Fury
A brand new 6.8mm cartridge featuring a hybrid case of brass and steel, producing chamber pressure of a whopping 80,000psi, is about to become incredibly popular. It’s the SIG Sauer .277 Fury and it is replacing the 5.56 NATO round as the US military’s main small-arms ammunition.
The 6.8 was selected along with a new SIG Sauer rifle and machine gun in the Next Generation Squad Weapon (NGSW) project, the US Army’s most recent attempt to increase the lethality and hitting power of its military rifle and cartridge.
The official US military rifle and round has undergone many changes over time. The first US military rifle cartridge was the .50-70, introduced in 1866 and used in the singleshot Springfield rifle. It was replaced by the .45-70 in 1873. The rifle and cartridge stayed in service until 1892 when the Krag-Jorgensen bolt-action repeating rifle chambered in the first small-bore, smokeless-powder military cartridge was adopted by the US Army — the .30-Army aka .30-40 Krag.
“Sig Sauer’s 6.8mm cartridge features a hybrid case with a brass body that’s secured to a steel-alloy case head.”
The rimmed .30-40 cartridge was cashiered in favour of the rimless
