Load Specifications
Load data in caliber .280 Rem. with .284 | 170gr | Norma ORYX 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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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2700 | <<locked>> | 82% | 51,909 psi | 88% | 2556 fps | 98.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 52,823 psi | 90% | 2651 fps | 99.7% |
| Accurate 4064 | <<locked>> | 82% | 51,532 psi | 88% | 2549 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 51,532 psi | 88% | 2644 fps | 100% |
| Accurate High Country | <<locked>> | 96% | 50,285 psi | 86% | 2726 fps | 96.9% |
| ADI AR 2208 | <<locked>> | 84% | 51,590 psi | 88% | 2575 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 52,678 psi | 90% | 2684 fps | 98.1% |
| ADI AR 2213 | <<locked>> | 98% | 50,067 psi | 85% | 2671 fps | 96.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 52,199 psi | 89% | 2598 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 52,214 psi | 89% | 2615 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 52,518 psi | 89% | 2697 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 49,763 psi | 85% | 2667 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 51,750 psi | 88% | 2671 fps | 98% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 52,475 psi | 89% | 2730 fps | 98.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 49,603 psi | 84% | 2667 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 43,265 psi | 74% | 2598 fps | 99.2% |
| Alliant Reloder-26 | <<locked>> | 98% | 52,591 psi | 90% | 2792 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 48,196 psi | 82% | 2657 fps | 97.4% |
| Bofors RP3 | <<locked>> | 84% | 52,910 psi | 90% | 2612 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 52,475 psi | 89% | 2730 fps | 98.3% |
| Bofors RP7 | <<locked>> | 88% | 52,417 psi | 89% | 2598 fps | 98.8% |
| Hodgdon H380 | <<locked>> | 82% | 49,719 psi | 85% | 2575 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 88% | 50,444 psi | 86% | 2644 fps | 99% |
| Hodgdon H4350 | <<locked>> | 86% | 50,415 psi | 86% | 2605 fps | 98% |
| Hodgdon H4831 SC | <<locked>> | 98% | 52,533 psi | 89% | 2657 fps | 96.2% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 52,591 psi | 90% | 2625 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 42,308 psi | 72% | 2625 fps | 96.5% |
| Hodgdon Superformance | <<locked>> | 88% | 49,806 psi | 85% | 2667 fps | 98.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,521 psi | 62% | 1624 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 51,039 psi | 87% | 2559 fps | 100% |
| IMR 4350 | <<locked>> | 92% | 53,069 psi | 90% | 2631 fps | 98.9% |
| IMR 4451 Enduron | <<locked>> | 86% | 50,792 psi | 86% | 2575 fps | 98.9% |
| IMR 4831 | <<locked>> | 92% | 52,170 psi | 89% | 2638 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 52,330 psi | 89% | 2618 fps | 96.4% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 51,082 psi | 87% | 2703 fps | 96.7% |
| Lovex S062 | <<locked>> | 82% | 51,256 psi | 87% | 2552 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 50,734 psi | 86% | 2572 fps | 99.6% |
| Lovex S070 | <<locked>> | 90% | 52,025 psi | 89% | 2615 fps | 99.3% |
| Lovex S071ᴾ | <<locked>> | 100% | 43,758 psi | 74% | 2510 fps | 98.6% |
| Norma 203B | <<locked>> | 82% | 51,576 psi | 88% | 2602 fps | 100% |
| Norma 204 | <<locked>> | 90% | 50,096 psi | 85% | 2621 fps | 97.5% |
| Norma MRP | <<locked>> | 98% | 51,808 psi | 88% | 2749 fps | 99.2% |
| Norma URP | <<locked>> | 90% | 50,676 psi | 86% | 2635 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 52,083 psi | 89% | 2625 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 51,256 psi | 87% | 2717 fps | 97.1% |
| Ramshot Hunter | <<locked>> | 92% | 52,649 psi | 90% | 2684 fps | 99.7% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 45,803 psi | 78% | 2602 fps | 97.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,028 psi | 63% | 1660 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 52,997 psi | 90% | 2612 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 52,895 psi | 90% | 2710 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 51,300 psi | 87% | 2667 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 49,893 psi | 85% | 2690 fps | 99.9% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 41,989 psi | 71% | 2615 fps | 97.5% |
