The Forster Hand Outside Neck Pilot is designed for people who do reloading and want a guarantee that the bullet will be released in a consistent manner from the case neck. At ignition, it is imperative for the case neck to expand, allowing the release of the bullet. If one side of the neck is thicker than another, the bullet will release prematurely, causing a misalignment of bullet-to-bore. When this occurs, accuracy is dramatically impacted. Mandrels, which are the steel points, are ground 0.002 to 0.025 inches smaller than the diameter of the bullet, providing excellent performance.