.277 Fury

.277 Fury
TypeCenterfire rifle
Place of originUnited States
Production history
Designed2019
ManufacturerSIG Sauer
Produced2019–present
Specifications
Case typeRimless, bottleneck
Bullet diameter.2780 in (7.06 mm)
Land diameter.2700 in (6.86 mm)
Neck diameter.3100 in (7.87 mm)
Shoulder diameter.4611 in (11.71 mm)
Base diameter.4703 in (11.95 mm)
Rim diameter.4720 in (11.99 mm)
Rim thickness.0540 in (1.37 mm)
Case length2.015 in (51.2 mm)
Overall length2.825 in (71.8 mm)
Rifling twist1 in 7 in. (177.8 mm)
Maximum pressure (SAAMI)80,000 psi (550 MPa)
Ballistic performance
Bullet mass/type Velocity Energy
135 gr (9 g) Hybrid match 3,000 ft/s (910 m/s) 2,694 ft⋅lbf (3,653 J)
135 gr (9 g) Elite ball FMJ 2,750 ft/s (840 m/s) 2,267 ft⋅lbf (3,074 J)
140 gr (9 g) VLD match 2,950 ft/s (900 m/s) 2,706 ft⋅lbf (3,669 J)
Test barrel length: 16 inch (406 mm)
Source(s): [1][2][3]

The .277 Fury or 6.8×51mm Common Cartridge,[4][5] (designated as the .277 SIG Fury by SAAMI[1]) is a centerfire rimless bottlenecked rifle cartridge announced by SIG Sauer in late 2019.[2] 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 (551.6 MPa).[2]

  1. ^ a b "SAAMI .277 SIG FURY cartridge and chamber drawings" (PDF). Sporting Arms and Ammunition Manufacturers' Institute. 23 September 2020. Archived (PDF) from the original on 27 November 2023. Retrieved 25 November 2020.
  2. ^ a b c Langston, Jay (20 December 2019). "277 SIG Fury: SIG Sauer Unveils New Caliber with Hybrid Case Design". Athlon Outdoors. Archived from the original on 3 October 2023. Retrieved 17 March 2020.
  3. ^ ".277 SIG Fury Elite Ball FMJ". SIG Sauer. Archived from the original on 14 December 2023.
  4. ^ Beckstrand, Tom (19 February 2020). "NGSW Update: Push for the 6.8mm Continues". Guns & Ammo. Archived from the original on 24 February 2020.
  5. ^ "Next Generation Squad Weapon Winner: Army Picks SIG SAUER". Athlon Outdoors. 20 April 2022. Archived from the original on 15 June 2023.