An apparatus for correcting an aberration in a bullet casing's neck, the apparatus incorporating a support frame; a collet chuck and collet sleeve combination whose collet chuck presents a circumferential array of jaws having longitudinal ends, wherein the collet chuck further has a throat extending longitudinally from the jaws' longitudinal ends; a bullet ogive centering annular land fixedly attached to or formed wholly with the collet chuck, the bullet ogive centering annular land being positioned at an oppositely longitudinal end of the throat; rotatable mounting conical bearings and bushings which attach the collet chuck and collet sleeve combination to the support frame; and a turn wheel connected operatively to the collet chuck and collet sleeve combination.

A precision ammunition cartridge reaming device employs a body die having an interior cavity into which an ammunition cartridge is insertable through a first end. A reaming tool rotationally powered is insertable into the interior cavity through a second end. Rotation of the reaming tool trims the interior of a neck area of the ammunition to form a concentric surface with the exterior thereof. The distal edge of the cartridge may also be trimmed by the reaming tool to form each sequentially inserted cartridge to an equal length.

A precision ammunition cartridge reaming device employs a body die having an interior cavity into which an ammunition cartridge is insertable through a first end. A reaming tool rotationally powered is insertable into the interior cavity through a second end. Rotation of the reaming tool trims the interior of a neck area of the ammunition to form a concentric surface with the exterior thereof. The distal edge of the cartridge may also be trimmed by the reaming tool to form each sequentially inserted cartridge to an equal length.

An ammunition case trimmer, components thereof, and associated methods. The ammunition case trimmer includes a shroud and a cutter. The cutter is supported in the shroud by at least one rotational bearing. The shroud defines a case guide for receiving the case and guiding the case into engagement with a cutting head of the cutter. The shroud is rotatable with respect to the cutter about the axis of rotation. A proximal free end of the cutter is arranged with respect to the shroud to permit reception of the proximal free end in a chuck of a drill.

A precision ammunition cartridge reaming device employs a body die having an interior cavity into which an ammunition cartridge is insertable through a first end. A reaming tool rotationally powered is insertable into the interior cavity through a second end. Rotation of the reaming tool trims the interior of a neck area of the ammunition to form a concentric surface with the exterior thereof. The distal edge of the cartridge may also be trimmed by the reaming tool to form each sequentially inserted cartridge to an equal length.

An ammunition case trimmer, components thereof, and associated methods. The ammunition case trimmer includes a shroud and a cutter. The cutter is supported in the shroud by at least one rotational bearing. The shroud defines a case guide for receiving the case and guiding the case into engagement with a cutting head of the cutter. The shroud is rotatable with respect to the cutter about the axis of rotation. A proximal free end of the cutter is arranged with respect to the shroud to permit reception of the proximal free end in a chuck of a drill.

An apparatus for correcting an aberration in a bullet casing's neck, the apparatus incorporating a support frame; a collet chuck and collet sleeve combination whose collet chuck presents a circumferential array of jaws having longitudinal ends, wherein the collet chuck further has a throat extending longitudinally from the jaws' longitudinal ends; a bullet ogive centering annular land fixedly attached to or formed wholly with the collet chuck, the bullet ogive centering annular land being positioned at an oppositely longitudinal end of the throat; rotatable mounting conical bearings and bushings which attach the collet chuck and collet sleeve combination to the support frame; and a turn wheel connected operatively to the collet chuck and collet sleeve combination.

A method and apparatus for truing a cartridge case with an apparatus including a frame defining a chamber and having a central axis, and a cartridge sleeve defining a cartridge passage with a passage surface for engaging the exterior surface of the body of the case, and a tool extending along the central axis of the frame with a tip end extending into the chamber. The frame may include a tool mandrel portion configured to mount the tool on the frame, and a sleeve mandrel portion configured to mount the cartridge sleeve on the frame. The sleeve mandrel portion may permit the cartridge sleeve and a cartridge case mounted thereon to translate with respect to the frame along the central axis of the frame, the sleeve mandrel portion permitting the cartridge sleeve and a cartridge case mounted thereon to rotate about the central axis with respect to the frame.

The adjustable case preparation tool polymer body has a tungsten carbide blade or blades, an adjustment screw, and a lock nut to secure the adjustment. The adjustment screw bears on a pin, which slides in a tube, which is held by friction fit in the molded or 3D printed body. The screw attaches the tool to a handle, prep center, or rotor. Colors identify calibers, and a tool fits every cartridge in that caliber by interchanging lengths of pins and tubes. The tool can be used with interchangeable spindle sleeves in increments of diameter for a precise fit. The flash hole deburring tool will not enlarge or chamfer a flash hole, and the neck turner will not mar a case mouth. The embodiments work on a case held in a case holder, and cutting stops when the pin through the flash hole touches the solid face of the case holder.

A precision case holder engages the extraction groove of the rim of a straight wall case and established a fixed distance between a base of the case and a precision forward surface of the holder. The case may then be inserted into a case trimmer and the holder establishes a repeatable distance between the base of the case and a cutting tool in the case trimmer. The holder includes a tapered slot with edges which engage the extraction groove and a threaded piston which is tightened against the base of the case. The case slides into the tapered slot until the taper resists further sliding, and the piston is tightened to retain the case.