Occasionally I get questions about handgun terminology such as: “Where is the forcing cone in a revolver? Answering these questions is useful to the readers and often fun. The easiest way to explain the location of the forcing cone is that it is at the extreme rear end of the barrel. The forcing cone is an unrifled section of barrel cut in the shape of a steep funnel. When a bullet leaves the front side of a revolver cylinder, it crosses the barrel cylinder gap. For a brief moment, the bullet is a little wobbly and the forcing cone “forces” it into the rifling. Here, the spiral grooves true up the bullet's path and start the spinning motion that will stabilize the bullet in flight. If it were not for the forcing cone, the bullet would not make the transition from the cylinder to the barrel in a smooth and even manner, which makes it essential to a gun's accuracy.
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