Load Specifications
Load data in caliber .280 Rem. with .284 | 175gr | Speer Magnum Tip Soft Point bullet and 80 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Accurate High Country and Norma MRP.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2700 | <<locked>> | 82% | 52,881 psi | 90% | 2533 fps | 98.9% |
| Accurate 3100 | <<locked>> | 98% | 50,444 psi | 86% | 2579 fps | 99.6% |
| Accurate 4064 | <<locked>> | 82% | 52,257 psi | 89% | 2520 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 52,533 psi | 89% | 2618 fps | 100% |
| Accurate High Country | <<locked>> | 96% | 51,416 psi | 88% | 2710 fps | 97.5% |
| Accurate MAGPRO | <<locked>> | 98% | 52,170 psi | 89% | 2707 fps | 96.3% |
| ADI AR 2208 | <<locked>> | 84% | 52,228 psi | 89% | 2546 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 50,270 psi | 86% | 2612 fps | 97.9% |
| ADI AR 2213 | <<locked>> | 98% | 51,314 psi | 87% | 2657 fps | 96.9% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 50,401 psi | 86% | 2612 fps | 98% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 49,980 psi | 85% | 2526 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 50,053 psi | 85% | 2621 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 51,010 psi | 87% | 2644 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 52,982 psi | 90% | 2654 fps | 98.5% |
| Alliant Reloder-22 | <<locked>> | 98% | 50,212 psi | 85% | 2657 fps | 98.2% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 50,720 psi | 86% | 2644 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 44,135 psi | 75% | 2582 fps | 99.5% |
| Alliant Reloder-26 | <<locked>> | 96% | 50,067 psi | 85% | 2713 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 49,197 psi | 84% | 2638 fps | 97.9% |
| Bofors RP3 | <<locked>> | 82% | 50,343 psi | 86% | 2536 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 50,212 psi | 85% | 2657 fps | 98.2% |
| Bofors RP7 | <<locked>> | 88% | 53,127 psi | 90% | 2572 fps | 99.1% |
| Hodgdon H380 | <<locked>> | 82% | 50,705 psi | 86% | 2552 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 88% | 51,329 psi | 87% | 2618 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 86% | 51,184 psi | 87% | 2579 fps | 98.4% |
| Hodgdon H4831 | <<locked>> | 96% | 51,358 psi | 87% | 2605 fps | 96.3% |
| Hodgdon H4831 SC | <<locked>> | 96% | 50,140 psi | 85% | 2585 fps | 96% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 50,430 psi | 86% | 2559 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 43,178 psi | 74% | 2612 fps | 97.3% |
| Hodgdon Superformance | <<locked>> | 88% | 50,807 psi | 86% | 2648 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,608 psi | 62% | 1601 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 51,938 psi | 88% | 2533 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 50,923 psi | 87% | 2559 fps | 98.8% |
| IMR 4451 Enduron | <<locked>> | 86% | 51,706 psi | 88% | 2552 fps | 99.2% |
| IMR 4831 | <<locked>> | 92% | 53,084 psi | 90% | 2615 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 50,009 psi | 85% | 2549 fps | 96.2% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 52,069 psi | 89% | 2684 fps | 97.3% |
| Lovex S062 | <<locked>> | 82% | 52,170 psi | 89% | 2526 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 51,793 psi | 88% | 2552 fps | 99.8% |
| Lovex S070 | <<locked>> | 90% | 52,794 psi | 90% | 2589 fps | 99.5% |
| Lovex S071ᴾ | <<locked>> | 100% | 44,976 psi | 77% | 2493 fps | 99% |
| Norma 203B | <<locked>> | 82% | 52,562 psi | 89% | 2575 fps | 100% |
| Norma 204 | <<locked>> | 90% | 51,213 psi | 87% | 2605 fps | 98% |
| Norma MRP | <<locked>> | 98% | 52,982 psi | 90% | 2730 fps | 99.5% |
| Norma URP | <<locked>> | 90% | 51,561 psi | 88% | 2608 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 52,388 psi | 89% | 2700 fps | 97.7% |
| Ramshot Hunter | <<locked>> | 90% | 50,314 psi | 86% | 2612 fps | 99.6% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 46,543 psi | 79% | 2582 fps | 98.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,144 psi | 63% | 1637 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 50,560 psi | 86% | 2536 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 50,459 psi | 86% | 2635 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 52,286 psi | 89% | 2644 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 50,850 psi | 87% | 2667 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 42,960 psi | 73% | 2605 fps | 98.2% |
| Rottweil R 903 | <<locked>> | 84% | 50,517 psi | 86% | 2536 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 51,822 psi | 88% | 2582 fps | 97.2% |
