Load Specifications
Load data in caliber .280 Rem. with .284 | 174gr | Prvi Partizan SP 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, Norma MRP and ReloadSwiss RS 70.
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% | 51,982 psi | 88% | 2520 fps | 98.7% |
| Accurate 3100ᴾ | <<locked>> | 100% | 52,736 psi | 90% | 2615 fps | 99.7% |
| Accurate 4064 | <<locked>> | 82% | 51,445 psi | 88% | 2513 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 51,445 psi | 88% | 2608 fps | 100% |
| ADI AR 2208 | <<locked>> | 84% | 51,547 psi | 88% | 2539 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 52,489 psi | 89% | 2648 fps | 98.2% |
| ADI AR 2213 | <<locked>> | 98% | 50,256 psi | 86% | 2641 fps | 96.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 52,199 psi | 89% | 2562 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 52,185 psi | 89% | 2575 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 52,402 psi | 89% | 2661 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 49,705 psi | 85% | 2631 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 51,866 psi | 88% | 2638 fps | 98.2% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 52,446 psi | 89% | 2694 fps | 98.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 49,472 psi | 84% | 2628 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 43,178 psi | 74% | 2566 fps | 99.3% |
| Alliant Reloder-26 | <<locked>> | 98% | 52,663 psi | 90% | 2756 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 48,080 psi | 82% | 2621 fps | 97.5% |
| Bofors RP3 | <<locked>> | 84% | 52,634 psi | 90% | 2572 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 52,446 psi | 89% | 2694 fps | 98.4% |
| Bofors RP7 | <<locked>> | 88% | 52,214 psi | 89% | 2559 fps | 98.9% |
| Hodgdon H380 | <<locked>> | 84% | 53,026 psi | 90% | 2589 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 50,357 psi | 86% | 2605 fps | 99.1% |
| Hodgdon H4350 | <<locked>> | 86% | 50,270 psi | 86% | 2566 fps | 98.1% |
| Hodgdon H4831 | <<locked>> | 96% | 50,270 psi | 86% | 2589 fps | 95.8% |
| Hodgdon H4831 SC | <<locked>> | 98% | 52,765 psi | 90% | 2628 fps | 96.4% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 52,533 psi | 89% | 2589 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 42,279 psi | 72% | 2592 fps | 96.7% |
| Hodgdon Superformance | <<locked>> | 88% | 49,647 psi | 85% | 2631 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,463 psi | 62% | 1598 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 50,908 psi | 87% | 2520 fps | 100% |
| IMR 4350 | <<locked>> | 92% | 52,982 psi | 90% | 2592 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 86% | 50,865 psi | 87% | 2543 fps | 99% |
| IMR 4831 | <<locked>> | 92% | 52,083 psi | 89% | 2602 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 52,127 psi | 89% | 2582 fps | 96.5% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 51,024 psi | 87% | 2667 fps | 96.8% |
| Lovex S062 | <<locked>> | 82% | 51,140 psi | 87% | 2516 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 50,879 psi | 87% | 2539 fps | 99.7% |
| Lovex S070 | <<locked>> | 90% | 51,909 psi | 88% | 2575 fps | 99.3% |
| Lovex S071ᴾ | <<locked>> | 100% | 43,787 psi | 75% | 2477 fps | 98.7% |
| Norma 203B | <<locked>> | 82% | 51,547 psi | 88% | 2566 fps | 100% |
| Norma 204 | <<locked>> | 90% | 50,067 psi | 85% | 2589 fps | 97.6% |
| Norma MRP | <<locked>> | 98% | 51,764 psi | 88% | 2713 fps | 99.3% |
| Norma URP | <<locked>> | 90% | 50,546 psi | 86% | 2595 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 52,214 psi | 89% | 2592 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 51,285 psi | 87% | 2684 fps | 97.2% |
| Ramshot Hunter | <<locked>> | 92% | 52,402 psi | 89% | 2644 fps | 99.7% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 45,571 psi | 78% | 2566 fps | 97.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,985 psi | 63% | 1634 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 53,127 psi | 90% | 2579 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 52,823 psi | 90% | 2671 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 51,314 psi | 87% | 2631 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 49,719 psi | 85% | 2651 fps | 99.9% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 41,872 psi | 71% | 2579 fps | 97.7% |
| Rottweil R 902 | <<locked>> | 82% | 53,011 psi | 90% | 2526 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 52,823 psi | 90% | 2572 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 50,995 psi | 87% | 2572 fps | 96.8% |
