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 86 users online :: 4 registered, 0 hidden and 82 guests


Most users ever online was 155 on Mon Aug 15, 2016 1:40 am

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 barrel rifling

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
Sponsored 
  • Author
    Message

Unread postAuthor: Hubb » Wed Dec 23, 2009 8:31 am

TheCrackary wrote:Basicly there are two kinds of people. Ones that shoot flatline ans ones that shoot Freaks or freak style barrel(Tuned bore dia. adjustable). when it comes to paintball no one uses rifled barrels and well if you do u wasted your money. For that sized projectile you simply need more weight for range and accuracy, and thats all there is. And from what ive witnessed in my many years of paintball with the weight and regulated velocity allowed at fields A well matched barrel only needs to be 6-10 inches on avg.
How about the Hammerhead barrel. The bore is adjustable, but it has rifling down the length, and some swear by them. Personally, I've never used them, as I actually know how to use my Flatline.

As far as 75 - 100 feet goes, it does seem like a short distance when a paintball is compared to other types of guns, but that is usually the norm for them.
  • 0

User avatar
Hubb
Major General
Major General
 
Posts: 2390
Joined: Mon May 28, 2007 8:39 am
Location: South Georgia
Reputation: 2

Unread postAuthor: twizi » Wed Dec 23, 2009 7:51 pm

look at tiberous first strike round

i have shot these they have great accurcy
  • 0

dont play with airsofter with 1000$ gun and play with a 5 dollar pair of glasses
User avatar
twizi
Colonel
Colonel
 
Posts: 511
Joined: Thu Nov 27, 2008 9:04 pm
Location: up yours
Reputation: 0

Unread postAuthor: turner » Wed Dec 23, 2009 9:03 pm

and at only 8 for $6! haha are you even going to play paintball with this rifle? you could just add more wieght then.
  • 0


turner
Staff Sergeant
Staff Sergeant
 
Posts: 113
Joined: Fri Aug 07, 2009 11:48 pm
Reputation: 0

Unread postAuthor: RYANSCHLESINGER » Thu Dec 24, 2009 6:52 pm

there is no point of rifling a paintball barrel. the projectile is close enough to a perfect cylinder the ball will spin automatically but their is a barrel made by tippmann which will improve distance because it puts a backspin on the paintball. Heres a link

http://www.tippmann.com/usa/product_gui ... aspx?cid=9

Message from pimp: Read the damned thread!

Hubb wrote:How about the Hammerhead barrel. The bore is adjustable, but it has rifling down the length, and some swear by them. Personally, I've never used them, as I actually know how to use my Flatline.
  • 0


RYANSCHLESINGER
Private
Private
 
Posts: 9
Joined: Thu Dec 24, 2009 5:48 pm
Reputation: 0

Unread postAuthor: inonickname » Fri Dec 25, 2009 12:11 am

the projectile is close enough to a perfect cylinder


Once you get out of primary school we tend to use the correct names for things. How about a "sphere"? However, paintballs are soft and filled with a liquid. To think that they remain as spheres and don't distort in any way under acceleration and drag shows less understanding of physics than your other thread.

backspin on the paintball

Message from pimp: Read the damned thread!
  • 0

PimpAssasinG wrote:no im strong but you are a fat gay mother sucker that gets raped by black man for fun
User avatar
inonickname
Lieutenant General
Lieutenant General
 
Posts: 2606
Joined: Sun Dec 07, 2008 3:27 am
Reputation: 0

Unread postAuthor: RYANSCHLESINGER » Fri Dec 25, 2009 12:32 am

i did read the thread. sorry I got my words all jumbled up. "once you get out of primary school" you might learn that the reason you thread a barrel is to make the projectile spin, cutting down on resistance. the backspin cuts down on air resisitance even more. this makes the projectiles fly more accuarate and faster. if anybody's going to try to intagonize me or try to be disespectful for one know what your talking about and to you can say it to my face. I don't tolerate disrespect if i don't deserve it. If i don't talk junk neither should anybody else
  • 0


RYANSCHLESINGER
Private
Private
 
Posts: 9
Joined: Thu Dec 24, 2009 5:48 pm
Reputation: 0

Unread postAuthor: inonickname » Fri Dec 25, 2009 1:19 am

Need a shovel to continue digging your hole?

thread a barrel

But of course you mean rifling?

the backspin cuts down on air resisitance even more

Sorry, but no. Read. Backspin helps create "lift" on the ball- good to improve range on projectiles such as airsoft rounds. (A 'hopup' unit).

you might learn that the reason you thread a barrel is to make the projectile spin, cutting down on resistance

Completely wrong. In fact, slight eccentricities in flight path caused by rotation could increase drag. Read.
This spin serves to gyroscopically stabilize the projectile, improving its aerodynamic stability and accuracy.


if anybody's going to try to intagonize me or try to be disespectful for one know what your talking about and to you can say it to my face.

It would seem that you don't know what you're talking about.

