Reliable .280 Remington load data can be found directly from major powder manufacturers and bullet makers, including Hodgdon, Alliant, Sierra, Nosler, Lyman, and Hornady. Published load data normally includes the tested bullet weight, bullet profile, powder type, starting powder charge, maximum powder charge, expected muzzle velocity, and laboratory tested pressure levels. The most common bullet weights represented in published .280 Remington reloading data range from lightweight 120 grain projectiles up to heavy 175 grain hunting bullets. Powder manufacturers publish this data specifically for the standard .280 Remington chamber, and using these precise component combinations is critical because the cartridge operates at a standard maximum limit of 60,000 PSI, requiring careful attention to avoid overpressure.
280 Remington Load Data
| Bullet | Bullet Weight | Powder | Published Starting Load | Published Maximum Load | Published Velocity (Max) | Pressure (Max) | Test Barrel / Firearm | Source |
| Sierra SBT | 140 gr | IMR 4350 | 49.9 gr | 53.9 gr | 2,900 fps | Not published | 24″ Barrel | Sierra Manual |
| Sierra SBT | 140 gr | IMR 4831 | 52.7 gr | 55.9 gr | 2,900 fps | Not published | 24″ Barrel | Sierra Manual |
| Sierra SPT | 140 gr | Hodgdon Varget | 42.1 gr | 47.3 gr | 2,850 fps | Not published | 24″ Barrel | Sierra Manual |
| Sierra SBT | 150 gr | Hodgdon H4350 | 49.3 gr | 54.4 gr | 2,900 fps | Not published | 24″ Barrel | Sierra Manual |
| Sierra SBT | 150 gr | Hodgdon H4831 SC | 52.6 gr | 57.1 gr | 2,800 fps | Not published | 24″ Barrel | Sierra Manual |
| Sierra SBT | 160 gr | IMR 4451 | 46.8 gr | 53.8 gr | 2,800 fps | Not published | 24″ Barrel | Sierra Manual |
| Barnes TTSX BT | 140 gr | IMR 4350 | 48.0 gr | 52.5 gr | 2,850 fps | 60,000 PSI (Est) | 24″ Barrel | Barnes Bullets |
Understanding The .280 Remington Load Data
Reloading manuals provide data that has been strictly pressure tested in controlled laboratory environments using specialized universal receivers.
- Starting load: The safest baseline powder charge recommended by the publisher. It generates enough pressure for consistent ignition while maintaining a wide margin of safety during your initial .280 Remington load development.
- Maximum published load: The highest powder charge tested that remains within the SAAMI pressure limit for the .280 Remington, which is set at 60,000 PSI (or 50,000 CUP).
- Velocity: The expected speed of the projectile as recorded by laboratory chronographs during testing.
- Pressure: The internal chamber pressure measured in PSI (Pounds per Square Inch).
- Bullet weight: The physical mass of the projectile in grains.
- Powder: The specific brand and burn rate of the propellant used.
- Barrel length: The length of the test barrel used by the laboratory. Standard test barrels for the .280 Remington are commonly 24 inches to ensure complete combustion of medium to slow burning powders.
- Test conditions: Laboratories use specifically sized testing equipment, specific brass cases, and specific primers, usually standard Large Rifle primers, to gather their data.
Reputable sources publish varying numerical figures because they utilize different brass brands, distinct primer batches, and testing barrels with slightly different internal tolerances.
.280 Remington Bullet Weight Load Data
The .280 Remington was designed to offer incredible versatility, bridging the gap between the .270 Winchester and the .30-06 Springfield. Reloaders can find published load data for several bullet weights tailored for hunting.
- 120 grain: Typically used for varmint and predator hunting, or for low recoil deer loads. These lightweight bullets achieve high velocities, frequently exceeding 3,000 fps.
- 140 grain: This is the absolute classic bullet weight for the 7mm caliber. Published .280 Remington load data for 140 grain bullets is abundant, with maximum velocities routinely hitting 2,900 fps. This weight offers spectacular terminal performance on deer and antelope.
- 150 grain: An excellent compromise that balances flat trajectories with a higher ballistic coefficient for better wind resistance. Published data routinely shows these bullets breaking the 2,800 to 2,900 fps mark.
- 160 grain to 175 grain: The heaviest practical weights heavily supported by published .280 Remington reloading data. These heavy projectiles are typically loaded with slow burning magnum powders and are favored for deep penetration on elk, moose, and larger game. Maximum velocities commonly range from 2,600 to 2,800 fps.
