The uses of porting
Printed From: Tippmann Paintball
Category: Paintball Equipment
Forum Name: Upgrades and Customizing
Forum Description: Trick it out!
URL: http://www.tippmannsports.com/forum/wwf77a/forum_posts.asp?TID=103233
Printed Date: 31 January 2026 at 1:14pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: The uses of porting
Posted By: Blue Hopper
Subject: The uses of porting
Date Posted: 22 June 2004 at 1:45pm
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Ive been told alot of things about porting and if anyone understands about how they work and can help me out please leave a reply. Does porting in the barrel have any more puposes than to cut back on the sound when the gun fire, do they make you have to use more air, is it bad to have them halfway down the barrel like on the stock 98 barrels. If any one can help thanks. |
Replies:
Posted By: Paintball Panda
Date Posted: 22 June 2004 at 1:56pm
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Porting also Help your internals if your Barrel was cloged. Porting can also give Extra Accuracy Ex: Teardrop, it has that Special porting which gives it better accuracy. ------------- 
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Posted By: Blue Hopper
Date Posted: 22 June 2004 at 5:37pm
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Thanks, and what sort of Barrell would you suggest buying i dont realy care how loud it is though |
Posted By: procarbinefreak
Date Posted: 22 June 2004 at 6:03pm
| porting really has nothing to do with accuracy. the spiral porting is a marketing gimmick and really just affects the amount of noise. barrels with lots of porting will be quieter than a barrel with no porting. |
Posted By: metal_monster87
Date Posted: 22 June 2004 at 7:33pm
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spiral porting decreases turbulance in the barrel making it more accurate. also more porting results in less noise. ------------- http://punisher87.mypicgallery.com/mpg/Route.asp |
Posted By: hashi2008
Date Posted: 22 June 2004 at 8:16pm
| Yeah, I heard that the ball sorta "floats" and the porting allows the air to escape reducing wobbling in the barrel. |
Posted By: You Wont See Me
Date Posted: 22 June 2004 at 9:41pm
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Spiral porting does NOTHING for accuracy. ------------- A-5 E-Grip JCS Dual Trigger DOP X-CORE 8 stage x-chamber Lapco Bigshot 14" Beadblasted Optional setup: R/T Dead on Blade trigger |
Posted By: SnakeEyes
Date Posted: 22 June 2004 at 11:03pm
Thats funny, if you ever take a fluid dynamics class you will learn that turbulent air layers actually reduce air resistance on an object and allow it to travel straighter and faster. Same as how a fast ball has proper back spin to trip into the turbulent air region to allow it to travel faster than a curve ball or slider. As for porting, it does several things. It allows excess air pressure to escape or enter the barrel. Blow back pressure can be alleviated with porting. The way air escapes also effects the sound propogation from the end of the barrel. Lastly porting helps clear broken paint residue from the barrel. As for porting adding accuracy, thats just bs. Sideways spin on a paintball would do nothing more than cause it to hook or slice. ------------- Which falls faster, a lead ball or your IQ after reading some of these posts? http://www.pennstatepaintball.com" rel="nofollow - PSU Paintball |
metal_monster87 wrote:Posted By: Stormy Knight
Date Posted: 25 June 2004 at 3:38am
If that was true, then all ported barrels would have spiral porting.
------------- A-5 Armson DOT Sight Armson Raised Sightrail DOP Bullet Drop DOP RVA DOP X-Core DOP Vertical Adapter E-Grip(APE) Flatline Barrel HPA JCS Duel Trigger Lightening Bolt QEPH Vortex Mod |
Posted By: LordJovian
Date Posted: 25 June 2004 at 7:37am
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The holes make it quieter, and make it look pretty. The "spiral" effect wouldn't make the ball spin, it'd make the air behind the ball spin. Much like the tip of an airplane wing- it causes the air to form a tornado-like effect and produce drag on the plane. Fortunately, there is no spiral effect, which would probably make the ball shoot horribly. ------------- A-5 E-grip Chipley Custom Carbon Graphite 16" Evil Adapter(Spyder) 32 Deg New '03 XChamber Remote Line Gun Sling Sniper f/x Stock LPK 68/4500 HPA R-5 CP Reg JCS Duel Trigger |
Posted By: TheHoff
Date Posted: 25 June 2004 at 8:23am
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If paintballs where more precise then there would be a demand for rifled barrels. but they are too unpredictable to have a 1:12 twist or something similar. Remember real guns use rifling and that puts a spin on the bullet. ------------- blame it on the irish.... |
Posted By: killernoodle
Date Posted: 25 June 2004 at 8:58am
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You dont need to put a spin on a paintball the same way you have to put
a spin on a bullet. Bullets are long and oddly shaped and would
tumble in flight if not gyroscopically stabilized by rifling, reducing
accuracy. Round shot, on the other hand, does not need the rifling as
tumbling in flight for a paintball is less an aerodynamic problem than
it is in a bullet. In order to achieve any aerodynamic benefit
from spinning the ball, it must be an extreme backspin and this can
really only be achieved with a flatline. Porting does nothing but
silence.
------------- I make all my own mods. |
Posted By: TheHoff
Date Posted: 25 June 2004 at 10:51am
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Hence I said REAL guns use rifling and you can't with a paintball because of inconsistancies among other things. ------------- blame it on the irish.... |
Posted By: Blue Hopper
Date Posted: 25 June 2004 at 12:06pm
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A round projectile such as a paintball somehow having the spin effect like on bullets i dought would decrease accuracy because this effect had been used even when we fired round projectiles in muskets and cannons. Though rifling in muskets did not come somewhere until late 1800's. 1880's i think. So if this effect was somehow put on a paintball it should increase accuracy. Though it would seem to me that the flatlines spin would still function better. |
Posted By: hashi2008
Date Posted: 25 June 2004 at 12:23pm
| Think of it this way. A bullent is shaped like a football. A paintball is shaped like a baseball. How do you throw a football? With a spiral. How do you throw a baseball? With a backspin. |