ALEXANDRIA, Va., June 18 -- United States Patent no. 12,326,327, issued on June 10, was assigned to Rabuffo SA (Monnaz, Switzerland).

"Ammunition cartridge" was invented by Albert Gaide (Monnaz, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "Ammunition cartridge including a rigid casing including a tubular sleeve and a base closing an end of the casing, a projectile mounted at another end of the casing, a propellant charge contained inside the casing, and an ignition device. The projectile includes a solid material body having a volume V1 extending between a tip to a trailing end, wherein the projectile further includes a cavity that extends into the body from the trailing end, a volume V2 of the...