Flatline Barrel

[ramennoodles]

First of all I would like to make it clear that I am not arguing, I am simply stating the facts as I see them to be true. This is why I started off my statement with "In my opinion".

Secondly, know how to spell what you are spelling before you start spelling;

know what you are argueing about before you start argueing

Thirdly, I am not debating whether or not the barrel put a backspin on the ball. I am merely stating that I do not believe that it can be sustained, and if it couldn't (which is what I believe)then it would render the backspin useless, thus it would fall to the shape of the barrel to determine the tregectory (sp?) of the ball.

Lastly, I would like to make it clear that I'm not trying to argue, I'm (as i have previously stated) merely trying to state my case, and i would appreciate it if you would do the same, don't bash me, especially with poor gramar.

-isaac

[SpecialBlend2786]

whoa, i'm sensing some hostility...

From what i have seen, the barrel does work. But on my friends M98 we had to up the velocity to get the ball out of the barrel. Also, its a pain to squeege the barrel if you get a break, cause you hafta unscrew a screw to get the barrel out. Still, IMO its not worth the money for what it does. Then again, i dont play woods.

[Sparq]

Yes, it becomes almost useless as soon as there's a break - but with the feed neck release on the 98c it's not a problem to run a cable squeegee through it...as long as you can find one long enough.

[jinxed]

If there is so much evidence to show that it doesn't work, how do you explain how so many people have SEEN it work in person? The fact is that it does work, despite what APG's "unbiased study" tells you. Believe your eyes, not what you read.

Having used a backspin bolt for the last 11 years, its pretty easy to say THEY DO WORK. The science supports this, so I don't know what evidence you have against it?

Is it usefull for speedball? no, it breaks to much paint.
Is it usefull for woodsball? no, its less accurate.

Why use it?
As mentioned above, the flat trajectory makes it perfectly suited to urban scenerio games, and similar environments.
SO, thats the only time I use it.

I have had the gun in a vice before, and compared a backspin bolt and a regular bolt side-by-side. The trajectory is very different. A ball with a backspin with fly straight for a while, then drop suddenly as the backspin drops below the threshold level. The threshhold level is the point in which the backspin does not generate magnus or reduce drag.
Plus, at that point, the ball usually starts to curve up/down/left/right, making long-distance shots totally useless.

Summary:
Do they work? Yes. The science supports this.
Are they usefull? No. A non-backspin system is better for most situations.
Is anno and stickers usefull? No.

So if you have money to burn, buy whatever the heck you want. Heck, anno and fancy milling is useless, but people still do it.

If you don't have money to burn, I'd suggest modifying an old stock bolt.

-Nick
-NE Devil Dogs

[Evil Bob]

Ramen, it really does work and extremely well, to such an extent that if you lean the marker to either the right or the left by as little as an inch, the balls will curve in the direction you are leaning. The more you lean, the greater the curve in the flight path, which clearly indicates that backspin is being successfully applied to the ball. If there was no backspin, as you believe, the ball would simply fly in the direction the barrel was pointing in and not curve at all and behave like all other barrels do. Unfortunatley for you, it behaves exactly as it is claimed to behave, which blows your whole belief about how it works completely out of the water. Do yourself a really big favor, and actually shoot one and see how well it works first hand.

The banana shape is what induces the back spin on the ball much like a pitcher does in baseball, he uses his fingers on one side of the ball to apply sufficient rotation so that lift is created as the ball flies toward the home plate. This is precisely what the flatline barrel does.

The flatline barrel is much wider in bore diameter (.70) by design, they only want the ball contacting the barrel on one side to induce spin. If you take a close look at bore of the flatline you will see that there is a coarse hactchwork cut into the surface, not unlike a metal file, on the outer side of the curve, that is there to grab the ball's shell with friction and force the ball to spin.

The flatline is very hard on paint since the surface is not smooth and the ball is being forced by inertia against that rough surface. You can't use brittle tourny paint with it without making a mess, and as stated by another above, it is a mess to clean out since the barrel is not easy to remove. The thicker the shell and heavier the paint fill, the better the flatline performs. My brother shoots RPS Marbs through his, loves it, just brittle enough to break on impact and the shell is strong enough to make it through the barrel without breaking. Once you get paint in the barrel, it behaves just like any other barrel and just lobs paint, another clear indication as to how successful the design is at inducing back spin, remove the friction element and it no longer works.

-Evil Bob

[Aegis]

I bought one just to check it out. Bottom line is, It is a hoot for big rec fields, useless in speedball. If you like to get in a fort and spray, it is truly funny to be able to stand out in the open and hold people off because of the range. That is, until they realize you can't really hit anything in particular and the balls aren't breaking.

Yes, it shoots far and flat. Noticeably so. BUT - accuracy is poor at that range and paint bounces a lot more. I file it under Gimmick - fun sometimes, but only in certain situations.

[Lohman446]

LOL - I play speedball by choice, and woodsball sometimes. There is a big game that is played down south of me that I and another "speedballer" go to. He shoots an impulse, I shoot a mag. The funniest thing you see is when we and a couple other people enter the city, play it as a hard push speedball field and clear it quickly - or duck into the close bunkers on a charge and spray the fort down. Yes the flatline may work, but a) - I charge when Im outdistanced and b) I have yet to be hit before getting within range of my gun that the paint actually broke. As for cover and all... I don't know about that, never seen it an issue.

[ramennoodles]

I may have been wrong about most things, however, the way I see it the science does not support it. This is talking about rifling a paintball (spinning it sideways) as apposed to a flatline effect (spinning it backwards). There is another article about spinning the ball in "Tom's Tech Tips" I will provide a link and will also quote him.

link

So great you say lets do it and get more accuracy!! Well if it was possible it would already have been done. The problem is the liquid fill, when you rotate the shell, the liquid tends to stay where it is. The best example of this is a glass of water with ice floating in it, when you rotate the glass the ice stays in the same place (you have all seen it). So if you can grab the ball hard enough to go from 0 to about 10,000 RPM's in 5 thousands of a second (remember TechTip #1?) Yes the shell is spinning but the fill is not. When the ball leaves the barrel the viscosity of the fill slows the shell down but the fill's rotation is speeding up from the shell too, so you get an almost instant reduction of the RPM's out of the barrel. The balls rotation does not come to a complete stop because the shell does impart some spin to the fill. In order to test this properly we actually developed a gun that spun the barrel, with the ball in it, up to 30,000 RPM's and then shot the ball out.

Now if you have further proof to prove me wrong, please provide it, I don't want to make an *** of myself more than once, but for the time being I still believe I'm correct.