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BB Sniper

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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Unread postAuthor: Mr.Sandman » Wed Jul 23, 2008 8:41 pm

Hey ive got this setup and i was wondering what type of valve i should use to make a convinient bb sniper. the stock is from an old rubberband gun and the barrel is a 2 foot peice of rifled brakeline.
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Unread postAuthor: iisthemuffin » Wed Jul 23, 2008 8:45 pm

Well, to fit your current design i would say a coaxial piston. I know youve made one before so it should be easy for you. Just my opinion anyway.
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Unread postAuthor: Sticky_Tape » Wed Jul 23, 2008 8:47 pm

I would say a piston valve or a easy to make hammer valve (not inline).
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Unread postAuthor: THUNDERLORD » Wed Jul 23, 2008 8:56 pm

How did you get rifled brakeline?

I'd say make it a cloud. I've been day-dreaming of converting a Red Ryder to one (Because they're $25 near me) and I think it would be cool.
I was thinking maybe 88 gram C02 cart.s to keep it compact somehow.

Or piston valve, breech loaded. 8)
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Last edited by THUNDERLORD on Wed Jul 23, 2008 8:59 pm, edited 2 times in total.
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Unread postAuthor: Mr.Sandman » Wed Jul 23, 2008 8:58 pm

i rifled it myself. it is pretty easy cause brakeline is pretty soft metal so my tool did it with ease

EDIT: id rather make single shot cause im using pellets to takeout certain
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Unread postAuthor: VH_man » Wed Jul 23, 2008 9:01 pm

what calibre is this gun?

and i reccomend a 1/4 inch QEV for your valve and pressurizing the thing to 400-500 PSI with a shock pump or fridge compressor..........
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Unread postAuthor: Mr.Sandman » Wed Jul 23, 2008 9:04 pm

the barrel in the pics is .177 but i have a .22 barrel too.

also im thinking about only going too 400 psi cause it needs to be quiet enough that it doesnt wake up my neighoors.
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Unread postAuthor: VH_man » Wed Jul 23, 2008 9:12 pm

if you do it right, you can make the chamber the perfect size so that the pressure in the barrell upon projectile exit is close to zero :D

just use GGDT.
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Unread postAuthor: Sticky_Tape » Wed Jul 23, 2008 9:13 pm

So I guess you will olny be using this at night?
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Unread postAuthor: Mr.Sandman » Wed Jul 23, 2008 9:14 pm

yeah but im really going for a compact kinda gun that dosent show a lot of internals
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Unread postAuthor: Mr.Sandman » Wed Jul 23, 2008 9:16 pm

Sticky_Tape wrote:So I guess you will olny be using this at night?


no but my neighboors are really mean and sleep for most of the day and call the cops when they hear loud noises cause they think im a terorrist testing wmd's and rpg's

EDIT: sorry about the double posts mods :oops:
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Unread postAuthor: psycix » Thu Jul 24, 2008 5:59 am

Mr.Sandman wrote:
Sticky_Tape wrote:So I guess you will olny be using this at night?


no but my neighboors are really mean and sleep for most of the day and call the cops when they hear loud noises cause they think im a terorrist testing wmd's and rpg's

EDIT: sorry about the double posts mods :oops:

Detachable silencer/suppressor.
It would be a waste of the power to make the chamber so small that it doesn't make noise.
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Unread postAuthor: Mr.Sandman » Thu Jul 24, 2008 9:51 am

yeah i already have a detachable suppresor :D


if i use a coaxial piston design then how will i do it on this gun?
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Unread postAuthor: Mr.Sandman » Sun Jul 27, 2008 4:44 pm

what kind of material should i use for the piston(besides epoxy)

EDIT: f@#k i double posted again :banghead:
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Unread postAuthor: Antonio » Tue Jul 29, 2008 5:15 pm

ah I was wondering where the stock came from> but you already said it. I use this template for my bb guns as well: Image
This is my gun:
Image
Here is the link to the post, you might be interested in the internals> check the pics +vids:
[url]http://www.spudfiles.com/forums/p-4-bb-airsoft-gun-280miles-h-with-a-new-body-t12216.html
[/url]
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