Flatline Barrel Breaks

Here is an example of the breaking problem:

Today me and some friends went down to the greenbelt to have a little 3v3. On the way down I had a plug in the barrel so there is no possible way dirt could get into the barrel. Once we arrived I thouroughly cleaned the barrel, and then loaded up. The first game I shot roughly 70 shots. Out of these 70 shots I had 3 breaks. When these breaks happened I did not do a detailed cleaning of the barrel, only cleaned out the tip of the barrel with my finger. In between rounds I again thouroughly cleaned my barrel. The second round again I shot about 70 shots and had about 5 breaks, but this time I cleaned my barrel in between each break, because I had some decent cover and places to get down. I continued to clean my gun between rounds, and after the first 2 games condititions only got worse. I will not get into these.

On my gun I have no Response Trigger, or anything like that to increase firepower. I only use this gun for woodsball, and RARELY shoot more than 3 consecutive shots. Whenever I do 3 consecutive shots the third or fourth ball is a guarenteed break, almost every time. I have had once when this hasnt happened. Other than that there seems to be no pattern to the breaks, or any other noticable causes.

Because of the fact most people say ball breaks occur because of the bolt, I began shooting until I had a break. Once I had a break I took the flatline off and inspected where the paint was. The only broken paint was in the flatline barrel itself, and nothing was past the flatline barrel adapter. This was the case 10 out of 10 times. I am asuming that this shows that the paint is breaking in the barrel not the bolt.

I know the barrel is installed correctly because I have taken it to my local proshop, they have verified that I have installed the barrel correctly, and they have even taken it off and re-installed it and had similar results to the paint breaking.

At my local field I have chronoed this gun at about 265.

Now I did some tests with different kinds of paint.

I shot 1/2 hopper full of the RPS Premium with the same results I had earlier. I broke 7 shots, and cleaned the barrel with a squeegie in between each break.

I also shot 1/2 hopper full of the Big Ball paintballs, and broke 6 shots. I cleaned the barrel in between each break.

Then a couple days ago I went to my local field. Their field paint is Zap Tork. This is what finaly send me over the edge. Out of 1/2 a case I broke atleast proably well over 100 shots.

I dont know if this has anything to do with it but when I take my barrel off and look down it I notice there are numerous scratches on the top of my barrel.

If anyone can help me with this problem I would be extremely greatful. Im sick of the barrel breaking but when it does work it is awesome, so I dont want to buy a new barrel.