Aug 25, 2026

US12716683 - Muzzleloader power cell with primer

Muzzleloader systems including a pre-packaged propellant charge with a primer and receptacle. The muzzleloader system may include a propellant containment vessel separate from the primer and the projectile and that doesn't contact with the projectile until assembly. The muzzleloader may be rear loading, with a constriction portion forward of the breech chamber. The propellant containment vessel may include a body portion having a forward opening, with a propellant charge disposed therein and a cap portion that is crimp rolled within the mouth of the vessel to seal the forward opening. The closed end of the propellant containment vessel may define a primer receptacle configured to receive the primer. The receptacle may define a depth that is less than the primer height so that, when inserted into the receptacle, the primer extends rearwardly beyond the containment vessel. The muzzleloader system may be configured to fire only specifically configured propellant containment vessels.

Inventors: Bryan P. Peterson, Drew L. Goodlin, Adam J. Moser
Filing date: 2025-02-03

muzzleloaderammunitionfirearm

The patent describes a muzzleloader system featuring a pre-packaged propellant charge that includes a primer receptacle, allowing for the use of specifically configured propellant containment vessels. This design ensures the correct quantity and type of propellant is utilized, enhancing safety and efficiency in muzzleloading rifles.

Claim 1

1 . A method assuring utilization of correct propellant quantity and type in a muzzleloading rifle, the method comprising: providing a muzzleloader rifle having a breech block face about a firing pin hole with a firing pin, a barrel with a chamber and a barrel bore extending forward, the barrel bore extending to a muzzle of the muzzleloader rifle, the breech block face having a recess extending rearwardly for receiving a primer end, the firing pin configured to not extend forwardly past the breech block face; and providing a plurality of prefilled propellant containment vessels with premeasured propellant sealed therein, the plurality of prefilled propellant containment vessels being configured for loading into the chamber and each propellant containment vessel including a rearward end with a flange with a rearward-facing flange face, each flange face defining a respective primer receptacle with a depth, primers not in the respective primer receptacle. providing a muzzleloader rifle having a breech block face about a firing pin hole with a firing pin, a barrel with a chamber and a barrel bore extending forward, the barrel bore extending to a muzzle of the muzzleloader rifle, the breech block face having a recess extending rearwardly for receiving a primer end, the firing pin configured to not extend forwardly past the breech block face; and providing a plurality of prefilled propellant containment vessels with premeasured propellant sealed therein, the plurality of prefilled propellant containment vessels being configured for loading into the chamber and each propellant containment vessel including a rearward end with a flange with a rearward-facing flange face, each flange face defining a respective primer receptacle with a depth, primers not in the respective primer receptacle.

Google Patents

https://patents.google.com/patent/US12716683

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12716683