Home-Made Qev Rifle with .40 pellet

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.
spike33
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Thu Jun 26, 2008 6:13 pm

Hi , i am clement , a 17 years old French boy who love build home made airguns

i'll show you a basic rifle with a home-made qev ( )

its a gun with an aluminum air tank , a 16mm x 1000mm copper barrel and with a powerful blowgun

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and after i have change the barrel to a .40 x 1 meter and i have make some pellets :

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i have make a video of the performances :

at 10 meter i put 6 pellet in a 8 centimeter circle




sorry for the bad english :oops:
nsane-spuds
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Thu Jun 26, 2008 6:34 pm

I like it, nice, clean and powerful!

Oh and also welcome to SpudFiles.

Ps c'est drole... J'etais justement entrain de regarder tes Pac sur patator.frbb.net. Tu devrais poster tes autres Pac le monde de SpudFiles vont les adorer. Et puis... ton anglais est vraiment pas si mal que sa :)
Last edited by nsane-spuds on Thu Jun 26, 2008 6:37 pm, edited 1 time in total.
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Mitchza89
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Thu Jun 26, 2008 6:35 pm

Beautiful looking gun Spike. I love how clean this gun looks. I've seen the video of your piston valve before, but I don't understand french :( .

Anyway, job well done and welcome to Spudfiles :D
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POLAND_SPUD
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Thu Jun 26, 2008 6:36 pm

hey that's the best low calibre gun I've seen on this site... It's ekhm..... how should I put it.... perfect :?
what pressures are you using it at ?


BTW welcome to spudfiles :wink:
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nsane-spuds
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Thu Jun 26, 2008 6:39 pm

I could translate the video or ad subtitles if you guys want... but I need Spike's approval to do so...
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Pilgrimman
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Thu Jun 26, 2008 6:42 pm

Nicely done! I hope that thing is being used at high pressure! Welcome to Spudfiles!
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Mitchza89
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Thu Jun 26, 2008 6:47 pm

The only thing that worries me is the parts he uses. I doubt I'll be able to get that tee with a male porting on the side. Eh... I'm working on a linear valve at the moment anyway.

What pressures do you run this gun at spike?
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STHORNE
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Thu Jun 26, 2008 7:27 pm

wow, you did an amazing job. i would love to see more of your creations.

is the copper barrel new? Because I don't see any oil stains or corrosion on it at all.

10/10 - clean, shiny, and beastly as hell :wink:
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potatoflinger
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Thu Jun 26, 2008 7:34 pm

That is amazing! It is one of the cleanest launchers I have ever seen!

Great ammo too 8)
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VH_man
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Thu Jun 26, 2008 7:53 pm

that is quite the nice launcher........

what exactly is your air chamber though??

and BTW i found that same fitting you used for your piston valve at my hardware store, a how-to on this piston valve would be amazing...
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iPaintball
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Thu Jun 26, 2008 8:13 pm

Very nice gun man! Extremely clean too. Haha there was a topic on your homemade "QEV" a while ago...
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CO2 tank hybrid: Gotta fix the meter :(
Cane gun: Needs a pilot/fill setup
1.5" piston valve gun: Almost done
spike33
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Thu Jun 26, 2008 8:20 pm

Thanks a lot !

the gun run at 130 psi ( 9 bars ) and the air chamber it's an aluminum bicycle bottle , and i can put a maximum of 200 psi

the barrel is a high polished cooper tube :wink:

i love it because he have a exellent accuracy , next week i'm going to put a red-dot BSA 2x42 tactic :

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rp181
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Thu Jun 26, 2008 8:26 pm

Love it. Nice. and clean. Would be awesome if you could color the tank copper color.

Dont know if you saw it, but there was a thread recently regarding your valve, its in the pneumatic canon discussion, near the bottom of the page.

BTW, your english isnt bad at all, better then some americans :wink:
Last edited by rp181 on Thu Jun 26, 2008 8:32 pm, edited 1 time in total.
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FishBoy
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Thu Jun 26, 2008 8:28 pm

b-e-a-utiful :D :D I love it, you need some more damage pics, what pressures do you use it at?
spike33
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Thu Jun 26, 2008 8:36 pm

soon I will try to put a bottle which holds the high pressure, because I have build a high pressure pump , full metal which goes up has 430 psi (30 bars)
there are a problem with the blowgun which go only to 150 psi!

here it is, it is very out of copper, with brass connections.
it is a system of piston O ring, and the system not return functions with a ball and a spring.

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