.277 Fury
The .277 Fury or 6.8×51mm Common Cartridge (designated as the .277 SIG Fury by SAAMI) is a centerfire, rimless, bottlenecked rifle cartridge announced by SIG Sauer in late 2019. Its hybrid, three-piece cartridge case has a steel case-head and brass body connected by an aluminum locking washer to support the high chamber pressure of 80,000 psi (550 MPa).