.280 Remington Powder Load Data
Because of its standard case capacity based on the .30-06 Springfield case, the .280 Remington performs best with medium to slow burning rifle powders.
| Powder | Bullet | Bullet Weight | Published Starting Load | Published Maximum Load | Published Velocity | Source |
| IMR 4350 | Sierra SBT | 140 gr | 49.9 gr | 53.9 gr | 2,900 fps | Sierra Manual |
| Hodgdon H4831 SC | Sierra SBT | 150 gr | 52.6 gr | 57.1 gr | 2,800 fps | Sierra Manual |
| Hodgdon H4350 | Sierra SBT | 150 gr | 49.3 gr | 54.4 gr | 2,900 fps | Sierra Manual |
| IMR 4451 | Sierra SBT | 160 gr | 46.8 gr | 53.8 gr | 2,800 fps | Sierra Manual |
Load data published for a specific 140 grain bullet profile cannot automatically be used for a different 140 grain bullet. Bearing surface differences create distinct friction levels inside the barrel.
.280 Remington Bullet And Powder Combinations
The exact component combination dictates the internal pressure of the cartridge. The .280 Remington case is extremely similar to the .270 Winchester, but features a shoulder moved forward slightly to prevent accidental chambering in a .270 rifle.
Bullet construction matters heavily. A solid copper monolithic bullet, like the Barnes TTSX, is longer than a lead core bullet of the exact same weight. This increased length means the monolithic bullet seats deeper into the brass case, which intrudes on the powder column, reduces internal case capacity, and raises pressure.
Furthermore, semi-automatic rifles like the Remington Model 740 and pump action rifles require slightly reduced powder charges compared to strong bolt action rifles. These actions lack the camming power of a bolt action to extract a sticky, high pressure case. Reloaders must match the published load data to the exact tested components used by the publisher and be mindful of their specific firearm action.
.280 Remington Velocity From Published Data
Velocities provided in published manuals serve as a laboratory baseline rather than a universal guarantee.
- Manufacturer published velocity: Generated in heavily controlled test environments using precise universal receivers with 24 inch barrels.
- Independent chronograph testing: Measured by reloaders using production hunting rifles. It is common for a load rated at 2,900 fps in a manual to yield slightly lower numbers out of a standard hunting rifle due to bore wear or a looser chamber tolerance.
- Ballistic calculator estimates: Software predictions based on bullet weight, powder charge, and barrel length. These are strictly mathematical estimates and do not replace physical chronograph data.
Do not present a software calculated velocity as a verified or measured velocity.
.280 Remington Load Data By Barrel Length
Barrel characteristics radically affect .280 Remington velocity.
- 24 inch barrels: The standard length used in laboratory testing and many bolt action rifles. These barrels extract the maximum possible velocity and ensure a full powder burn for slow powders like H4831.
- 22 inch barrels: The most common length found on lightweight mountain rifles and classic sporters. Shooters utilizing a 22 inch barrel will experience a noticeable velocity loss, often dropping 30 to 60 fps compared to 24 inch laboratory figures.
- 26 inch barrels: Found on custom precision rifles, a 26 inch barrel will yield the highest possible velocities, sometimes exceeding published manual data.
Always identify the test barrel length associated with any published velocity figure.
.280 Remington Energy And Ballistics
When loaded to its potential, the .280 Remington delivers devastating kinetic energy and a remarkably flat trajectory that easily rivals the .270 Winchester.
Using published Sierra data for a 140 grain bullet leaving a 24 inch barrel at 2,900 fps, the cartridge produces roughly 2,614 foot pounds of muzzle energy. A heavier 160 grain bullet launched at 2,800 fps will generate an impressive 2,785 foot pounds of muzzle energy. Due to the high ballistic coefficients of modern 7mm (.284 caliber) bullets, the projectile retains energy exceptionally well, making it a premier cartridge for taking large game at extended distances. Clearly identify the exact bullet and load associated with every ballistic figure.
Standard .280 Remington vs +P Data
It is vital to understand the pressure categories of rifle cartridges. There is no official SAAMI specification for .280 Remington +P load data.
- Standard pressure data: The .280 Remington is rated for a maximum pressure limit of 60,000 PSI (or 50,000 CUP). All published .280 Remington load data operates strictly within this limit to ensure safety in older pump action and semi-automatic rifles.
- The .280 Ackley Improved: Shooters looking for more velocity often turn to the .280 Ackley Improved, a physically different chamber shape that holds more powder and operates at a higher 65,000 PSI limit. Standard .280 Remington data and .280 Ackley Improved data are not interchangeable.
- Safety warning: Reloaders must never attempt to create +P data for the standard .280 Remington by exceeding published maximum charges. Exceeding 60,000 PSI will severely risk destroying the firearm action, rupturing the brass case, and injuring the shooter.
