Originally Posted by
Old School 626
The internal shape of barrels has always been one of my favorite debates. Today's barrels seem to be mere cylendars and if they are multiple peice barrels they are just cylendars of multiple ID's, there is no real contoured shape to the barrel interior. The shape that I've envisioned as working best would be; The back of the barrel to be large to allow the ball to meet the bore. From the large back the ID would constrict down to a control bore, this would be the tightest portion of the barrel intended to let the ball accelerate under a tight directional control. The next section of the barrel would be un-ported but the ID would be slightly increasing to start to end, releasing the control pressure on the ball and letting it almost float freely in the barrel by the end of the section. The final section of the barrel would be ported and have almost no remaining contact with the ball, the sole purpose of this section would be to let the ball transition from the moving air mass in side the barrel into the still air mass in front the barrel so that the ball's shape would not distort causing the ball's flight path to deviate.