Die

Patents tagged Die

Sep 15, 2026

US12736317 - Device and method for reloading ammunition

A reloading die comprising a die housing, a cap element, and a guide element. The die housing has an inner surface forming a housing chamber. The cap element is coupled to a first end of the die housing, and the guide element is coupled to a second end of the die housing for mounting at least in part in the housing chamber. The guide element has a main body having a first end portion and an opposed second end portion and an inner surface defining a guide chamber. The inner surface of the guide element has disposed at a position axially spaced from a first end portion and from a second end portion a radially inwardly extending guide flange element. The guide flange element has a guide flange opening formed therein, and is configured and positioned to move axially within the housing chamber.

Dec 23, 2025

US12504263 - Seating die

A seating die assembly is provided that includes a die body having a longitudinal axis, a first end surface and a second end surface opposing the first end surface, the first and second end surfaces separated from each other along the longitudinal axis, an elongated cavity disposed along the longitudinal axis, a cartridge receiver defining an opening on the first end surface connected to the elongated cavity, a top punch for seating a bullet in a casing disposed at least partially within the elongated cavity and translatable within the elongated cavity along the longitudinal axis, and a biasing element disposed within the elongated cavity for urging the top punch toward the cartridge receiver to seat the bullet in the casing.

Aug 26, 2025

US12398988 - Bullet seating die

A bullet seating die for use with an ammunition press to seat a bullet in a case includes a die housing having an ammunition press mount for mounting the bullet seating die on the ammunition press. The die housing defines a bullet receiving space having an open end and a side window in communication with the bullet receiving space. The side window sized and shaped to permit the bullet to be inserted therethrough to position the bullet in the bullet receiving space. A seating stem is supported by the die housing. The seating stem is arranged to engage the bullet to press the bullet into the case when the ammunition press is operated. A spring biases the seating stem away from the open end of the bullet receiving space to permit the bullet to be inserted through the side window and into the bullet receiving space.

May 27, 2025

US12313386 - Modifying a projectile casing

An apparatus, system, computer-readable medium, process, die, or combination thereof to modify a projectile casing. For example, a die and mandrel can be used to shape, resize, or otherwise modify a projectile casing. A die can include different portions or sections, where the portions or sections are designed to shape or size different portions of the projectile casing such as the neck, shoulder, or body of a projectile casing. A method to insert a projectile casing into a die, where the die already includes a mandrel, and then extracting the mandrel while the die and projectile casing are held in place.