If i don't talk junk neither should anybody else

Simply correcting you. Not knowing what you are talking about at all could be interpreted as 'talking junk' I assume.
  • 0

PimpAssasinG wrote:no im strong but you are a fat gay mother sucker that gets raped by black man for fun
User avatar
inonickname
Lieutenant General
Lieutenant General
 
Posts: 2606
Joined: Sun Dec 07, 2008 3:27 am
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: artillerycreations » Fri Dec 25, 2009 1:28 am

RYANSCHLESINGER wrote:i did read the thread. sorry I got my words all jumbled up. "once you get out of primary school" you might learn that the reason you thread a barrel is to make the projectile spin, cutting down on resistance. the backspin cuts down on air resisitance even more. this makes the projectiles fly more accuarate and faster. if anybody's going to try to intagonize me or try to be disespectful for one know what your talking about and to you can say it to my face. I don't tolerate disrespect if i don't deserve it. If i don't talk junk neither should anybody else

This is a good way to ally many people against you. Im not being rude, im just warning you of whats going to happen. This forum isnt for proving the other person wrong at all costs. Its about bouncing cool ideas off of each other, talking about something you did that worked or didnt work, and keeping each other from creating useless junk from an idea that wont work. You need not be so defensive. When you say something stupid or mess up by calling a paintball a "cylinder" you are gonna get called on it. Just say my bad and go on about your business and learn from it. Nobody knows everything about everything. No need to get so defensive as it isnt productive.
  • 0


artillerycreations
Specialist
Specialist
 
Posts: 46
Joined: Wed Dec 23, 2009 2:38 pm
Reputation: 0

Unread postAuthor: sgort87 » Fri Dec 25, 2009 1:51 am

Ok, Ryan, for your own safety, I am revoking your license to invent laws of physics. From now on, you're going to have to back up your thoughts with some solid sources... and solid grammar.

I'll give you a B- for your effort lately. You've shown enthusiasm and interest, but I think you can do much better in the courtesy department. Take a step back before entering a post and ask yourself if it makes enough sense to publish to a public medium.

I'm not here to piss you off man. I'm just here to stop you from making the entire forum tackle you.
  • 0

<a href="http://www.launchpotatoes.com"><img src="http://www.launchpotatoes.com/images/uploads/logo2.PNG"></a>
http://www.LaunchPotatoes.com
User avatar
sgort87
Donating Member
Donating Member
 
Posts: 1038
Joined: Sun Sep 18, 2005 10:32 am
Location: Lockport, Illinois
Country: United States (us)
Reputation: 1

Unread postAuthor: Ragnarok » Fri Dec 25, 2009 1:41 pm

RYANSCHLESINGER wrote:The reason you thread a barrel is to make the projectile spin...

Aside for fact you didn't use the word "rifling", yeah - more or less.

...cutting down on resistance.

But this part is off. Rifling does not improve drag - much of the time, the rifling marks on the projectile actually worsen drag marginally. (And, as inonickname says, eccentricities caused by the spin also cause increases in drag).

There are two reasons to rifle a projectile.
Firstly, it imparts gyroscopic stability and stops the projectile just tumbling in the air.
Secondly, it "averages" out any aerodynamic imbalances in the projectile - things that on an unspinning projectile would cause the projectile to arc off in whatever direction. The high rate of spin means that these aerodynamic faults don't act in only one direction, and instead get spread out in ALL directions, stopping the projectile ending up wherever.

the backspin cuts down on air resisitance even more.

Again, no. Backspin does nothing to benefit drag.

Similarly to rifling, it imparts gyroscopic stability.
However, in place of "the aerodynamic averaging" what it does is produce lift via the Magnus effect, counteracting the forces of gravity.

But only to a limited extent - as drag slows the projectile, the airspeed over the projectile decreases, reducing the lift produced. Also, the projectile's angular velocity (revolutions per second) will drop, also losing lift.
Eventually, gravity will win.

this makes the projectiles fly more accuarate and faster.

More accurate - yes, both rifling and backspin offer accuracy improvements over an unstablised projectile.

Faster - No. Drag isn't reduced. The truth is that the energy expended in spinning the projectile reduces muzzle velocity.

However, backspin does offer a flatter trajectory - and with that, it can be used to shoot further (even disregarding the improvements on accuracy making longer ranges more effective.)

if anybody's going to try to intagonize me or try to be disespectful for one know what your talking about and to you can say it to my face.

Not trying to either antagonise you, and I don't see correcting someone as disrespectful.

Either way:
1) I do know what I'm talking about. Not the best on the forum, but definitely up there.
2) Sorry, "say it to my face" doesn't sound "hard" here, it sounds like you want us to come round your house to teach you science.

If i don't talk junk neither should anybody else

I'm sorry, but you are very much talking rubbish here.

An important thing to learn about this forum is that we do know our science pretty well. If for whatever reason, our science and yours don't match, it's more likely to be you in error.

If you do wish to question something that we've posted, feel free - but don't act like you're unquestionably right, because people who've acted like anyone who doesn't agree with them is an idiot inevitably look pretty silly when they get proven wrong.
  • 0

Does that thing kinda look like a big cat to you?
User avatar
Ragnarok
Chief of Staff
Chief of Staff
 
Posts: 5339
Joined: Tue Dec 19, 2006 8:23 am
Location: The UK
Reputation: 8

Unread postAuthor: VH_man » Sun Dec 27, 2009 9:45 pm

If my Airsoft Experience may be of assistance, the best way to get this to work (and probably the only way to get it to work) is to use the same method as the rifled airsoft barrels.

These can be found here

Basically, instead of the BB catching the lands and spinning, the barrel creates a vortex around the BB. this stops the BB from bouncing back and forth along the insides of the barrel, reducing unwanted spins and therefore increasing accuracy.

I think this is what you should aim for in a rifled paintball barrel (I wouldn't be surprised if the commercial ones work in the same way)
  • 0

User avatar
VH_man
Major General
Major General
 
Posts: 1827
Joined: Sat Dec 09, 2006 6:00 pm
Location: New Hampshire
Reputation: 1

Previous

Return to Pneumatic Cannon Discussion

Who is online

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

Reputation System ©'