| Rottweil R 905 | <<locked>> | 96% | 51,024 psi | 87% | 2625 fps | 98.2% |
| Rottweil R 907 | <<locked>> | 88% | 52,214 psi | 89% | 2559 fps | 98.9% |
| Shooters World Long Rifle | <<locked>> | 88% | 50,879 psi | 87% | 2539 fps | 99.7% |
| Shooters World Precision | <<locked>> | 82% | 51,140 psi | 87% | 2516 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 51,909 psi | 88% | 2575 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 50,778 psi | 86% | 2579 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 50,734 psi | 86% | 2421 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 50,212 psi | 85% | 2493 fps | 99% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 50,560 psi | 86% | 2618 fps | 98.1% |
| Somchem S355 | <<locked>> | 86% | 52,924 psi | 90% | 2566 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 52,214 psi | 89% | 2562 fps | 96.2% |
| Somchem S365 | <<locked>> | 94% | 52,837 psi | 90% | 2644 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 51,779 psi | 88% | 2605 fps | 98.8% |
| Vihtavuori N150 | <<locked>> | 86% | 50,749 psi | 86% | 2500 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 52,431 psi | 89% | 2589 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 50,894 psi | 87% | 2579 fps | 98.4% |
| Vihtavuori N540 | <<locked>> | 82% | 51,721 psi | 88% | 2503 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 51,677 psi | 88% | 2595 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 51,837 psi | 88% | 2651 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 52,257 psi | 89% | 2703 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 51,663 psi | 88% | 2559 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 50,357 psi | 86% | 2605 fps | 99.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 44,425 psi | 76% | 2684 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 51,503 psi | 88% | 2595 fps | 98% |
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% | 48,544 psi | 83% | 2467 fps | 98.1% |
| Accurate 3100 | <<locked>> | 86% | 32,793 psi | 56% | 2260 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 48,240 psi | 82% | 2467 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 36,753 psi | 63% | 2356 fps | 98.6% |
| ADI AR 2208 | <<locked>> | 80% | 45,658 psi | 78% | 2448 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 40,669 psi | 69% | 2441 fps | 95.3% |
| ADI AR 2213 | <<locked>> | 96% | 47,050 psi | 80% | 2585 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 45,905 psi | 78% | 2467 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 49,255 psi | 84% | 2533 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 35,810 psi | 61% | 2359 fps | 98.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 40,451 psi | 69% | 2474 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 40,161 psi | 68% | 2431 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 92% | 40,103 psi | 68% | 2474 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,252 psi | 45% | 2142 fps | 96.6% |
| Alliant Reloder-25 | <<locked>> | 90% | 31,488 psi | 54% | 2300 fps | 95.6% |
| Alliant Reloder-26 | 48.1 gr | 82% | 29,805 psi | 51% | 2297 fps | 95.8% |
| Bofors RP15 | <<locked>> | 94% | 39,566 psi | 67% | 2461 fps | 95.1% |
| Bofors RP3 | <<locked>> | 80% | 46,180 psi | 79% | 2477 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 40,103 psi | 68% | 2474 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 40,727 psi | 69% | 2362 fps | 96.6% |
| Hodgdon H380 | <<locked>> | 80% | 46,659 psi | 79% | 2490 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 80% | 38,609 psi | 66% | 2395 fps | 96.7% |
| Hodgdon H4350 | <<locked>> | 80% | 41,510 psi | 71% | 2411 fps | 96.1% |
| Hodgdon H4831 | <<locked>> | 94% | 47,079 psi | 80% | 2536 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 96% | 49,400 psi | 84% | 2575 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,315 psi | 57% | 2264 fps | 99.1% |
| Hodgdon Retumbo | <<locked>> | 98% | 39,653 psi | 68% | 2533 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 37,463 psi | 64% | 2402 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,195 psi | 46% | 1424 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 48,037 psi | 82% | 2477 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 36,477 psi | 62% | 2300 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,134 psi | 72% | 2392 fps | 97.4% |
| IMR 4831 | <<locked>> | 80% | 35,360 psi | 60% | 2313 fps | 98.3% |
