The unique bore geometry has a slightly tapered cross wall that will allow the paintball to build speed in the first few inches of the breach and then reduce contact area and drag seamlessly as the taper progresses. This taper enables the ball to then continue in a "floating state" on its trajectory. No abrupt steps half way up the barrel here. The unidirectional carbon graphite bore contributes greatly to directional stability of the ball. It also allows for quick cleaning of the barrel during play. A broken paintball can be shot through and cleaned from the barrel with just 2 rounds. The use of nanotechnology in the barrel ID makes all this possible.