Copper QEV cannon (caution picture heavy!)

[sharpshooter11000]

Here's my copper QEV cannon, nothing new but I'm pleased with it.

Whole gun:


link

Fill and fire setup:


link

Chamber and barrel support


link


Some specs:

Barrel: 1.2m long 22mm copper
Main valve: 1/2" QEV
Pilot: 1/2" ball valve
Fill valve: 1/4" quick connect, male
Chamber: Small oxygen tank (don't know what volume)

Damage pictures:


link

3mm aluminium sheet, nearly penetrated


link

1/2" MDF, straight through.

Anything else you want to know, just ask.
Hope you like it

Update:

This is the ammunition that I'm using at the moment



The washers still need machined down to fit the barrel.



Nail dart



And another machined projectile.

Update:

Now added breech loading.

Open



That one's blurry and it makes the breech look bent, it's not really.

Closed

[sharpshooter11000]

Images aren't working. Anyone know what I've done wrong?

[Zeus]

Stuffed that one up.

[Zeus]

Well, looks like the urls are too long, the text formatting stuffs them up. Try posting them as links or uploading them to the forum instead of using an image host.

[qwerty]

Make sure you're using the image option when copying and pasting rather than just the url option.

[sharpshooter11000]

There we go, pics working now.

[wyz2285]

God that air tank could be much more useful
You know there are a lot thing can be improved right ?

[sharpshooter11000]

Yeah, I was considering using the air tank for a hybrid, it's rated to 2800psi
Constructive criticism is appreciated.

[wyz2285]

Don´t know what you want, but that tank is to big for the 1/2 qev.
also the ball valve pilot is a overkill for that qev, they can be pilot by a tyre valve you know.

[sharpshooter11000]

The QEV empties it very fast, it makes a sharp crack when you fire it.
I had a quick connect and a ball valve on hand so I just got the reducer, I know it's a bit overkill but it was the cheapest option and it's pretty ergonomic too.

[sharpshooter11000]

Update- ammunition added

[Gun Freak]

Those bolt washer bullets must tumble like hell

I like it

[sharpshooter11000]

I would have thought so too but they seem to fly pretty straight, that aluminium plate was shot at from an angle and if you look at the impact it's a perfect imprint of the nose. The nail darts fly dead straight though, great for distance shots

Thanks, that's a great compliment coming from you

[DEATHSTAR]

I like it.
Looks like a great "classic" shooter.

Personally, I like using wire-nuts (electrical connectors) for the base of ammo for copper stuff.

They can be used alone, or a bolt added, or even epoxied on end of an arrow. (Yellow or Red "Ideal" brand are my favorites)...

Working on a combustion ,that will be a gift for a buddy,
Has brass barrel that fits red wire-nut, chamber is a chrome/stainless steel drink mixer (for bars), it will have an oak stock, metering valve,
and be bolt-action loading (USING the brass mounts to construct the bolt)...
OH, that's what I forgot to mention: perhaps you could make this one bolt-action??? Just add a sleeve to fit over the barrel, and some sort of lock for the bolt (Pull back ,and press i nto a slot?)...

Cools spuddy, Thanks man!! 8)

[sharpshooter11000]

Thanks DEATHSTAR, I was thinking of adding a bolt because I don't have a ramrod long enough for this barrel to use with projectiles with a really tight fit. I actually have some spare ABS lying around about the same ID as the OD of the barrel. Might do that tomorrow.