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 57 users online :: 4 registered, 0 hidden and 53 guests


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

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

The Team
Administrators
Global Moderators
global_moderators.png CS

Paintball Rifle

This area is for the discussion of BB or airsoft sub machine guns, and or other small arms such as pellets.
Sponsored 
  • Author
    Message

Paintball Rifle

Unread postAuthor: ShowNoMercy » Wed May 23, 2007 10:24 am

Hey I am planning on building a smaller cannon for paintballs, and I want to know your thoughts on it. I am planning on using a 1 inch non modded sprinkler valve and that is the only definate so far in the eqaution. I would like it to be used to play paintball with so I need to it to shoot .68 cal paintballs at around 350 fps. So my question is what has anyone found to be a good ratio to attain these speeds and also what is the best pipe adn size to use for accuracy? Thanks
  • 0

Jesus saves, no need to pray
The gates of pearl have turned to gold
It seems you've lost your way
User avatar
ShowNoMercy
Brigadier General
Brigadier General
 
Posts: 1094
Joined: Mon Mar 19, 2007 8:08 am
Location: Jersey Bitches!
Reputation: 0

Unread postAuthor: Flying_Salt » Wed May 23, 2007 10:40 am

Generally, homemade paintball guns are too strong to shoot at people. You may want to try a ball valve or something. That or a small chamber with low pressure.
  • 0

sgort87 wrote:I hereby present Flying_Salt with The one and only <a href="http://www.geocities.com/sgort87/ghetto">Ghetto Award!</a>
User avatar
Flying_Salt
Brigadier General
Brigadier General
 
Posts: 779
Joined: Mon Oct 09, 2006 4:57 pm
Location: Texas
Reputation: 0

Unread postAuthor: Fnord » Wed May 23, 2007 10:53 am

Putting a ball valve or one of those garden hose valves between the chamber and sprinkler would allow you to restrict airflow enough to get the results you want. If you are using c02 though I would ditch the ball valve and set the regulator to a lower pressure.

I'm sure playing around with the ggdt will give some ball park numbers though.
  • 0

Image
User avatar
Fnord
Major General
Major General
 
Posts: 2244
Joined: Tue Feb 13, 2007 9:20 pm
Location: Pripyat
Reputation: 7

Unread postAuthor: ShowNoMercy » Wed May 23, 2007 11:29 am

Btw what is the best material for a barrel? I am looking for some accuracy here so a close fit would be the best. And does anyone have like a 4 foot section they would wanna sell?
  • 0

Jesus saves, no need to pray
The gates of pearl have turned to gold
It seems you've lost your way
User avatar
ShowNoMercy
Brigadier General
Brigadier General
 
Posts: 1094
Joined: Mon Mar 19, 2007 8:08 am
Location: Jersey Bitches!
Reputation: 0

Unread postAuthor: iknowmy3tables » Wed May 23, 2007 11:35 am

the discusion of shooting people is not allowed on this forum, but... maybe if you just hapend to want your paintball gun to shoot at around 350fps we can help

best pipe sizes for paintballs are sch80 3/4" pvc, or 3/4" cpvc
use ggdt for the calculation
  • 0


iknowmy3tables
Major General
Major General
 
Posts: 1558
Joined: Fri Dec 15, 2006 3:57 pm
Location: maryland
Country: United States (us)
Reputation: 0

Unread postAuthor: Fnord » Wed May 23, 2007 11:36 am

Well, If you dont mind pvc, 3/4" sch40 works very well, but Im guessing an aluminum barrel designed for a paintball gun is going to work better.
Not sure if they even make 4' PB barrels though.

edit @ Iknowmy3tables: I dont think pcguy will mind as long as he is trying to make a safe gun. Shooting people is what they are designed for after all (well, at least thats what they are designed for nowadays. I dont think that was always the case).
  • 0

Last edited by Fnord on Wed May 23, 2007 11:40 am, edited 1 time in total.
Image
User avatar
Fnord
Major General
Major General
 
Posts: 2244
Joined: Tue Feb 13, 2007 9:20 pm
Location: Pripyat
Reputation: 7

Unread postAuthor: ShowNoMercy » Wed May 23, 2007 11:37 am

Ok well I want to shoot my tree outside my house :wink: and I have been trying to put numbers into GGDT but it goes crazy and crashes. So I am not sure what that means.
  • 0

