pistonvalved copper gun

[RDX,]

hi ,this is my first gun that i post here ,I hope you like it much

I`m not very good at english so i don't know what to say of the gun
but here is the basic things you need to know

chamber: 28mm copper
barrel: 22mm copper,id 20mm
piston: nylon ,light weight,od 26,?mm
seat: od 22mm ,id 20mm
pilot valve: 1/2" qev
qev pilot: modded blowgun
pressure:about 10bar

and if you think why i used 1/2" qev for pilot:
i had one and its good stock 8)

i havent shoot chrono tests yet, but of my 15 pneumatic cannons this might not have best but still very high muzzle velocity for it`s size

for damage, i shooted 10mm steel rod easily through 15mm plywood using 8bar

some pics:

hole gun

http://www.putfile.com/pic.php?img=5981424


lathed parts ,white one is the piston

http://www.putfile.com/pic.php?img=5981417

[Brooner115]

Thats a pretty nice looking cannon you got there! Thanx for posting it here... I guess. Where did u post cannons before? Nice lathing its pretty clean. May i suggest a longer barrel though that would improve power and accuracy.

First post WHOO WHOO

[RDX,]

Thats a pretty nice looking cannon you got there! Thanx for posting it here... I guess. Where did u post cannons before? Nice lathing its pretty clean. May i suggest a longer barrel though that would improve power and accuracy.

First post WHOO WHOO

some i posted spudtech forums and some i even didn't because its not easy to write about the cannon if you don't write english well ,now I write english better so i have started posting

and yes longer barrel would improve power and little accuracy but I still use short barrel because i maked this gun to be easy to take somewhere to shoot with my friends ,if i need more power i thread this barrel of and put longer one

[robert23]

Nice man, its a clean looking gun. How long is it overall?

[potatoflinger]

That is one beautiful gun

[RDX,]

Nice man, its a clean looking gun. How long is it overall?

thanks , overall lenght is 29,5" and barrel is 19"

[Velocity]

Damn, thats a beautiful gun... looks fun to hold as well. Nice work!

[al-xg]

Looks good, but that QEV vents near you head when you shoulder it ?

[origin unknown]

That's one sweet metal gun you've got there! Looks like one of chaos's guns. What country are you from?

[shud_b_rite]

That is one nice looking cannon. Looks very tidy and professional. One question, forgive me if I am blind but where is the fill valve?

[iPaintball]

That gun is sweet! I wish I could make copper guns as good as yours... Keep up the good work!

[origin unknown]

Did you paint your gun silver?

[Pyro Ninja]

very nice .....looks kinda like galvanized steel.......good job

[RDX,]

Looks good, but that QEV vents near you head when you shoulder it ?

yes, but there is a thing that reduces flow little so now the flow don't hurt me I´m not sure what the name is but it might be "breather" not sure.
you can see it top of the qev little chrome thing.

origin unknown I´m from Finland
and yes i did paint it silver and I think it looks better then copper

and fill valve is here: http://www.putfile.com/pic.php?img=5981420

and thanks for the good comments

[spud yeti]

Nice looking cannon! I really like it! well done