Manufacturer Data vs Independent Testing
When researching .280 Remington reloading data, you must prioritize official manufacturer data over user submitted load reports.
Manufacturer data is rigorously pressure tested using advanced piezoelectric transducers to measure exactly what is happening inside the chamber. Independent testing done by consumers generally only measures velocity via a chronograph. A chronograph cannot detect a dangerous pressure spike. An independent tester might achieve extreme velocities and claim a load recipe is safe simply because their specific rifle did not blow up, but that does not make it a verified or safe standard.
.280 Remington Pressure And Safety
The .280 Remington requires explicit attention to detail during the reloading process due to the variety of actions it is chambered in.
If loading for a semi-automatic or pump action rifle, it is highly recommended to stay at least a grain or two below the absolute maximum published load to ensure reliable extraction. Because the cartridge relies on medium to slow burning powders, reloaders must also never reduce powder charges below the published starting load. Reducing slow burning powders too much can cause a dangerous phenomenon known as Secondary Explosive Effect, which can detonate the firearm. Always begin your .280 Remington load development at the published starting load and work up carefully in small increments.
Best Sources For .280 Remington Load Data
The most reliable sources for verified reloading data include:
- Sierra Manual: Offers extremely thorough data sets across multiple powders and barrel lengths for their exceptionally accurate GameKing and MatchKing projectiles.
- Hodgdon Reloading Data Center: Excellent for online, pressure tested data covering a massive variety of Hodgdon, IMR, and Winchester powders like IMR 4350 and H4831.
- Nosler Reloading Guide: The best source if you are loading their premium hunting bullets like the AccuBond or Partition, offering highly detailed velocity and powder charge charts.
- Barnes Reloading Manual: Provides explicitly tested standard pressure data for their solid copper TTSX and TSX bullets.
Common .280 Remington Load Data Questions
Where can I find .280 Remington load data?
Authoritative data is available in the Sierra Manual, the Nosler Reloading Guide, and the online Hodgdon Reloading Data Center.
What powders are used in published .280 Remington data?
Medium to slow burning rifle powders are standard, including IMR 4350, Hodgdon H4350, IMR 4831, Hodgdon H4831, and IMR 4451.
What bullet weights have .280 Remington load data?
Published data exists primarily for 120, 130, 140, 150, 160, and 175 grain bullets.
What is the best source for .280 Remington reloading data?
The physical manuals from Sierra and Nosler, along with the Hodgdon Reloading Data Center, are the most verified and comprehensive sources.
Why does .280 Remington load data vary between sources?
Laboratories use different test barrel lengths, varying brass capacities, distinct primer types, and distinct bullet bearing surfaces.
What is the difference between standard and .280 Remington +P load data?
There is no officially recognized .280 Remington +P load data. The standard cartridge operates at a maximum SAAMI limit of 60,000 PSI, and attempting to load past this is strictly unsafe.
Does barrel length affect .280 Remington velocity?
Yes. A 24 inch test barrel will yield significantly higher velocities and a more complete powder burn than a 22 inch hunting barrel.
Can the same powder charge be used with a different bullet?
No. Different bullets of the exact same weight have different lengths and seating depths, requiring specific standard pressure load data.
What is the difference between starting and maximum published load data?
The starting load is a safe baseline for load development, while the maximum load is the absolute highest charge tested that remains within the safe 60,000 PSI pressure limit.
Does Hodgdon publish .280 Remington load data?
Yes, the online Hodgdon Reloading Data Center provides extensive pressure tested data utilizing IMR 4350, H4831, and other medium to slow powders.
Does Hornady publish .280 Remington load data?
Yes, Hornady includes this cartridge in their current reloading handbooks, providing exact data for their SST, InterLock, and ELD-X bullet lines.
Does Nosler publish .280 Remington load data?
Yes, Nosler provides extensive load data for the .280 Remington in their manual and online data center, heavily featuring the 140 grain and 160 grain AccuBond.
Does Lyman publish .280 Remington load data?
Yes, the Lyman reloading manual includes comprehensive data sets for the cartridge across various bullet and powder brands.
Final Verdict
For accurate and safe .280 Remington load data, reloaders must pull recipes directly from authoritative sources like Sierra, Hodgdon, Nosler, and Barnes. It is imperative to compare the exact bullet profile, powder type, and component list before beginning your load development. Because the .280 Remington operates at a 60,000 PSI limit and is commonly chambered in semi-automatic rifles that require smooth extraction, reloaders must explicitly avoid any undocumented recipes, ensure exact seating depths, and adhere strictly to published maximum charges. By utilizing verified, laboratory tested load data, reloaders can safely maximize the flat trajectory and massive downrange energy of the classic .280 Remington.