Neck Turner Pilot #311 Features Available in various diameters the Forster Outside Neck Turner Pilot is affordable. For someone who enjoys reloading this pilot guarantees consistent release of the bullet from the case neck. In order for the bullet to release at the point of ignition the neck has to expand. If the side of the case neck is thicker on one side the bullet will release too soon causing misalignment of bullet-to-bore that will affect accuracy. This pilot grinds the steel points which are known as mandrels to 0.002 to 0.0025 inches smaller than the diameter of the bullet for the best performance. Neck Turner Pilot #311 Specifications This longer hardened and ground Pilot of the desired caliber replaces the Pilot used when case trimming Pilots are .0020" to .0025" smaller than bullet diameter Outside Neck Turner Pilots are not interchangeable with the Hand Held Outside Neck Turner Pilots