Dec 16, 2025

US12498206 - Primer placement with shuttle

An apparatus, system, computer-readable medium, process, or combination thereof to seat a primer in a projectile casing. For example, a primer may be seated according to a depth indexed from a bottom of a projectile casing. A user, programmer, or control can seat, place, adjust, or otherwise determine a depth to seat a primer from a projectile casing bottom. A method to index a depth to seat a primer from a base of a projectile casing.

Assignee: Mannis Operations LLC
Inventors: Jeffrey Citron
Filing date: 2025-08-04

primerprojectilecasingammunition

The patent describes a method for accurately seating a primer in a projectile casing using a specialized primer rod that features a central portion and surrounding prongs. This design allows for precise indexing of the primer’s depth relative to the casing’s base, ensuring consistent and reliable primer placement.

Claim 1

1 . A method of seating a primer in a primer pocket of a projectile casing, the method comprising: providing a primer rod comprising a central portion extending in a longitudinal direction and an outer portion comprising a plurality of prongs surrounding the central portion, wherein the central portion extends farther in the longitudinal direction than the plurality of prongs; providing a projectile casing including a base and a primer pocket with a first depth; aligning a primer with the primer pocket of the projectile casing; inserting the primer into the primer pocket by moving the central portion of the primer rod in the longitudinal direction toward the base of the projectile casing; and stopping movement of the central portion in response to the plurality of prongs at least partially contacting the base of the projectile casing, thereby seating the primer in the primer pocket to a second depth indexed from the base of the projectile casing. providing a primer rod comprising a central portion extending in a longitudinal direction and an outer portion comprising a plurality of prongs surrounding the central portion, wherein the central portion extends farther in the longitudinal direction than the plurality of prongs; providing a projectile casing including a base and a primer pocket with a first depth; aligning a primer with the primer pocket of the projectile casing; inserting the primer into the primer pocket by moving the central portion of the primer rod in the longitudinal direction toward the base of the projectile casing; and stopping movement of the central portion in response to the plurality of prongs at least partially contacting the base of the projectile casing, thereby seating the primer in the primer pocket to a second depth indexed from the base of the projectile casing.

Google Patents

https://patents.google.com/patent/US12498206

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12498206