GunClaims
Weekly firearms and ammunition patent grants.
Dec 23, 2025

US12504262 - Lead-free ammunition projectile

A bullet (ammunition projectile) comprising a branched condensation polymer and a filler, wherein the filler is present in an amount from about 10% to 65% by volume of the branched condensation polymer and filler is described. The bullet may be made by heating a mixture comprised of a branched condensation polymer and a filler comprised of a first and second filler having differing densities and differing particle size distribution to form a molten mixture and injecting the molten mixture into a mold to form the ammunition projectile allowing for the tailoring of the characteristics of the bullet for differing applications.

ammunitionlead-freeprojectile

The patent describes a lead-free ammunition projectile made from a branched condensation polymer combined with a filler, which can be adjusted in volume to optimize performance for various applications. The manufacturing process involves heating the polymer and filler mixture to create a molten state that is then injected into a mold to form the bullet.

Claim 1

1 . An ammunition projectile comprising: a branched condensation polymer, and a filler, wherein the filler is present in an amount from about 10% to 65% by volume of the branched condensation polymer and filler, wherein the branched condensation polymer has a melt flow rate of 10 g/10 min to 100 g/10 min (2.16 kg @ 235° C.). a branched condensation polymer, and a filler, wherein the filler is present in an amount from about 10% to 65% by volume of the branched condensation polymer and filler, wherein the branched condensation polymer has a melt flow rate of 10 g/10 min to 100 g/10 min (2.16 kg @ 235° C.).

Google Patents

https://patents.google.com/patent/US12504262

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12504262