| Rottweil R 905 | <<locked>> | 96% | 52,257 psi | 89% | 2641 fps | 98.5% |
| Rottweil R 907 | <<locked>> | 88% | 53,127 psi | 90% | 2572 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 88% | 51,793 psi | 88% | 2552 fps | 99.8% |
| Shooters World Precision | <<locked>> | 82% | 52,170 psi | 89% | 2526 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 52,794 psi | 90% | 2589 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 51,793 psi | 88% | 2589 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 51,735 psi | 88% | 2434 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 51,010 psi | 87% | 2503 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 51,793 psi | 88% | 2638 fps | 98.4% |
| Somchem S355 | <<locked>> | 84% | 50,676 psi | 86% | 2533 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 50,053 psi | 85% | 2530 fps | 95.9% |
| Somchem S365 | <<locked>> | 92% | 50,763 psi | 86% | 2612 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 52,634 psi | 90% | 2615 fps | 99% |
| Vihtavuori N150 | <<locked>> | 86% | 51,677 psi | 88% | 2510 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 50,096 psi | 85% | 2552 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 51,996 psi | 89% | 2595 fps | 98.7% |
| Vihtavuori N540 | <<locked>> | 82% | 52,649 psi | 90% | 2513 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 52,547 psi | 89% | 2605 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 53,142 psi | 90% | 2664 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 50,024 psi | 85% | 2667 fps | 96.4% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 52,794 psi | 90% | 2572 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 51,605 psi | 88% | 2625 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 45,745 psi | 78% | 2703 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 52,649 psi | 90% | 2612 fps | 98.3% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2700 | <<locked>> | 80% | 49,429 psi | 84% | 2480 fps | 98.4% |
| Accurate 3100 | <<locked>> | 84% | 31,473 psi | 54% | 2228 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 49,095 psi | 84% | 2474 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 37,463 psi | 64% | 2365 fps | 98.9% |
| Accurate High Country | 53.2 gr | 92% | 44,788 psi | 76% | 2595 fps | 95.9% |
| Accurate MAGPRO | <<locked>> | 96% | 48,530 psi | 83% | 2648 fps | 95.3% |
| ADI AR 2208 | <<locked>> | 80% | 46,340 psi | 79% | 2457 fps | 100% |
| ADI AR 2209 | <<locked>> | 88% | 41,437 psi | 71% | 2454 fps | 95.8% |
| ADI AR 2213 | <<locked>> | 94% | 44,817 psi | 76% | 2543 fps | 95.2% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 38,856 psi | 66% | 2402 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,920 psi | 80% | 2480 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 36,463 psi | 62% | 2372 fps | 98.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 41,394 psi | 70% | 2490 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 40,930 psi | 70% | 2448 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 90% | 38,580 psi | 66% | 2441 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,760 psi | 46% | 2156 fps | 97.1% |
| Alliant Reloder-25 | <<locked>> | 88% | 30,356 psi | 52% | 2267 fps | 95.2% |
| Alliant Reloder-26 | 47.6 gr | 80% | 28,413 psi | 48% | 2254 fps | 95.3% |
| Bofors RP15 | <<locked>> | 94% | 40,553 psi | 69% | 2480 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 47,210 psi | 80% | 2490 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 38,580 psi | 66% | 2441 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 41,582 psi | 71% | 2379 fps | 97% |
| Hodgdon H380 | <<locked>> | 80% | 47,601 psi | 81% | 2503 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 80% | 39,479 psi | 67% | 2411 fps | 97.1% |
| Hodgdon H4350 | <<locked>> | 80% | 42,380 psi | 72% | 2428 fps | 96.5% |
| Hodgdon H4831 | <<locked>> | 94% | 48,109 psi | 82% | 2552 fps | 95.5% |
| Hodgdon H4831 SC | <<locked>> | 94% | 46,978 psi | 80% | 2533 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,200 psi | 58% | 2280 fps | 99.4% |
| Hodgdon Retumbo | <<locked>> | 96% | 37,884 psi | 64% | 2490 fps | 95.2% |
| Hodgdon Superformance | <<locked>> | 80% | 38,203 psi | 65% | 2418 fps | 96.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,224 psi | 46% | 1424 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 48,762 psi | 83% | 2487 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 37,275 psi | 63% | 2313 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,989 psi | 73% | 2405 fps | 97.8% |