Jesus saves, no need to pray
The gates of pearl have turned to gold
It seems you've lost your way
User avatar
ShowNoMercy
Brigadier General
Brigadier General
 
Posts: 1094
Joined: Mon Mar 19, 2007 8:08 am
Location: Jersey Bitches!
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: cash68 » Wed May 23, 2007 11:43 am

3/4 CPVC is perfect. I built a rifle to use in paintball, you can see it here:

http://www.spudfiles.com/forums/aequita ... t7999.html
  • 0


cash68
Sergeant Major
Sergeant Major
 
Posts: 179
Joined: Sun Apr 29, 2007 7:12 pm
Reputation: 0

Unread postAuthor: ShowNoMercy » Wed May 23, 2007 11:49 am

I have looked at your rifle before and I am kinda basing mine off yours. What kind of accuracy are you getting though? No Bs please, the gun is nice and impressive as is. I just wanna know if I should just get a regular paintball barrel or the 3/4 cpvc.
  • 0

Jesus saves, no need to pray
The gates of pearl have turned to gold
It seems you've lost your way
User avatar
ShowNoMercy
Brigadier General
Brigadier General
 
Posts: 1094
Joined: Mon Mar 19, 2007 8:08 am
Location: Jersey Bitches!
Reputation: 0

Unread postAuthor: Fnord » Wed May 23, 2007 11:52 am

I got about 320 fps from the ggdt with a 30" barrel and a 1"x8" chamber, at only 50 psi.
This seems like a very reasonable and versatile gun to build.

whats a paintball weigh, like 4 grams?
  • 0

Image
User avatar
Fnord
Major General
Major General
 
Posts: 2244
Joined: Tue Feb 13, 2007 9:20 pm
Location: Pripyat
Reputation: 7

Unread postAuthor: ShowNoMercy » Wed May 23, 2007 11:54 am

On average 3.2 grams

Merged:

Then why do people use huge barrels? If its not rifled wont it just take away from performance?
  • 0

Jesus saves, no need to pray
The gates of pearl have turned to gold
It seems you've lost your way
User avatar
ShowNoMercy
Brigadier General
Brigadier General
 
Posts: 1094
Joined: Mon Mar 19, 2007 8:08 am
Location: Jersey Bitches!
Reputation: 0

Unread postAuthor: Fnord » Wed May 23, 2007 12:25 pm

A 30 inch barrel is a good blend of power and versatility. If you start going longer it will be more cumbersome, and shorter it will probably lose accuracy. If you dont mind a bulky gun, then by all means try a 4 foot barrel. 30" was also about the ideal number for the chamber size.

Also, a rifled barrel will probably give you a noticable increase in accuracy. Thats why I suggested looking for a professionaly made aluminum barrel.
  • 0

Image
User avatar
Fnord
Major General
Major General
 
Posts: 2244
Joined: Tue Feb 13, 2007 9:20 pm
Location: Pripyat
Reputation: 7

Unread postAuthor: ShowNoMercy » Wed May 23, 2007 1:21 pm

Thats what the plan is now, but I am not sure where I would get a rifled barrel at a decent price so I guess I will stick with a long paintball barrel or a cpvc one. And I think I may try a breech design for some added practicality shooting that tree out back.
  • 0

Jesus saves, no need to pray
The gates of pearl have turned to gold
It seems you've lost your way
User avatar
ShowNoMercy
Brigadier General
Brigadier General
 
Posts: 1094
Joined: Mon Mar 19, 2007 8:08 am
Location: Jersey Bitches!
Reputation: 0

Unread postAuthor: iknowmy3tables » Wed May 23, 2007 2:26 pm

longer barrels usually add power and accuracy unless the barrel is ridiculously long or the chamber is ridiculously short.

you should consider a gravity fed bolt action
  • 0


iknowmy3tables
Major General
Major General
 
Posts: 1558
Joined: Fri Dec 15, 2006 3:57 pm
Location: maryland
Country: United States (us)
Reputation: 0

Unread postAuthor: MrCrowley » Wed May 23, 2007 2:26 pm

What threads do proper paintball barrels take? To slow the FPS down you could get one of those.
  • 0

User avatar
MrCrowley
Moderator
Moderator
 
Posts: 10207
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Country: New Zealand (nz)
Reputation: 4

Next

Return to BB/Airsoft/Pellet Gun Discussion

Who is online

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

Reputation System ©'