Accuracy Problem

[PBMossMan]

I have had my Impulse (vision) for about 5 months now and it has been fine for awhile. But in the last few months I have been seeing my paintballs FLYING all over the place: they shoot straight and then take a SARP dive or turn. Very Unpredictable!!
I'v got a a Dye Boomstick and the problem is still very bad.
I also have messed with the Dwell and the Reg; to try to fix it, but the problem still persists.
So... If someone could give me their advice I would Greatly appreciate it.

[JJcoola]

Do you have a good paint to barrel match? Are you using crap paint, or good paint?

[VeNoM]

ya, a good paint to barrel match is very important. when you put one of the paintballs in your barrel does it take alot of effort to try to blow out? does it just roll out? it should not roll out and you should be able to blow it out easily. also is your gun maintained well? oiled and cleaned? if all is good and you are still having problems, its beyond me, hehe.