Abstract: 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.

Abstract: The present disclosure relates to a cartridge case processing device, comprising: a trimmer holder comprising a first section that receives a die body and a second section provided with a through hole that receives a rotatably mounted rod upon which a cutter is arranged; and an adjusting device positioned coaxial to the rod and comprising a hollow cylindrical component provided with a threaded section that extends at least partially into the second section and engages with an internal threaded section of the second section, the hollow cylindrical component being rotatable relative to the trimmer holder, the adjusting device comprising an operating section for manual rotation of the hollow cylindrical component in relation to the trimmer holder.

Abstract: A method and apparatus for sizing ammunition cartridge cases includes a cartridge case trimmer including a cylindrical housing, a mandrel detachably coupled to a longitudinally-oriented opening formed in a first side of the cylindrical housing, the mandrel having a first end including a cutting tool disposed in a slot on the first end and comprising one or more notched cutting surfaces, the mandrel having a second end opposing the first end, the second end protruding from the first side of the cylindrical housing and sized to be received in a chuck, a bearing disposed within the cylindrical housing adjacent to a second side of the cylindrical housing, and an insert comprising a tapered region disposed in an inside diameter of an inner ring of the bearing.

Abstract: The present disclosure relates to a cartridge case processing device to produce and prepare empty cartridge cases (2) comprising a trimmer holder (6) in which a die body (14) is received in the lower section (6.1) and in an upper section (6.2) a bushing (25, 25.1) guided shaft (5) is received on which a cutter (12), an expander die (3) and a decapping pin (15) are coaxially arranged characterized by the integration of an adjusting nut (26) coaxial with the shaft (5) in the upper section (6.2) of the trimmer holder (6), which when turned relative to the shaft (5) leads to the position of the cutter (12) being adjusted in an axial direction.

Abstract: A case preparation and/or trimming assembly. The assembly may include a case shoulder engagement surface and a cutter. The spacing between the case shoulder engagement surface and the cutter is adjustable for changing the amount the cutter trims from a case. A case body engaging member may have an adjustable inner diameter for engaging bodies of cases having different diameters. A kit includes a case trimming assembly and a plurality of interchangeable case bearings (e.g., collets and/or bushings) adapted for engaging cases of different sizes for guiding the cases into proper position with respect to a cutter. The case preparation apparatus includes a support member for supporting a trimming assembly of the apparatus in an upwardly inclined orientation. The case preparation apparatus includes a storage container. Associated methods are also disclosed.

Abstract: An electric case trimmer assembly utilizes an inexpensive case adapter bearing to adapt for each size case. The case trimmer assembly includes an end mill for cutting excess material from the case. The end mill is fixed to a micrometer dial threadedly engaging a barrel. The case adapter bearing is fixed to the barrel. The micrometer dial is rotated to adjust the position of the end mill with respect to the case adapter bearing to precisely adjust the amount of material cut from the case. The case adapter bearing is easily changed to trim different cases.

Abstract: A portion of a work-hardened essentially tubular work piece such as a metallic firearm cartridge case is annealed by contact with solid or granular tooling material which has been heated to a temperature approximately that of the appropriate annealing temperature, thereby reducing the possibility of overheating the work piece, and also thereby permitting the annealing of only that portion of the work piece contacted or in close proximity to the point(s) of contact.

Abstract: A case trimmer and chamfer tool preferably includes a trim die, an end cutter, a crank, an outer chamfer blade, an inner chamfer blade and a height adjustment ring. The end cutter is slidably retained in the trim die. The inner and outer chamfer blades are spring loaded. The end cutter trims a length of the cartridge case. The inner and outer wall of the cartridge case are chamfered by the inner and outer chamfer blades. An adjustment boss extends downward from one end of the crank and a rotating knob is retained on the other end thereof. The end cutter is retained in the adjustment boss. The height adjustment ring is retained on the adjustment boss. A second embodiment is adapted for handling straight cartridge cases instead of rifle cartridge cases. The case trimmer and chamfer tool and a cartridge case are retained in a loading press.

Abstract: An improvement for a cartridge case trimmer which indexes on the shoulder of the case as established by the resizing die and permits a rotating cutter assembly to trim the neck of cases from the inside at a controllable angle. The cutter assembly includes a notched cutter with a cutting edge for length, a cutting edge for inside chamber, and a notched support plate with a guide which also serves as an outside deburring edge. The rotating cutter assembly has a flywheel mounted to it so as to stabilize the cutter while rotating to reduce the tendency to wobble. Set screws fit within the notches of the notched cutter and notched support plate to both hold them in place and to adjust them independently for the desired shape of the trimmed cartridge case neck.

Abstract: Described are devices used to manufacture or assemble firearm ammunition using either new or used metallic cartridge cases. Specifically, these devices combine the necessary means to trim cartridge cases to a predetermined length while removing burrs and chambering both the inside and outside of the case mouth, removing cartridge case material used to crimp primers into the cartridge case by swaging, cutting the cartridge case primer pocket to a predetermined depth, chambering both the inside and outside surface of the cartridge case flash hole, and trimming the wall thickness of the cartridge case neck to a uniform dimension, all with the same device and by a manner that increases convenience and accuracy over any other means currently available.

Abstract: A device for machining a cartridge case that has a neck comprising a circular neck wall, a mouth and a primer pocket. The device includes a gripping assembly, adapted to accept and retain a cartridge case and a neck machining assembly, positioned to engage the cartridge case from a first direction and adapted to machine the neck of the cartridge case. Additionally, a primer pocket machining assembly is positioned to engage the cartridge case from a second direction, opposed to the first direction, thereby permitting simultaneous primer pocket and neck engagement, and adapted to machine the primer pocket.