| IMR 4955 Enduron | <<locked>> | 92% | 45,977 psi | 78% | 2480 fps | 95% |
| IMR 7828 SSC | <<locked>> | 96% | 44,715 psi | 76% | 2556 fps | 95.1% |
| Lovex S062 | <<locked>> | 80% | 48,254 psi | 82% | 2474 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 39,769 psi | 68% | 2349 fps | 98.1% |
| Lovex S070 | <<locked>> | 80% | 38,029 psi | 65% | 2333 fps | 96.7% |
| Lovex S071 | <<locked>> | 90% | 31,821 psi | 54% | 2238 fps | 95.4% |
| Norma 203B | <<locked>> | 80% | 48,602 psi | 83% | 2520 fps | 100% |
| Norma 204 | <<locked>> | 84% | 40,886 psi | 70% | 2425 fps | 95.3% |
| Norma MRP | 49 gr | 86% | 34,534 psi | 59% | 2382 fps | 95% |
| Norma URP | <<locked>> | 80% | 36,550 psi | 62% | 2349 fps | 98.5% |
| Ramshot Big Game | <<locked>> | 80% | 48,675 psi | 83% | 2539 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 44,469 psi | 76% | 2562 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 80% | 35,418 psi | 60% | 2336 fps | 96.6% |
| Ramshot Magnum | <<locked>> | 96% | 39,537 psi | 67% | 2451 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,746 psi | 47% | 1460 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 46,630 psi | 79% | 2477 fps | 98.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,018 psi | 73% | 2523 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,201 psi | 62% | 2365 fps | 98.2% |
| ReloadSwiss RS 70 | 46.5 gr | 80% | 35,360 psi | 60% | 2375 fps | 97.6% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 36,593 psi | 62% | 2457 fps | 95.5% |
| Rottweil R 902 | <<locked>> | 80% | 50,038 psi | 85% | 2484 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 43,656 psi | 74% | 2431 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 44,802 psi | 76% | 2467 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 88% | 39,305 psi | 67% | 2418 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 80% | 40,727 psi | 69% | 2362 fps | 96.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,769 psi | 68% | 2349 fps | 98.1% |
| Shooters World Precision | <<locked>> | 80% | 48,254 psi | 82% | 2474 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 38,029 psi | 65% | 2333 fps | 96.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 44,686 psi | 76% | 2480 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,063 psi | 77% | 2346 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 38,769 psi | 66% | 2293 fps | 96.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 38,928 psi | 66% | 2411 fps | 95.1% |
| Somchem S355 | <<locked>> | 80% | 43,918 psi | 75% | 2431 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 49,066 psi | 84% | 2513 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 32,938 psi | 56% | 2310 fps | 99.8% |
| Somchem S385 | <<locked>> | 86% | 37,246 psi | 63% | 2349 fps | 95.5% |
| Vihtavuori N150 | <<locked>> | 80% | 41,974 psi | 71% | 2365 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 38,029 psi | 65% | 2349 fps | 98.7% |
| Vihtavuori N165 | <<locked>> | 92% | 39,102 psi | 67% | 2379 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 48,588 psi | 83% | 2457 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,333 psi | 64% | 2349 fps | 98.4% |
| Vihtavuori N555 | <<locked>> | 80% | 28,790 psi | 49% | 2211 fps | 96.7% |
| Vihtavuori N560 | <<locked>> | 94% | 45,643 psi | 78% | 2589 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,057 psi | 63% | 2323 fps | 99.8% |
| Winchester 760 | <<locked>> | 80% | 38,609 psi | 66% | 2395 fps | 96.7% |
| Winchester StaBALL HD | <<locked>> | 80% | 23,177 psi | 39% | 2110 fps | 95% |
| Winchester Supreme 780 | <<locked>> | 92% | 41,785 psi | 71% | 2434 fps | 95.7% |
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 87 powders for .280 Rem. loaded with the .284 | 174gr | Prvi Partizan SP. Alliant Reloder-26 delivers the highest muzzle velocity at 2,756 fps; across all powders the maximum-charge window runs from 1,598 fps to 2,756 fps. Accurate 3100 gives the best case fill at 100 %, and 87 of the 87 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (405 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 174.0 gr projectile in 0.284" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2217, ADI AR 2225 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, Norma MRP, ReloadSwiss RS 70 rank at the top here: for .280 Rem. with the .284 | 174gr | Prvi Partizan SP they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2217, ADI AR 2225, Baschieri & Pellagri 109 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.