Login    Register
User Information
Username:
Password:
We are a free and open
community, all are welcome.
Click here to Register
Sponsored
Who is online

In total there are 64 users online :: 6 registered, 0 hidden and 58 guests


Most users ever online was 218 on Wed Dec 07, 2016 6:58 pm

Registered users: Bing [Bot], Exabot [Bot], Google [Bot], Google Adsense [Bot], MSNbot Media, Yahoo [Bot] based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

Sniper

Built a pneumatic cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
Sponsored 
  • Author
    Message

Sniper

Unread postAuthor: farcticox1 » Sat Apr 27, 2013 3:48 pm

Just put this together

Image

Image

Removable/adjustable stock not finished and no sights yet. Going to get some telescopics.

Image

Single shot with reload, ammo tube holds 20 1/4" steel balls.

Image

Image

Image
  • 0

Last edited by farcticox1 on Wed May 15, 2013 12:25 pm, edited 1 time in total.

farcticox1
Master Sergeant
Master Sergeant
 
Posts: 151
Joined: Sun Mar 31, 2013 12:37 pm
Reputation: 9

Unread postAuthor: wyz2285 » Sat Apr 27, 2013 4:52 pm

The ammo tube looks weird but nice reload system.
If I were you I'd weld the stock holder on the other side of that plate, so the stock and barrel would be linear.
  • 0

CpTn_lAw wrote::D "yay, me wanna make big multishot pnoob with 1000 psi foot pump compressor using diamond as main material. Do you think wet bread make good sealant? " :D
User avatar
wyz2285
Major General
Major General
 
Posts: 2244
Joined: Sat Mar 06, 2010 7:50 am
Location: Porto, Portugal
Country: Portugal (pt)
Reputation: 12

Unread postAuthor: sagthegreat » Sat Apr 27, 2013 7:46 pm

Is this just a pressure washer handle and a barrel? What kind of damage are you getting out of this?
  • 0


sagthegreat
Captain
Captain
 
Posts: 343
Joined: Thu Feb 16, 2012 5:23 pm
Location: Leesburg
Country: United States (us)
Reputation: 1

Unread postAuthor: farcticox1 » Sat Apr 27, 2013 8:31 pm

Yes the plan was to have them inline, but this way I can slide it all the way in, and the offset doesn't really hurt too much as I am right handed, so it kicks the main body of the gun to the left.

It is a pressure washer gun with 1/4 ID stainless tube, that's 3 I've used now to make air guns, no idea of damage yet as I need to make a good target setup, do get sparks if I hit the concrete floor though.
  • 0


farcticox1
Master Sergeant
Master Sergeant
 
Posts: 151
Joined: Sun Mar 31, 2013 12:37 pm
Reputation: 9

Unread postAuthor: sagthegreat » Sun Apr 28, 2013 12:11 pm

Airsoft bb's?
What pressure are you using?
  • 0


sagthegreat
Captain
Captain
 
Posts: 343
Joined: Thu Feb 16, 2012 5:23 pm
Location: Leesburg
Country: United States (us)
Reputation: 1

Unread postAuthor: farcticox1 » Sun Apr 28, 2013 12:40 pm

Steel 1/4" balls, but it would fire airsoft as well. Just using 100psi from a small compressor, that seems plenty for what I want. I put airsoft bb's in my full auto and it was quite impressive, I am making a hopper for it that will hold a couple of hundred.
  • 0


farcticox1
Master Sergeant
Master Sergeant
 
Posts: 151
Joined: Sun Mar 31, 2013 12:37 pm
Reputation: 9

Updates and modifications

Unread postAuthor: farcticox1 » Wed May 15, 2013 12:14 pm

After some modifications here is the latest version of sniper, I can reload with left or right hand, no sights yet as they haven't arrived. I have done a short video as well, was about 12feet from the target and did 4 seperate groups on the target. Bipod worked out quite good, legs fold forward or backwards. Ammo tube holds about 50 balls, I have various lengths of these.

Image

Image

Image

Image

Image

Image


Damage close up


Image

Video, 2nd group had ball go through the same hole, nearly on the 3rd group as well. Will be interesting to compare when I get the sights on.

