Two vs. One Piece Barrels

[dark blade]

not trying to hijack the thread, but i want to point out that there is barely any difference between a chop and what people assume to be a barrel break...

a barrel break is not possible, there are no factors inside the barrel that cause the ball to split or break. however, there have been many tests done that prove it is a misfeed.

a chop occurs when the firing cycle starts before the ball is fully in the chamber, a "barrel break" occurs when the ball is being pushed foreward by the bolt and it rubs against a wall of the breech essentially sheering enough away for it to burst when the air rushes at it from the bolt. This is why the paint comes ou int the barrel but not the breech.

The "barrel break" starts in the breech and 95% of the time if you turn your loader speed down it will get rid of ball breaks no matter if they are "barrel breaks" or chops.

that is why i say that barrel breaks do not exist, underboring will not cause a barrel break. It might cause innacuracy due to the ball being forced into a football shaped shot, but they will never actually break in the barrel.

Over boring causes barrel breaks on occasion by the ball just barely hitting and sheering on the side of the barrel. Also, you get less accuracy this way. This is why going with a smaller bore is better, 1 piece vs 2 piece does not affect anything, and having a kit still proves to have the best accuracy and consistancy

[Watcher]

Ok, then how about this one time I was playing with my 98 with a cyclone feed.

I was shooting maybe 8-10 bps at max and the cyclone is rated to 17. Every third shot was a break. There was no paint up in the cyclone or behind the bolt, it was all in the barrel and a bit on the head of the bolt.

They were barrel breaks.

IMHO, a chop is when the bolt itself cigar-cuts a paintball. A barrel break is any number of things that can happen to a ball after it has been loaded.

Chops are specific while barrel breaks are not.

A barrel break can simply mean that the paint was too brittle and the impact of the bolt cracked the shell, which was likely the case as it was cold and I was shooting Draxxus Triumph at the time.

Sure it occured in the chamber, but all the mass is shot into the barrel by the bolt's action and the air blast. Since all the gook and nastiness is in the barrel, it is considered a barrel break.

A chop would be directly related to a feeding problem, a barrel break, although it may, is usually not.
Perhaps there was a burr in the chamber and that popped the ball, perhaps the detent is old and stiff and cracked the shell, perhaps the bore of the barrel has a gap to the chamber and the ball splits on it; these I would all consider barrel breaks.
A chop is when the bolt chops a ball.

[Dend78]

watcher is correct a chop is when the ball doesnt fully seat down in the chamber or if its very brittle paint and turns to soup the instant the bolt hits it. a barrel break is when the ball breaks after leaving the chamber and is in the barrel, which can be caused by underboreing or a number of other things


personally I prefer a kit, and from all the kits ive tried i dont see a whole lot of difference between a short or long control bore, but if you dont want to spend the money on a kit and you use the same paint all the time you will be close enough. .689 seems to be the one i end up with unless its old paint that has seen some climate changes and swelled or shrunk after a long period of time.

[Watcher]

watcher is correct a chop is when the ball doesnt fully seat down in the chamber or if its very brittle paint and turns to soup the instant the bolt hits it. a barrel break is when the ball breaks after leaving the chamber and is in the barrel, which can be caused by underboreing or a number of other things

That's not what I was saying at all.

A chop is when the paintball never enters the chamber entirely and the bolt shears it.

A barrel break would be a paintball that has already entered the chamber and either bounces back and catches the wall of the feed-port as the bolt strikes it, breaks on the bolt head, or breaks for any other number of reasons.

I would consider any and all breaks you run a squeegee through and are done a barrel break. If you have to open the gun up and clean it then it is a chop because a chop gets paint and shell everywhere, a barrel break will have the matter contained (mostly) to the barrel.

Unless the bolt physically cuts the ball in half, it is a barrel break. Chops have to chop, if it breaks on the bolt head for being too brittle it didn't get chopped open, it burst open.

[cockerpunk]

i think some of you need to check out punkworks and my youtube channel.

[dark blade]

i have mr. cocker punk that is where i got the information about the sliding ball against the side of the breech.

and i understand that the ball doesnt always chop, and the ball can be in the breech fully before anything happens.... except, what happens is the ball slides against the breech and sheers off some shell (not enough to make paint come through) but then the pressure from the air charge behind the bolt is released when the ball is in the barrel and bursts it.

If barrel breaks exist, i want to know what inside the barrel would cause the ball to break. If there was something in the finish inside the barrel it would chop every ball and not just 1. If there was no finish problems then it wouldnt chop any.