| Rottweil R 902 | <<locked>> | 82% | 53,127 psi | 90% | 2562 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 53,069 psi | 90% | 2612 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 51,024 psi | 87% | 2608 fps | 96.7% |
| Rottweil R 905 | <<locked>> | 96% | 50,937 psi | 87% | 2657 fps | 98% |
| Rottweil R 907 | <<locked>> | 88% | 52,417 psi | 89% | 2598 fps | 98.8% |
| Shooters World Long Rifle | <<locked>> | 88% | 50,734 psi | 86% | 2572 fps | 99.6% |
| Shooters World Precision | <<locked>> | 82% | 51,256 psi | 87% | 2552 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 52,025 psi | 89% | 2615 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 50,966 psi | 87% | 2615 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 50,865 psi | 87% | 2461 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 50,328 psi | 86% | 2530 fps | 98.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 50,488 psi | 86% | 2654 fps | 97.9% |
| Somchem S355 | <<locked>> | 86% | 52,910 psi | 90% | 2602 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 52,286 psi | 89% | 2598 fps | 96.1% |
| Somchem S365 | <<locked>> | 94% | 52,852 psi | 90% | 2680 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 51,634 psi | 88% | 2638 fps | 98.7% |
| Vihtavuori N150 | <<locked>> | 86% | 50,981 psi | 87% | 2539 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 52,533 psi | 89% | 2628 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 50,981 psi | 87% | 2615 fps | 98.3% |
| Vihtavuori N540 | <<locked>> | 82% | 51,706 psi | 88% | 2536 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 51,677 psi | 88% | 2631 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 52,025 psi | 89% | 2687 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 52,243 psi | 89% | 2740 fps | 96.6% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 51,851 psi | 88% | 2598 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 50,444 psi | 86% | 2644 fps | 99% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 44,701 psi | 76% | 2723 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 51,605 psi | 88% | 2631 fps | 97.9% |
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% | 48,791 psi | 83% | 2507 fps | 98.1% |
| Accurate 3100 | <<locked>> | 86% | 32,953 psi | 56% | 2293 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 48,370 psi | 82% | 2503 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 36,593 psi | 62% | 2382 fps | 98.5% |
| Accurate High Country | 53.4 gr | 92% | 43,569 psi | 74% | 2608 fps | 95.1% |
| ADI AR 2208 | <<locked>> | 80% | 45,542 psi | 78% | 2480 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 40,553 psi | 69% | 2467 fps | 95.1% |
| ADI AR 2213 | <<locked>> | 96% | 46,934 psi | 80% | 2615 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,050 psi | 78% | 2503 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 49,052 psi | 84% | 2566 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 35,911 psi | 61% | 2395 fps | 98.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 40,437 psi | 69% | 2510 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 40,263 psi | 69% | 2467 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 92% | 40,335 psi | 69% | 2513 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,339 psi | 45% | 2172 fps | 96.4% |
| Alliant Reloder-25 | <<locked>> | 90% | 31,546 psi | 54% | 2326 fps | 95.4% |
| Alliant Reloder-26 | 49.1 gr | 82% | 29,863 psi | 51% | 2326 fps | 95.6% |
| Bofors RP15 | <<locked>> | 94% | 39,798 psi | 68% | 2500 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 46,267 psi | 79% | 2513 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 40,335 psi | 69% | 2513 fps | 95.4% |
| Bofors RP7 | <<locked>> | 80% | 40,814 psi | 69% | 2395 fps | 96.5% |
| Hodgdon H380 | <<locked>> | 80% | 46,688 psi | 79% | 2523 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 80% | 38,624 psi | 66% | 2428 fps | 96.5% |
| Hodgdon H4350 | <<locked>> | 80% | 41,568 psi | 71% | 2444 fps | 95.9% |
| Hodgdon H4831 SC | <<locked>> | 96% | 49,269 psi | 84% | 2605 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,431 psi | 57% | 2297 fps | 99% |
| Hodgdon Retumbo | <<locked>> | 98% | 39,769 psi | 68% | 2566 fps | 95.5% |
| Hodgdon Superformance | <<locked>> | 80% | 37,536 psi | 64% | 2434 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,195 psi | 46% | 1447 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 47,877 psi | 82% | 2510 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 36,550 psi | 62% | 2329 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,250 psi | 72% | 2425 fps | 97.3% |
