QEV 6mm Sniper

Cannons powered by pneumatic pressure (compressed gas) using a valve or other release.
1nxtmonster
Private 4
Private 4
Posts: 91
Joined: Wed Oct 02, 2013 3:36 pm

Well, sorry for the double post, but i have some updates :)

Here are some pictures of the gun in stock:
P1030609.JPG
P1030613.JPG
And a video of the internals:

[youtube][/youtube]

And a video of the almost finished gun:

[youtube][/youtube]
User avatar
bravootome
Specialist 3
Specialist 3
Romania
Posts: 334
Joined: Mon Oct 14, 2013 11:11 am
Has thanked: 1 time
Been thanked: 2 times

Not very loud, i say . If you use it as an airsoft than sounds good.
come undone
1nxtmonster
Private 4
Private 4
Posts: 91
Joined: Wed Oct 02, 2013 3:36 pm

With the silencer at long range you can barely make out a muffled "pfft" a second or two before you get drilled.
sagthegreat
Specialist 3
Specialist 3
Posts: 343
Joined: Thu Feb 16, 2012 5:23 pm
Location: Leesburg
Contact:

1nxtmonster wrote:With the silencer at long range you can barely make out a muffled "pfft" a second or two before you get drilled.
up the pressure and you can reduce those seconds to milliseconds :P
1nxtmonster
Private 4
Private 4
Posts: 91
Joined: Wed Oct 02, 2013 3:36 pm

I don't even wanna think about how much pressure that would take :)

But on a more serious note, up until now, I've been using an air compressor that only goes to 100 psi. I'm getting c02 reg and tanks in the mail on friday-ish, and the lowest pressure rated part is 150 psi for the qev.....this only means one thing...MOAH POWER! :twisted:

For anyone who has done something like this, how much more power can the gap from 100 to 150 psi give?
sagthegreat
Specialist 3
Specialist 3
Posts: 343
Joined: Thu Feb 16, 2012 5:23 pm
Location: Leesburg
Contact:

1nxtmonster wrote:I don't even wanna think about how much pressure that would take :)

But on a more serious note, up until now, I've been using an air compressor that only goes to 100 psi. I'm getting c02 reg and tanks in the mail on friday-ish, and the lowest pressure rated part is 150 psi for the qev.....this only means one thing...MOAH POWER! :twisted:

For anyone who has done something like this, how much more power can the gap from 100 to 150 psi give?

for a bb, it should give you like 50 fps more...
also let me know how your air rig works out, im thinking about buying a reg like that
User avatar
bravootome
Specialist 3
Specialist 3
Romania
Posts: 334
Joined: Mon Oct 14, 2013 11:11 am
Has thanked: 1 time
Been thanked: 2 times

1nxtmonster wrote:I don't even wanna think about how much pressure that would take :)
For anyone who has done something like this, how much more power can the gap from 100 to 150 psi give?
not much, I dont even shoot when pressure drops to 150 psi. If you got a fridge, take out it's compressor ..it goes up to 500 psi i think. Now you will get decent power. And if you use steel bb, you got yoursel a PCP.
come undone
1nxtmonster
Private 4
Private 4
Posts: 91
Joined: Wed Oct 02, 2013 3:36 pm

bravootome wrote:not much, I dont even shoot when pressure drops to 150 psi. If you got a fridge, take out it's compressor ..it goes up to 500 psi i think. Now you will get decent power. And if you use steel bb, you got yoursel a PCP.
oh... i'm getting 400-500 fps at 100 psi. If I get as much as a jump in performance from say 100 to 150 psi as I do from 70 to 100 psi, then i should be getting "decent power" :)
1nxtmonster
Private 4
Private 4
Posts: 91
Joined: Wed Oct 02, 2013 3:36 pm

**UPDATE**

Air rig arrived, with a little bit of cleaning it works great! I re-arranged the internal washer assembly for a lower pressure range, now i can adjust from 50 to about 300 psi.

R-hop installed, I believe the term for what is occurring would be "over hop" (by about 6 feet at 150 feet)

R-hop un-installed, back to heat shrink tubing. Works like a charm at 150 feet with 120 psi.

Running a higher pressure, this thing is loud! Silencer helps a lot with that.

And finally, would a new topic for the finished thing with a final video be okay?
User avatar
bravootome
Specialist 3
Specialist 3
Romania
Posts: 334
Joined: Mon Oct 14, 2013 11:11 am
Has thanked: 1 time
Been thanked: 2 times

1nxtmonster wrote:
bravootome wrote:not much, I dont even shoot when pressure drops to 150 psi. If you got a fridge, take out it's compressor ..it goes up to 500 psi i think. Now you will get decent power. And if you use steel bb, you got yoursel a PCP.
oh... i'm getting 400-500 fps at 100 psi. If I get as much as a jump in performance from say 100 to 150 psi as I do from 70 to 100 psi, then i should be getting "decent power" :)
with higer power the bb fly different, you wont need a hop up. I goes straight and it also has enough force after 25 m to smash a beer bottle. Also much more important is the barrel.
Last edited by bravootome on Mon Feb 03, 2014 2:03 am, edited 1 time in total.
come undone
Lazyboy
Private 3
Private 3
Posts: 49
Joined: Sun Apr 26, 2009 11:50 pm

Its looking good.
Have you emptied the CO2 tank yet?
I am interested how many shots you would get with the qev and slide valves.
1nxtmonster
Private 4
Private 4
Posts: 91
Joined: Wed Oct 02, 2013 3:36 pm

@ bravootome - my "hop up" right now is very gently rubbing the bb, not really much at all.

@ lazyboy - The tank is about 3/4 empty, and I've done 400 shots.
Post Reply

Create an account or sign in to join the discussion

You need to be a member in order to post a reply

Create an account

Not a member? register to join our community
Members can start their own topics & subscribe to topics
It’s free and only takes a minute

Register

Sign in

  • Similar Topics
    Replies
    Views
    Last post