I picked this barrel up at Gander Mt. for about 35 bucks and this thing is awesome. I went out test shooting yesterday and here's what happened...
Shooting at a roughly 2x2' square piece of metal and from 110 feet away, I hit the target 10 times with 10 paintballs!! These were also from a standing position!!!!!!
This barrel is also very durable. I've had it for about 4 months and I play every other weekend and I don't have a single scratch on it. And I play woodsball, so I'm crawling around in the mud with it.
If you want an awesome barrel for a small amount of cash, get the SP Progressive 06.