| IMR 4831 | <<locked>> | 80% | 35,215 psi | 60% | 2339 fps | 98.2% |
| IMR 4955 Enduron | <<locked>> | 94% | 48,950 psi | 83% | 2566 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 96% | 44,860 psi | 76% | 2592 fps | 95% |
| Lovex S062 | <<locked>> | 80% | 48,138 psi | 82% | 2507 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 39,871 psi | 68% | 2382 fps | 98% |
| Lovex S070 | <<locked>> | 80% | 38,130 psi | 65% | 2365 fps | 96.6% |
| Lovex S071 | <<locked>> | 90% | 31,981 psi | 54% | 2270 fps | 95.3% |
| Norma 203B | <<locked>> | 80% | 48,428 psi | 82% | 2552 fps | 100% |
| Norma 204 | <<locked>> | 84% | 41,060 psi | 70% | 2461 fps | 95.2% |
| Norma MRP | 51.1 gr | 88% | 36,869 psi | 63% | 2467 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 36,651 psi | 62% | 2382 fps | 98.4% |
| Ramshot Big Game | <<locked>> | 80% | 48,631 psi | 83% | 2575 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 44,570 psi | 76% | 2598 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 35,404 psi | 60% | 2369 fps | 96.4% |
| Ramshot Magnum | <<locked>> | 96% | 39,537 psi | 67% | 2484 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,717 psi | 47% | 1483 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 46,630 psi | 79% | 2510 fps | 98.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,018 psi | 73% | 2556 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,390 psi | 62% | 2402 fps | 98.1% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 35,288 psi | 60% | 2405 fps | 97.4% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 36,564 psi | 62% | 2487 fps | 95.3% |
| Rottweil R 902 | <<locked>> | 80% | 49,922 psi | 85% | 2516 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 43,758 psi | 74% | 2467 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 44,933 psi | 76% | 2503 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 88% | 39,189 psi | 67% | 2448 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 80% | 40,814 psi | 69% | 2395 fps | 96.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,871 psi | 68% | 2382 fps | 98% |
| Shooters World Precision | <<locked>> | 80% | 48,138 psi | 82% | 2507 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 38,130 psi | 65% | 2365 fps | 96.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 44,686 psi | 76% | 2516 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 44,991 psi | 77% | 2375 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 38,856 psi | 66% | 2329 fps | 96.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 41,437 psi | 71% | 2493 fps | 95.8% |
| Somchem S355 | <<locked>> | 80% | 44,077 psi | 75% | 2467 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 49,153 psi | 84% | 2549 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 33,025 psi | 56% | 2343 fps | 99.8% |
| Somchem S385 | <<locked>> | 86% | 37,391 psi | 64% | 2382 fps | 95.4% |
| Vihtavuori N150 | <<locked>> | 80% | 42,105 psi | 72% | 2402 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 37,855 psi | 64% | 2379 fps | 98.6% |
| Vihtavuori N165 | <<locked>> | 92% | 39,160 psi | 67% | 2411 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 48,631 psi | 83% | 2493 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,362 psi | 64% | 2382 fps | 98.3% |
| Vihtavuori N555 | <<locked>> | 80% | 28,877 psi | 49% | 2241 fps | 96.5% |
| Vihtavuori N560 | <<locked>> | 96% | 49,023 psi | 83% | 2684 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 36,999 psi | 63% | 2352 fps | 99.7% |
| Winchester 760 | <<locked>> | 80% | 38,624 psi | 66% | 2428 fps | 96.5% |
| Winchester StaBALL HD | <<locked>> | 82% | 24,642 psi | 42% | 2192 fps | 96.1% |
| Winchester Supreme 780 | <<locked>> | 92% | 42,018 psi | 72% | 2470 fps | 95.6% |
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 | 170gr | Norma ORYX. Alliant Reloder-26 delivers the highest muzzle velocity at 2,792 fps; across all powders the maximum-charge window runs from 1,624 fps to 2,792 fps. Accurate 3100 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 170.0 gr projectile in 0.284" calls for a 1:12.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-22, Alliant Reloder-23 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 | 170gr | Norma ORYX 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.