Jun 24, 2025

US12339107 - Metallic, non-leaded projectile for muzzle-loading firearms and methods of making and using the same

A projectile for muzzle-loading firearms is made completely from a non-lead metal or alloy. It includes a pair of grooves to incorporate O-rings around a circular cylinder. A threaded well may be bored into the forward facing of the cylinder to facilitate insertion and/or removal of the projectile from the barrel via a cooperating ramrod. The projectile is then wrapped in a cloth patch to cover the sidewalls and bottom facing of the cylinder. A method of forming a plurality of the projectiles from standardized bar stock is also contemplated.

Inventors: Peter D. Rebar
Filing date: 2022-11-11

muzzleloadingprojectilenon-leadfirearm

This patent describes a non-lead metallic projectile designed for muzzle-loading firearms, featuring a circular cylinder with retention flanges and O-rings for secure fitting. The projectile can be manufactured from standardized bar stock and is intended to be wrapped in a cloth patch for use.

Claim 1

A projectile for muzzle-loaded firearms, the projectile comprising: a circular cylinder consisting of a single non-lead-containing metal or alloy, wherein a leading retention flange is defined by a first annular groove formed at one end of the circular cylinder and a trailing retention flange is defined by a second annular groove formed at an opposing end of the circular cylinder and wherein the trailing retention flange has a smaller diameter in comparison to a diameter of the leading retention flange; and a pair of non-metallic O-rings, each positioned and configured to fill the first and second annular grooves. a circular cylinder consisting of a single non-lead-containing metal or alloy, wherein a leading retention flange is defined by a first annular groove formed at one end of the circular cylinder and a trailing retention flange is defined by a second annular groove formed at an opposing end of the circular cylinder and wherein the trailing retention flange has a smaller diameter in comparison to a diameter of the leading retention flange; and a pair of non-metallic O-rings, each positioned and configured to fill the first and second annular grooves.

Google Patents

https://patents.google.com/patent/US12339107

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12339107