Barrel Length and Accuracy

[azheat99]

Just an FYI. March APG published an article on barrel length and accuracy. It was done using pretty good scientific controls. Although, I'm am somewhat biased since I wrote it! Hopefully this will settle some of the debate on barrel length.

[painTech]

they are all the same over 4 inches.

[azheat99]

Not quite, but they all may be equal if they're longer than 8. That first part of the barrel is critical to accuracy.

[hitech]

I don't have the article to read, so, how did you define accurate?

Also, have you read the paintball spin physics thread?

[Miscue]

Originally posted by azheat99
Not quite, but they all may be equal if they're longer than 8. That first part of the barrel is critical to accuracy.

Why?

[RRfireblade]

Re: Barrel Length and Accuracy

Originally posted by azheat99
Hopefully this will settle some of the debate on barrel length.

Then post the article unless this is just a cheesy attempt to boost Magazine sales.

[FreakBaller12]

Q, isn't it because that is the bore size, before muzzle break occours, isn't it the control part of the barrel.
This is why barrel kits have different bor sizes for only the first few inches or so of the barrel.

[SlartyBartFast]

Originally posted by toyotaboy12
This is why barrel kits have different bor sizes for only the first few inches or so of the barrel.

No, they have different bore sizes only for the first part because the first part is interchangeable. THe last part has to be bigger than the biggest insert.

If matching paint is the best thing to do, it would be far more efficient to have 3 or 4 barrels with precision bores for the whole length.

It honestly wouldn't cost that much more than a kit if you just bought 3-4 barrels that were realistically priced and not priced for the gimmick and hype.

[manike]

Originally posted by SlartyBartFast
If matching paint is the best thing to do, it would be far more efficient to have 3 or 4 barrels with precision bores for the whole length.

Or 10 precision barrels at 1 thousandth increments in bore size... just like I bought from Tom ...

Now I just need to find time to put them on the lathe and cut them to fit cocker threads... and maybe with a little nicer outside...

[Dayspring]

Show-off!

Originally posted by manike


Or 10 precision barrels at 1 thousandth increments in bore size... just like I bought from Tom ...

Now I just need to find time to put them on the lathe and cut them to fit cocker threads... and maybe with a little nicer outside...

[GT]

or we can all reslove this issue by agreeing that shooting un-uniform objects is what really throws of accuracy and not the 125 piece of Al.

[Kevmaster]

Originally posted by gtrsi
or we can all reslove this issue by agreeing that shooting un-uniform objects is what really throws of accuracy and not the 125 piece of Al.

by ununiform you mean: sorta-spherical, un-aerodynamic, non-constant-density, non-constant-mass, irregular dimples....

right?

[Miscue]

Originally posted by gtrsi
or we can all reslove this issue by agreeing that shooting un-uniform objects is what really throws of accuracy and not the 125 piece of Al.

Ha, agreed. Everyone would think it was silly if we had "better" tubes to launch eggs with, or sponges. Maybe try to spin the eggs with rifling. A more accurate Nerf ball launcher, perhaps. The problem with these things, including paintballs, is there is NOTHING that you can do to get them to shoot better except for velocity control. Paintballs themselves SUCK for accuracy! But a lot of people do not want to believe this! It is unacceptable!

The ONLY thing a barrel does is act as a pressure chamber that helps accelerate the ball to 300fps. That's it! They all shoot at a straight trajectory when the ball is 1" out the barrel. It's the 100 feet after that, that is the problem. Velocity control is the ONLY issue... and shorter barrels and paint/barrel match happen to improve velocity control.

[shartley]

Originally posted by gtrsi
or we can all reslove this issue by agreeing that shooting un-uniform objects is what really throws of accuracy and not the 125 piece of Al.

shhhhhhhhh

[SlartyBartFast]

Originally posted by Miscue
and shorter barrels and paint/barrel match happen to improve velocity control.

Has anyone actually proved this through testing?

As far as paintball/barrel match, I'd like to see a statistical analysis of a typical batch of paintballs for roundness and sphericity.

Couple that with a study of the effect of the delta between paint size and bore size on velocity consistency. (I guess TK started doing this, at least it would explain all those barrels manike bought.)

Then we'd probably end up proving the statistical stupidity of many of the insert/kit sizes.....