SpudFiles

My latest creation, a very basic pneumatic rifle with a couple of add-ons.
It is an inline pneumatic with a 1 1/2" reservoir, 1/2" barrel, ball valve and a schrader tyre valve.
It then has telescopic sight (1.5x), a pressure gauge and a PVC flash hider.
I have fired it at 80 PSI, but it can easily go higher without leaking.
I mainly fire naked AA batteries (plastic coating removed) without wadding, but you can fire anything that fits down the barrel snugly. The batteries give it a noticable recoil.
I havent performed a range test yet but I believe it will fire quite far.

This gun was recycled from my Marble combustion cannon, I unscrewed the end cap and barrel and used PTFE tape to fit a Ball valve and schrader valve.
I left the igniton screws in the chamber wall since they already sealed it quite nicely (however later I unscrewed one, widened the hole and fit the pressure gauge tube). I created the barrel from a piece of 1/2" pipe.

The flash hider was made from an old ball valve that I disassembled.
To make the sight and holder, I first found an old plastic wall clip (used to clip broomsticks to the wall and stuff), I filed down the edges and superglued it onto the gun. The sight is an old toy telescope that has approximately 1.5x magnification. It ended up perfectly straight in line with the barrel.
The pressure gauge is from an old foot pump, I liked the markings too much to throw it away!. I took off the red hose that was connected to it and replaced it with plastic aquarium tubing.

The operation of the ball valve is very smooth so I dont see any need to change it for now.
Its quite fun to fire it mostly due to the recoil and the mist that comes out of the barrel after each shot, smoking gun anyone?

Its called the barett E-444, because of the flash hider and 444 since its part of my nick.

Overall, its my favourite pneumatic so far and I just love the way it looks
and cost wise I'd say it cost me around 14 pints!

I have added a new mount for the pressure gauge, made from rectangular electrical wall trunking.

If anyone can give me an idea for a grip that would be great!

it doesnt look anything like a barett sniper rifle

Yeah, I know, sorry about that I just love the barett so much I wanted to name my gun after it! You know sort of a tribute.

b u l l s h i t diamondsnakey, at first glance i instantly reconised it and that is a really good piece of work.

how about a floating barrle kind of thing with a bi pod and so on.eg:

I planning to make a bipod out of piece of half inch pipe split in two and loop head screws, it should be able to fold down.

I didn't really understand your drawing, is it a handle or a bipod? Is It wood?

well i was thinking that the stock would be wood because i could make it easy but you might not have the resources,but yes the bipod is separate ,it is skrewed on to the stock,sorry for the crap drawing.

I really like this gun and especially with the unique flash hinder. It looks great but is gonna look totally great when/if you put a stock on it. By the way I really like the way you improvised with the sight and clip.

Thanks, the gun has been updated now, the pressure gauge is no longer taped so akwardly onto the gun, it now sits on a homemade stand and looks neater. New pic is up top.

i want a 50. caliber rifle soooooo much

Don't we all? But the barett is in my opinion the best of the bunch, especially when used with AP rounds.

they don't have alot of kick back right??

Well in real life the floating barrel means that more of the energy is transferred to the bullet and less is transfered as recoil, I have seen one fired from a Bi-pod and considering the size of the round, the shooter hardly seemed to move.

I just found out how im going to make the stock and grip:

http://www.spudfiles.com/forums/viewtop ... 6&lighter=&

Thanks Urban Ninja

i think you should use a better valve, anything but a ball valve.

Cool I have just pumped it up past 100 PSI (my onboard meter is now past its limit) with one small leak around the pressure gauge/chamber interface. But its so small you have to put your ear up right next to it to hear it, and it only loses about 1 PSI per second.

At this pressure it really does not matter how quickly I open the valve!

When the presure gets bigger, the projectile moves faster>you need much greater flow>the ball valve is very un cool.I think that the coke bottle hybrid is the best cheap sniper rifle.