| IMR 4831 | <<locked>> | 80% | 36,042 psi | 61% | 2323 fps | 98.6% |
| IMR 4955 Enduron | <<locked>> | 92% | 47,007 psi | 80% | 2500 fps | 95.5% |
| IMR 7828 SSC | <<locked>> | 96% | 45,716 psi | 78% | 2575 fps | 95.6% |
| Lovex S062 | <<locked>> | 80% | 49,037 psi | 83% | 2484 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 40,379 psi | 69% | 2359 fps | 98.4% |
| Lovex S070 | <<locked>> | 80% | 38,667 psi | 66% | 2343 fps | 97% |
| Lovex S071 | <<locked>> | 88% | 30,690 psi | 52% | 2208 fps | 95.1% |
| Norma 203B | <<locked>> | 80% | 49,342 psi | 84% | 2530 fps | 100% |
| Norma 204 | <<locked>> | 84% | 41,713 psi | 71% | 2441 fps | 95.8% |
| Norma MRP | 49.7 gr | 86% | 35,273 psi | 60% | 2398 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 37,246 psi | 63% | 2359 fps | 98.7% |
| Ramshot Grand | <<locked>> | 94% | 42,554 psi | 72% | 2526 fps | 95% |
| Ramshot Hunter | <<locked>> | 80% | 35,998 psi | 61% | 2349 fps | 96.9% |
| Ramshot Magnum | <<locked>> | 94% | 37,594 psi | 64% | 2411 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,775 psi | 47% | 1460 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 47,529 psi | 81% | 2490 fps | 99.1% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,990 psi | 75% | 2536 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 37,130 psi | 63% | 2382 fps | 98.6% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 36,085 psi | 61% | 2388 fps | 98% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 34,867 psi | 59% | 2415 fps | 95% |
| Rottweil R 903 | <<locked>> | 80% | 44,411 psi | 76% | 2441 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 42,815 psi | 73% | 2431 fps | 95% |
| Rottweil R 905 | <<locked>> | 88% | 40,161 psi | 68% | 2434 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 41,582 psi | 71% | 2379 fps | 97% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,379 psi | 69% | 2359 fps | 98.4% |
| Shooters World Precision | <<locked>> | 80% | 49,037 psi | 83% | 2484 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 38,667 psi | 66% | 2343 fps | 97% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 45,368 psi | 77% | 2490 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,745 psi | 78% | 2349 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,581 psi | 67% | 2310 fps | 97.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 39,784 psi | 68% | 2428 fps | 95.6% |
| Somchem S355 | <<locked>> | 80% | 44,643 psi | 76% | 2441 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 46,833 psi | 80% | 2477 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 33,837 psi | 58% | 2323 fps | 99.9% |
| Somchem S385 | <<locked>> | 84% | 35,708 psi | 61% | 2313 fps | 95.2% |
| Vihtavuori N150 | <<locked>> | 80% | 42,670 psi | 73% | 2375 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 38,653 psi | 66% | 2359 fps | 98.9% |
| Vihtavuori N165 | <<locked>> | 90% | 37,391 psi | 64% | 2346 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 49,530 psi | 84% | 2470 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 38,189 psi | 65% | 2362 fps | 98.7% |
| Vihtavuori N555 | <<locked>> | 80% | 29,443 psi | 50% | 2224 fps | 97.1% |
| Vihtavuori N560 | <<locked>> | 94% | 46,702 psi | 80% | 2608 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,782 psi | 64% | 2333 fps | 99.9% |
| Winchester 760 | <<locked>> | 80% | 39,479 psi | 67% | 2411 fps | 97.1% |
| Winchester StaBALL HD | <<locked>> | 80% | 23,598 psi | 40% | 2126 fps | 95.7% |
| Winchester Supreme 780 | <<locked>> | 90% | 40,074 psi | 68% | 2402 fps | 95.4% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 80 powders for .280 Rem. loaded with the .284 | 175gr | Speer Magnum Tip Soft Point. Norma MRP delivers the highest muzzle velocity at 2,730 fps; across all powders the maximum-charge window runs from 1,601 fps to 2,730 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 80 of the 80 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (405 MPa), the top charges use 62–90 %, leaving at least 10 % headroom. The 175.0 gr projectile in 0.284" calls for a 1:12.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Alliant Reloder-25, Bofors RP15 reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. Alliant Reloder-26, Accurate High Country, Norma MRP rank at the top here: for .280 Rem. with the .284 | 175gr | Speer Magnum Tip Soft Point they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.