  • 0

Last edited by jrrdw on Sat Oct 19, 2013 10:21 am, edited 1 time in total.
Reason: Fixed video.

farcticox1
Master Sergeant
Master Sergeant
 
Posts: 151
Joined: Sun Mar 31, 2013 12:37 pm
Reputation: 9

Updates and modifications

Sponsored

Sponsor
 


Unread postAuthor: sagthegreat » Wed May 15, 2013 6:11 pm

Can you do me a favor? Shoot at point blank at a coke can and the chart below tells you the fps based on where you shot and the penetration you achieved.

ONE SIDE 290-310 fps
BOTH SIDES 350-370fps
BOTTOM (CENTRAL) 420 to 450fps
BOTTOM (EDGE) 450 to 480fps
TOP (EDGE) 480 to 510fps
TOP (CENTRAL) 520 to 540fps
  • 0


sagthegreat
Captain
Captain
 
Posts: 343
Joined: Thu Feb 16, 2012 5:23 pm
Location: Leesburg
Country: United States (us)
Reputation: 1

Unread postAuthor: farcticox1 » Wed May 15, 2013 6:50 pm

That's interesting, just a standard aluminum can I assume, I have a stack of those ready for my Tin Can Alley.

Do these figures depend on the weight of the ammo? I am using steel, Airsoft bb's may have a high fps but I would guess less penetration due to less mass. :?
  • 0


farcticox1
Master Sergeant
Master Sergeant
 
Posts: 151
Joined: Sun Mar 31, 2013 12:37 pm
Reputation: 9

Unread postAuthor: sagthegreat » Wed May 15, 2013 8:46 pm

Ya use an .2 gram air soft Bb, and make sure the can won't move around when shootimg, tape it to the ground or hold it in our hand
  • 0


sagthegreat
Captain
Captain
 
Posts: 343
Joined: Thu Feb 16, 2012 5:23 pm
Location: Leesburg
Country: United States (us)
Reputation: 1

Unread postAuthor: Zeus » Wed May 15, 2013 8:49 pm

It has to be a .20g. Just an Al beer/soft drink can will do.

Since I've got a chrono, I really should set up a standard for .25s and various other targets.
  • 0

/sarcasm, /hyperbole
User avatar
Zeus
Major General
Major General
 
Posts: 1422
Joined: Tue Oct 27, 2009 7:34 pm
Location: 'Straya, C*nt
Reputation: 2

Unread postAuthor: Kilash » Wed May 15, 2013 9:58 pm

Your muzzle velocity is around 280 m/s with 6mm airsoft rounds.
  • 0

User avatar
Kilash
Corporal
Corporal
 
Posts: 70
Joined: Thu Jan 21, 2010 12:20 am
Reputation: 0

Unread postAuthor: jackssmirkingrevenge » Thu May 16, 2013 12:20 am

Odd choice of target but nicely done. I love the reloading mechanism!

I would really suggest moving to a QEV/3 way valve to ensure more consistent performance if "sniping" is your goal.

Otherwise staying with the pressure washer unit, you should think about hooking it up to a paintball bottle. Running it on 8 times more pressure will be a revelation in terms of power ;)
  • 0

User avatar
jackssmirkingrevenge
Donating Member
Donating Member
 
Posts: 24225
Joined: Thu Mar 15, 2007 11:28 pm
Country: Holy See (Vatican City State) (va)
Reputation: 66

Unread postAuthor: farcticox1 » Thu May 16, 2013 3:30 am

I have .12g airsoft but I may be able to get hold of a few .2g.

Anywho it's just a bit of fun for me, something to pass the time on my long night shifts at work.
  • 0


farcticox1
Master Sergeant
Master Sergeant
 
Posts: 151
Joined: Sun Mar 31, 2013 12:37 pm
Reputation: 9

Unread postAuthor: django » Sat May 18, 2013 8:37 am

Wow!! theres some really nice Guns on here lately :D this thing is Boss and the reloader is definitely unique!. if im understanding the reloader you have used a T Piece and at the bottom you have a steel rod that blocks off the next bb from rolling into the T Fitting?.

But how have you managed to get that rod to be airtight in the T Fitting?
  • 0


django
Lieutenant Colonel
Lieutenant Colonel
 
Posts: 410
Joined: Sat Feb 12, 2005 11:33 pm
Location: Australia
Reputation: 0

Next

Return to Pneumatic Cannon Database

Who is online

Registered users: Bing [Bot], Exabot [Bot], Google [Bot], Google Adsense [Bot], MSNbot Media, Yahoo [Bot]

Reputation System ©'