 pm

They can be very effective in reducing the sound... But that's illegal

I was curious how well it would actually work, so I made a simple one out of copper tubing as a test. I was quite surprised at how well it worked. It looked ugly as hell though!

They are also good for aesthetics.

airsmith282 · #6 Post by **airsmith282** » Sat Mar 04, 2006 11:51 pm

a barrel shroud is nothing to do withmaking a gun quieter

true its covers the barrel and makes it look cool depending on the gun of cource also alot fo guns like the daiy 856 and 1077 and many others have a barrel shroud also the crosman 38 t and c have a barrel shroud and it goes over the barrel to make the gun look like a gun has nothing to do with making it quiet at all, to make the gun quiet you need a different device for that and thoes are illeagle

now for the home made copper pipe deal what happen thre is you likely went past the muzzle area so the sound got redirected because when you fired the gun instead of the air going out in every direction the air was instead redirected reformed and pushed forward so you would hear less at your end but more at the target end ...

Jester · #7 Post by **Jester** » Sun Mar 05, 2006 9:22 am

The purpose of a "real" barrel shroud is to reduce sound, and they are extremely effective. Do you think military snipers use them just to make their guns look cool? For airguns, they are generally more for looks though.

As for the copper pipe deal, the air was actually redirected backwards, further into the shroud. It greatly reduced the sound in all directions, including in front of the gun. Yes, such a device in Canada would be illegal, but they do reduce sound.

airsmith282 · #8 Post by **airsmith282** » Sun Mar 05, 2006 11:05 am

ok ill agree with that theroy if there is space between the barrel and the shroud and in order to do this the shroud should be at least 2 inch or more past the end of the muzzle,, i would have to try this out and see for my self but i wont.. but in general a barrel shoud in the airgun world is noting more then the cosmetic covering over a skinny cheaped out barrel like the daisy 856 and cr 1077 and the many others..the gun looks like a gun and the shapes are cool that can be made etc.. the front site on this style of airgun usualy prevents the air form going backward and some shrouds on airguns meet the end of the barrel flush so its all looks there. only when you go past the muzzle and allow and area evack area can the air move backward into the shroud and make the gun quiet,on az flush mounted shroud where it meets the muzzle flush you would need to drill some holes only in the barrel so the air can go directly into the shroud or covering sleeve as the pellet exits the muzzle..please when you post explain in more detail what you did,,there are many types of shrouds and how you make one depends on it function of what it does and does not do...
i will stand corrected to a degree on my last reply

TCooper · #9 Post by **TCooper** » Sun Mar 05, 2006 1:50 pm

The shroud, by definition, is just a "cover" but in the airgun community the definition has changed slightly. Airguns such as the Crosman Mark1 and some low priced rifles have a sleeve on the barrel to build up the diameter without using solid barrel metal. This cover is basically a sleeve that is only there for cosmetic purposes.

The custom Crosman LD Mk1 and the TX-200 have shrouds that effect noise output. I think the Talon SS has a similar design. The barrel is encased in a large tube that moderates noise. Air Arms calls it an "over-tube" that acts as a sound moderator. Some people call them "built-in moderators" because they are not the same as a "pickle" stuck on the muzzle. The tube is longer than the barrel.
http://www.air-arms.co.uk/TXANDHUNTERCARBINE.htm

A long open ended barrel sleeve also seems to reduce noise output. My TAU-200 rifle had a 7" recess on the crown. The recess hole was 1/2" in diameter. This rifle was very quiet to shoot, likely because of the deeply recessed muzzle. The recess was not a cover so it couldn't be called a shroud/sleeve. The recess was bored into the thick factory barrel. This open ended design doesn't appear to be illegal in Canada but once you close up the end a bit, and install baffles, you are intentionally making a sound deadening device.

I guess we have three different styles of shrouds/sleeves/moderators. You can choose to call them whatever you like

1 - Basic barrel sleeve, designed only to make a pencil thin barrel thicker.
2 - Sleeve that extends passed muzzle and encloses somewhat with the intentional of reducing noise (moderator).
3 - Sleeve on barrel that extends passed muzzle but stays with parallel sides and a large open end.

Todd

Exo · #10 Post by **Exo** » Mon Jul 03, 2006 10:33 am

WOW THIS IS A GOOD INFORMATIVE TOPIC. THANKS EVERYONE. I think in the u.s. anything that reduces sound is illegal if it can be taken off the barrel. if it is part of the barrel it is legal, even if it does reduce sound.(2250 barrel can be made like a talon ss barrel)