Lindcott Armory Rifle · SAAMI
.277 Fury
The US Army's Next Generation Squad Weapon (NGSW) cartridge — the first new US military rifle cartridge since 5.56mm NATO.
- Caliber
- 0.278″ · 7.061 mm
- Introduced
- 2022
- Case
- Rimless
- Primary use
- Military, Hunting, Target
- Status
- Active
- Introduced
- 2022
- Type
- Rifle
- Origin
- United States
- Inventor
- SIG Sauer / US Army
- Manufacturer
- SIG Sauer, Olin/Winchester
- Standard
- SAAMI
- Status
- Active
- Availability
- Limited
- Case capacity
- 77 gr H₂O
- Twist (typical)
- 1:8
- Primer
- Large Rifle
- Case type
- Rimless
- Max pressure
- 80,000 psi
- Eff. range
- 800 yd
- Max range
- 1500 yd
- Recoil
- 20–30 ft·lb
Ballistics
Real trajectory computed from a representative load — SIG Sauer OTM Hybrid FMJ 140 gr, 3,000 fps, BC 0.315 G7 · 100 yd zero.
| Range | Velocity | Energy | Drop (in) | Drop (MOA) |
|---|---|---|---|---|
| 0 yd | 2999 | 2796 | -1.5″ | — |
| 100 yd | 2850 | 2525 | -0.1″ | -0.1 |
| 200 yd | 2705 | 2274 | -3.0″ | -1.4 |
| 300 yd | 2563 | 2042 | -10.6″ | -3.4 |
| 400 yd | 2425 | 1828 | -23.5″ | -5.6 |
| 500 yd | 2291 | 1632 | -42.4″ | -8.1 |
| 600 yd | 2162 | 1453 | -67.8″ | -10.8 |
| 700 yd | 2036 | 1289 | -100.7″ | -13.7 |
| 800 yd | 1914 | 1139 | -142.0″ | -17.0 |
Point-mass G7/G1 drag model, standard atmosphere — within ~2% of reference solvers to 1000 yd; real barrels and conditions vary. Open in Ballistic Compare →
Performance
Buy links open .277 Fury ammunition at Rivertown Munitions.
Dimensionscase measurements · scale drawing · size vs familiar rounds
Case dimensions — the scale drawing at the top of the page is built from these.
SAAMI · verified| Measure | mm | in | ✓ |
|---|---|---|---|
| Bullet ⌀ | 7.06 | 0.278 | ✓ |
| Neck ⌀ | 7.87 | 0.310 | ✓ |
| Shoulder ⌀ | 11.71 | 0.461 | ✓ |
| Shoulder angle | 30° | — | ✓ |
| Base ⌀ | 11.95 | 0.470 | ✓ |
| Rim ⌀ | 11.99 | 0.472 | ✓ |
| Belt ⌀ | n/a | ||
| Rim thickness | 1.37 | 0.054 | ✓ |
| Neck length | 6.43 | 0.253 | ≈ |
| Case length | 51.18 | 2.015 | ✓ |
| Overall length | 71.76 | 2.825 | ✓ |
Size vs familiar rounds
Drawn at true 1:1 — every case is accurate relative to the others. Absolute size depends on your screen's pixel density, so measuring one against a real ruler may be off. .277 Fury is highlighted below.
Factory loads
In production — 22 active loads across 16 brands. Top 15 shown · see all 22 →.
| Brand | Load | Grain | Bullet | FPS | ft·lb | BC |
|---|---|---|---|---|---|---|
| Hornady | Precision Hunter ELD-X | 140 | ELD-X | 3,000 | 2,797 | 0.270 G7 |
| Sig Sauer | Elite Hunter Tipped OTM | 150 | OTM | 3,000 | 2,997 | 0.278 G7 |
| SIG Sauer | OTM Hybrid FMJ | 140 | OTM | 3,000 | 2,797 | 0.315 G7 |
| Hornady | BLACK ELD Match | 135 | ELD-M | 3,000 | 2,697 | 0.277 G7 |
| Federal | Terminal Ascent | 130 | Terminal Ascent | 3,100 | 2,774 | — |
| Browning | Long Range Pro Hunter | 130 | Sierra Tipped SP | 3,050 | 2,685 | — |
| Browning | BXR | 130 | BXR RapidExpansion | 3,050 | 2,685 | — |
| Sig Sauer | Elite Ball FMJ | 140 | FMJ | 3,000 | 2,797 | — |
| Winchester | Ballistic Silvertip | 140 | Ballistic Silvertip | 3,000 | 2,797 | — |
| Nosler | Trophy Grade AccuBond | 140 | AccuBond | 3,000 | 2,797 | — |
| Black Hills | Gold | 135 | Dual Performance | 3,000 | 2,697 | — |
| Black Hills | Match | 135 | Sierra MatchKing | 3,000 | 2,697 | — |
| Sellier & Bellot | SP | 150 | Hollow Point Boat Tail | 2,960 | 2,918 | — |
| Norma | Classic | 150 | Hollow Point Boat Tail | 2,960 | 2,918 | — |
| RWS | Classic | 150 | Hollow Point Boat Tail | 2,960 | 2,918 | — |
Velocities are manufacturer-stated (test-barrel). Discontinued loads dimmed.
Suitable powders
2 reloading powders listed for .277 Fury, fastest to slowest. Cross-reference in the finder →
Reloading costestimate cost per round vs factory
Estimate your cost per round and how it compares to factory. Inputs are yours — nothing is stored.
Cost estimate only — not load data. Charge weight is your input; follow published manuals for safe charges.
Firearms chambered in .277 Fury
12 models in the database chamber .277 Fury. Browse all →
Connected reference
History
Selected by the US Army in April 2022 as part of the NGSW program to replace the M4/M16 and M249 in frontline units. The driving requirement was defeating current and projected enemy body armor at 600+ meters — a capability gap identified after analysis of near-peer adversary protection. The .277 Fury uses a hybrid case with a steel head and brass body to contain the unprecedented 80,000 PSI operating pressure. SIG Sauer's XM5 rifle and XM250 machine gun were selected. Full fielding to combat units began 2023–2025.
FAQs
- What twist rate does .277 Fury use?
- .277 Fury typically uses a 1:8 twist rate.
- What bullet diameter is .277 Fury?
- .277 Fury uses a 0.278″ (7.061 mm) diameter bullet.
- Is .277 Fury still in production?
- .277 Fury is active; typical availability is limited.
- What is .277 Fury used for?
- .277 Fury is primarily used for military, hunting, target.
- What are the best powders for .277 Fury?
- Reloading powders commonly listed for .277 Fury include Reloader 19, Reloader 26.
Sources & provenance
Data & sources. Specs compiled from the Lindcott Armory reference; availability counted from 22 live factory loads; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →