Aug 26, 2025

US12398989 - Ammunition reloading device

An ammunition cartridge case reloading die has a die body defined by an interior bore and a bore opening, and a retention cap attachable to the die body. A cartridge case tool is fixed to the retention cap in axial alignment with the interior bore, and a tip of the cartridge case tool is at a proscribed distance relative to the bore opening. A centering shuttle is in sliding engagement in the interior bore of the die body, and defines a shuttle bore through which the cartridge case tool passes, and a reverse taper opening receptive to the cartridge case. The die may has a biasing element disposed within the interior bore between the centering shuttle and the retention cap, with movement of the centering shuttle within interior bore of the die body being dampened by the biasing element.

Assignee: Dillon Precision Products, Inc.
Inventors: William H. Aerni
Filing date: 2023-08-09

ammunitionreloadingdevice

The patent describes an ammunition cartridge case reloading die featuring a die body with an interior bore, a cartridge case tool aligned with the bore, and a centering shuttle that slides within the die body. The design includes a biasing element to dampen the movement of the centering shuttle, enhancing the reloading process.

Claim 1

An ammunition cartridge case reloading die comprising: a die body defined by an interior bore and a bore opening; a cartridge case tool in axial alignment with the interior bore, with the cartridge case tool extending at least partially within the interior bore; and a centering shuttle sliding in the die body, the centering shuttle defining a shuttle bore through which the cartridge case tool passes and a tapered inner face at a tip end of the centering shuttle, the centering shuttle having an extended position with a tip of the cartridge case tool positionally abbreviated to a base of the tapered inner face. a die body defined by an interior bore and a bore opening; a cartridge case tool in axial alignment with the interior bore, with the cartridge case tool extending at least partially within the interior bore; and a centering shuttle sliding in the die body, the centering shuttle defining a shuttle bore through which the cartridge case tool passes and a tapered inner face at a tip end of the centering shuttle, the centering shuttle having an extended position with a tip of the cartridge case tool positionally abbreviated to a base of the tapered inner face.

Google Patents

https://patents.google.com/patent/US12398989

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12398989