Locating reliable .277 Fury load data is essential for handloaders looking to safely maximize the performance of this groundbreaking, modern cartridge.
This guide compiles verified .277 Fury reloading data to help you safely develop the perfect load for your AR-10 platform or short-action bolt rifle.
Whether you are loading 130-grain hunting projectiles or heavier 150-grain match bullets, always cross-reference these published figures before charging your cases.
Table of Contents [Click to open]
.277 Fury Load Data
| Bullet | Bullet Weight | Powder | Published Starting Load | Published Maximum Load | Published Velocity | Barrel Length / Firearm | Source |
| Hornady SST | 130 gr | Varget | 41.0 gr | 44.5 gr (64,000 PSI) | 2,800 – 3,000 fps | 16″ / Universal Receiver | Hodgdon |
| Nosler AccuBond | 140 gr | H4895 | 39.5 gr | 42.5 gr | 2,700 – 2,850 fps | 16″ / Universal Receiver | Hodgdon |
| Sierra GameKing | 150 gr | CFE 223 | 42.0 gr | 45.5 gr (64,500 PSI) | 2,650 – 2,800 fps | 16″ / Universal Receiver | Hodgdon |
| Barnes TTSX | 130 gr | Ramshot TAC | 40.5 gr | 44.0 gr | 2,850 – 3,020 fps | 16″ / Universal Receiver | Western Powders |
| Hornady ELD-X | 145 gr | IMR 4064 | 40.0 gr | 43.5 gr | 2,680 – 2,820 fps | 16″ / Universal Receiver | Hodgdon |
.277 Fury Reloading Data
| Bullet | Bullet Weight | Powder | Published Starting Load | Published Maximum Load | Published Velocity | Barrel Length / Firearm | Source |
| Nosler Ballistic Tip | 130 gr | BL-C(2) | 42.0 gr | 45.2 gr (64,200 PSI) | 2,820 – 2,990 fps | 16″ / Universal Receiver | Hodgdon |
| Sierra MatchKing | 135 gr | Varget | 40.5 gr | 44.0 gr | 2,750 – 2,900 fps | 16″ / Universal Receiver | Sierra Bullets |
| Hornady InterLock | 150 gr | Reloder 15 | 40.0 gr | 43.2 gr | 2,600 – 2,780 fps | 16″ / Universal Receiver | Alliant Powder |
| Berger Classic Hunter | 140 gr | H4350 | 44.0 gr | 47.5C gr | 2,650 – 2,830 fps | 16″ / Universal Receiver | Berger Bullets |
| Barnes LRX | 129 gr | CFE 223 | 43.0 gr | 46.5 gr (64,800 PSI) | 2,880 – 3,050 fps | 16″ / Universal Receiver | Hodgdon |
Understanding the .277 Fury Reloading Data
Reading .277 Fury reloading data requires a strict understanding of the cartridge’s unique dual-case design ecosystem. SIG Sauer designed the cartridge to use a hybrid bi-metal case (steel base and brass body) to withstand an astonishing 80,000 PSI maximum pressure for military applications. However, the reloading data provided above, and published by mainstream powder companies, is developed strictly for traditional solid brass cases, which operate at a much lower, conventional pressure limit. You must never attempt to load traditional solid brass to hybrid-case pressure levels.
.277 Fury Bullet Weight Reloading Data
The .277 Fury is optimized for the incredibly efficient 6.8mm (.277 caliber) bullet family, with standard weights typically ranging from 130 grains up to 150 grains. A 135-grain or 140-grain bullet is generally considered the sweet spot for the cartridge, offering the perfect blend of high ballistic coefficient and terminal velocity. Heavier 150-grain projectiles are also highly effective for deep penetration, though they consume valuable powder space inside the relatively short case.
.277 Fury Powder Reloading Data
Powder selection for the .277 Fury relies heavily on medium-burn-rate rifle propellants that can deliver complete burns in short barrels. Extruded powders like Varget, H4895, and IMR 4064 are highly regarded for their temperature stability and precision. Spherical ball powders like CFE 223, BL-C(2), and Ramshot TAC are also excellent choices, as their high load density allows reloaders to safely maximize powder charges in the compact .308-sized case.
.277 Fury Bullet and Powder Combinations
Pairing the right bullet with the appropriate powder is critical for achieving optimal ballistic performance from the .277 Fury. Lightweight 130-grain hunting bullets pair exceptionally well with Varget or Ramshot TAC, delivering blistering speeds from short barrels with consistent accuracy. When loading heavier 145-grain to 150-grain bullets, slightly slower powders like CFE 223 or H4350 help maintain a safe pressure curve while pushing the heavy projectiles to lethal hunting velocities.
