This barrel is about as accurate as any other barrel on the market. Where it REALLY shines is when it comes to shooting through breaks. Out of every barrel I've ever shot, my Stiffi Switch kit and one piece Stffi shoot through breaks better than the rest. Usually it takes 2-3 shots. When taking the barrel off the gun to clean for the next game you can hardly see any paint on the inside of the barrel.
Totally worth the money. The ability to shoot through breaks can be a lifesaver.