Second Sniper Rifle!

Show us your pneumatic spud gun! Discuss pneumatic (compressed gas) powered potato guns and related accessories. Valve types, actuation, pipe, materials, fittings, compressors, safety, gas choices, and more.
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elitesniper
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Sun Nov 11, 2007 3:52 pm

this is my second sniper i made i just finished now and am waiting for it to cure . update* ok i got some damage pics now and some more pics of the gun hope you guys like it* new update Update**:D i got a shiny new gauge on it :D and fixed the stock from the previous position cause it was moving .
* updates*
breech.
Painting the Valve.
More DAMAGE PICS:D

damge video at low pressure
Attachments
the gun
the gun
shot at 35 psi through my neigbors wall
shot at 35 psi through my neigbors wall
play dough at 20 psi 40 feet away
play dough at 20 psi 40 feet away
soft ball of play dough at 30 psi
soft ball of play dough at 30 psi
no barell on
no barell on
range at 65 psi with a rubber balls cant really see it well but its 150 yards
range at 65 psi with a rubber balls cant really see it well but its 150 yards
gun compared to my dads car
gun compared to my dads car
new gauge
new gauge
new painted valve.
new painted valve.
new bolt action breech.
new bolt action breech.
Last edited by elitesniper on Thu Dec 20, 2007 11:37 pm, edited 13 times in total.
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ALIHISGREAT
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Sun Nov 11, 2007 3:59 pm

looks alright but i would have put a tee in instead of the 90degree elbow and fixed the stock into that, the stock would then give you more chamber volume aswell oh and i would also have mounted the blowgun inside the two elbows.... and make sure you get those damage pics up :twisted:
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f.c
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Sun Nov 11, 2007 4:03 pm

thats definetly a nice gun. that hose connecting the blow gun to the sprinkler valve is it pressure rated ? im only asking that as it looks a quite thick and doesn't appear to have those strand of metal or plastic in it to strengthen it. the last thing you want is your gun piloting when you don't want to.
can i be a sasquatch ?
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elitesniper
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Sun Nov 11, 2007 4:06 pm

wat isnt that bad to have ur stock as a tank it give dead space or sumthing das why i didnt do the tee thing
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ALIHISGREAT
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Sun Nov 11, 2007 4:08 pm

elitesniper wrote:wat isnt that bad to have ur stock as a tank it give dead space or sumthing das why i didnt do the tee thing
its only dead space if its not part of the tank... or if its not part of the tank and its not blocked off.
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elitesniper
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Sun Nov 11, 2007 4:18 pm

i mean like if the stock is the tank too it slows down the air flow?
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elitesniper
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Sun Nov 11, 2007 11:13 pm

can somebody tell the C:B ratio of my gun has cuase iono how to
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the beast
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Mon Nov 12, 2007 4:14 pm

its really hard to tell the C:B ratio just by looking at it but the way i tell my C:B ratio is just pour water into the chamber until it is full and measure it then do the same to the barrel. then just simplify or divide or such till it is in simple forms. Example:Chamber=10.9 cups, Barell=9.8 Cups or 10.9:9.8 then just simplify to get your ratio. Hope this helps. :)
Great cannon too i like the handle.
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elitesniper
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Mon Nov 12, 2007 6:20 pm

dus no one like my gun:[
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Hubb
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Mon Nov 12, 2007 6:26 pm

elitesniper wrote:i mean like if the stock is the tank too it slows down the air flow?
I haven't really tested it, but the ones I've built...well, I think this statement is just a little over-rated.

As far as the C:B, it is definitely less than a 1:1 but it is hard to tell as of now. What is the size / length of the chamber and the size / length of the barrel?
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elitesniper
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Mon Nov 12, 2007 6:32 pm

hubb017 wrote:
elitesniper wrote:i mean like if the stock is the tank too it slows down the air flow?
I haven't really tested it, but the ones I've built...well, I think this statement is just a little over-rated.

As far as the C:B, it is definitely less than a 1:1 but it is hard to tell as of now. What is the size / length of the chamber and the size / length of the barrel?
there both 1inch but the chamber is like 1 inch longer
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elitesniper
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Mon Nov 12, 2007 6:33 pm

wait less then 1:1 is bad? and btw the recoil of this thing is MASSIVE
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Hubb
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Mon Nov 12, 2007 6:45 pm

1:1 on a pneumatic is not bad. It was just my prediction (seeing as how the chamber was shorter than the barrel).

As far as the power of a pneumatic, that all depends on the kind of pressure, type of air flow, etc. It is less effected by C:B.

As far as your launcher, it looks good and that was a pretty nifty way of adding the stock.

Oh, how long is the chamber and barrel?
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potatoflinger
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Mon Nov 12, 2007 6:46 pm

Great looking gun, I also like the play-doh ammo idea.
It's hard to soar with eagles when you're working with turkeys.
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elitesniper
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Mon Nov 12, 2007 6:51 pm

barrel is 30 inches, the chamber is 39 inchs if u add the bends and everthing else behind the valve not the stock tho
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