[SilentScope]

One of my barrels has two large burrs on it's crown, but they're not in the way of a BB's flight path. They do however collect cotton when I swab a cotton swab tip on the crowning indicating a non-smooth crowning. I honestly haven't noticed a difference in performance. Can someone elaborate on why this may be?

This barrel's crown is no where near perfect, but it's still shooting like a champ. So I'm beginning to doubt the importance of a perfect crowning.

 

[zero]

Well if it isn't actually touching any part of the barrel the bb should be touching then naturally no difference in performance should be made. Shouldn't it? :L

Zero

 

[SilentScope]

From what I've read and what I've been told, crowning has to do with causing turbulent airflow to become more stable when the BB exits the barrel. More stable airflow= more stable BB= more accurate shots.

That's why I would have assumed the burrs on my crown would have affected my shots, but the accuracy is the same as ever.

 

[Masterjuggler98]

I wouldn't think you need "perfect" crowning, only near perfect so as to vent the air around the BB as it's leaving the barrel which will stabilize it as it it exiting the barrel. If there are only two burrs, and if they aren't gigantic, it will cause such minuscule turbulence it wouldn't really matter.

Also from what I understand, It has the greatest effect closest to the BB, where the air actually reaches it before the BB leaves entirely. So if the burrs are a bit farther away from the BB, it might just fly past without the turbulence getting a chance to touch the BB. It also depends on the shape of the burrs. The burrs might be letting the air pass next to them without causing any effect. Like when you hold up a deck of cards in the wind, hold them sideways and they are easy to hold on to, but turn them and they will be ripped out of your hand.

Hope I helped.

 

[Cheese Man]

The crowning is not 100% essential to the flight of the bb, cut a nice crown will definitely help a lot.

 

[woogie]

A crown is going to be much better in a powder burner than a bb gun

But as long as the burrs are not touching the bb then you should have no problems.

If it aint broke don't fix it