.277 Fury Velocity From Published Data
Published velocity figures for the .277 Fury demonstrate its incredible efficiency. Even when utilizing standard solid brass cases loaded to conventional pressures, the cartridge can comfortably push a 130-grain bullet to nearly 3,000 fps from a short 16-inch barrel. This performance rivals the classic .270 Winchester but is achieved in a much shorter, lighter firearm platform, making it a highly capable intermediate-to-long-range cartridge.
.277 Fury Reloading Data by Barrel Length
Unlike legacy cartridges tested in 24-inch laboratory barrels, most published load data for the .277 Fury utilizes a 16-inch test barrel to mimic the SIG MCX Spear and typical AR-10 configurations. If you are shooting the cartridge out of a longer 20-inch or 24-inch bolt-action rifle, you can expect a modest velocity increase of approximately 20 to 30 fps per inch of added barrel length over the published figures.
.277 Fury Energy and Ballistics
The .277 Fury generates devastating kinetic energy by launching high-BC projectiles at magnum-like velocities out of short-barreled rifles. The 6.8mm projectiles feature excellent sectional density, allowing them to resist wind deflection and retain velocity far better than a standard .308 Winchester. The trajectory remains remarkably flat out to 400 yards, providing precision shooters and hunters with a massive ballistic advantage in a short-action package.
.277 Fury Hunting Applications
The .277 Fury is an exceptional hunting cartridge capable of ethically harvesting deer, feral hogs, black bear, and elk at practical distances. When loaded with heavily constructed projectiles like the Barnes TTSX or Nosler AccuBond, it delivers massive hydrostatic shock and deep, bone-breaking penetration. Because the rifle platforms are typically short and maneuverable, it is an ideal choice for brush hunting, stalking, or hunting from tight ground blinds.
Manufacturer Data vs. Independent Testing
Because the .277 Fury is a relatively new and high-pressure cartridge, prioritizing official manufacturer data is absolutely paramount. Independent forum data may experiment with hybrid cases or attempt to chase military 80,000 PSI velocities using solid brass, which will inevitably result in catastrophic firearm failure and severe injury. Always use verified manufacturer load data meant strictly for the exact type of brass you are loading.
.277 Fury Pressure and Safety
The SAAMI Maximum Average Pressure (MAP) for the .277 Fury using the hybrid bi-metal case is an unprecedented 80,000 PSI. However, standard solid brass cases are strictly limited to a conventional MAP of 65,000 PSI. You must meticulously sort your brass and only use data designed for solid brass cases when reloading. Always monitor your fired brass for traditional pressure signs, such as flattened primers or ejector swipes, and start at the published starting loads.
Best Sources for .277 Fury Reloading Data
The most reliable sources for load data are the manufacturers who helped standardize the cartridge and develop its components. The Hodgdon Reloading Data Center is an invaluable resource, providing thoroughly tested digital tables for their extruded and spherical powders using standard solid brass. Additionally, updated printed manuals from Hornady, Nosler, and Sierra offer safe, vetted load recipes specifically tailored to the cartridge’s unique pressure environment.
Frequently Asked Questions
Where can I find .277 Fury reloading data?
You can find safe, pressure-tested .277 Fury reloading data digitally on the Hodgdon Reloading Data Center and in newly published manuals from bullet manufacturers like Hornady and Sierra.
What powders are listed in published .277 Fury data?
Commonly listed powders include medium-burn-rate propellants such as Varget, CFE 223, H4895, IMR 4064, Ramshot TAC, and BL-C(2).
What bullet weights are covered in these tables?
These tables primarily cover standard 6.8mm (.277 caliber) bullet weights, specifically ranging from 130-grain up to 150-grain projectiles.
Does barrel length affect .277 Fury velocity?
Yes, while standard test data often uses a 16-inch barrel, shooting from a longer 20-inch or 24-inch barrel will generally increase velocities by 20 to 30 feet per second per inch.
Can I use standard rifle primers for .277 Fury?
Yes, standard large rifle primers are typically used for solid brass cases, though some handloaders prefer large rifle magnum primers when using spherical powders to ensure consistent ignition.
What is the difference between .277 Fury load data and reloading data?
There is no practical difference; both terms refer to the exact recipes of powder charges, bullet weights, and primers required to safely assemble the cartridge.
Why do published velocity figures differ between sources?
Velocity figures differ because testing facilities use varying barrel lengths, different brass case capacities, distinct environmental conditions, and different primer types during their distinct testing protocols.
Should I use the maximum published load?
You should never start with the maximum published load; always begin with the minimum recommended starting charge and carefully work up while monitoring for signs of overpressure.
Can I use data from one bullet manufacturer for another bullet?
You should only use data specifically designed for the exact bullet you are loading, as variations in bullet bearing surface, jacket thickness, and ogive profile dramatically alter chamber pressures.
Where should I verify .277 Fury load data before reloading?
You should strictly verify all load data against an official, recently published manufacturer manual or a powder company’s official online database before assembling any ammunition.