Load Specifications
Load data in caliber .280 Rem. with .284 | 173gr | RWS H-Mantel bullet and 89 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 2495 | <<locked>> | 82% | 53,142 psi | 90% | 2493 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 51,010 psi | 87% | 2507 fps | 98.4% |
| Accurate 3100ᴾ | <<locked>> | 100% | 51,445 psi | 88% | 2598 fps | 99.6% |
| Accurate 4064 | <<locked>> | 82% | 50,270 psi | 86% | 2500 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 50,299 psi | 86% | 2595 fps | 100% |
| Accurate High Country | <<locked>> | 98% | 52,344 psi | 89% | 2726 fps | 97.3% |
| ADI AR 2208 | <<locked>> | 84% | 50,821 psi | 87% | 2530 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 51,576 psi | 88% | 2635 fps | 97.9% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 52,562 psi | 89% | 2677 fps | 96.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 52,750 psi | 90% | 2687 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 51,314 psi | 87% | 2628 fps | 97.9% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 51,314 psi | 87% | 2628 fps | 97.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 51,068 psi | 87% | 2549 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 51,430 psi | 88% | 2569 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 51,358 psi | 87% | 2648 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 52,011 psi | 89% | 2667 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 50,618 psi | 86% | 2621 fps | 97.8% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 51,198 psi | 87% | 2677 fps | 98.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 48,196 psi | 82% | 2615 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 42,148 psi | 72% | 2546 fps | 99% |
| Alliant Reloder-26 | <<locked>> | 98% | 51,387 psi | 87% | 2743 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 46,905 psi | 80% | 2605 fps | 97.1% |
| Bofors RP3 | <<locked>> | 84% | 51,822 psi | 88% | 2566 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 51,198 psi | 87% | 2677 fps | 98.1% |
| Bofors RP7 | <<locked>> | 88% | 51,576 psi | 88% | 2552 fps | 98.7% |
| Hodgdon H380 | <<locked>> | 84% | 52,315 psi | 89% | 2582 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 90% | 52,678 psi | 90% | 2644 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 88% | 52,533 psi | 89% | 2602 fps | 98.3% |
| Hodgdon H4831 | <<locked>> | 98% | 52,562 psi | 89% | 2625 fps | 96.2% |
| Hodgdon H4831 SC | <<locked>> | 98% | 51,590 psi | 88% | 2612 fps | 96% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 51,474 psi | 88% | 2579 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 41,292 psi | 70% | 2569 fps | 96.1% |
| Hodgdon Superformance | <<locked>> | 90% | 52,446 psi | 89% | 2677 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,274 psi | 62% | 1594 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 50,169 psi | 85% | 2513 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 52,489 psi | 89% | 2539 fps | 99.1% |
| IMR 4350 | <<locked>> | 92% | 52,083 psi | 89% | 2582 fps | 98.8% |
| IMR 4451 Enduron | <<locked>> | 86% | 49,922 psi | 85% | 2526 fps | 98.7% |
| IMR 4831 | <<locked>> | 92% | 51,068 psi | 87% | 2592 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 52,736 psi | 90% | 2595 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 51,314 psi | 87% | 2569 fps | 96.1% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 49,879 psi | 85% | 2648 fps | 96.3% |
| Lovex S062 | <<locked>> | 82% | 50,328 psi | 86% | 2507 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 53,156 psi | 90% | 2575 fps | 99.8% |
| Lovex S070 | <<locked>> | 90% | 50,952 psi | 87% | 2562 fps | 99.1% |
| Lovex S071ᴾ | <<locked>> | 100% | 42,888 psi | 73% | 2464 fps | 98.5% |
| Norma 203B | <<locked>> | 82% | 50,734 psi | 86% | 2556 fps | 100% |
| Norma 204 | <<locked>> | 92% | 52,547 psi | 89% | 2628 fps | 97.9% |
| Norma MRP | <<locked>> | 98% | 50,517 psi | 86% | 2697 fps | 99.1% |
| Norma URP | <<locked>> | 92% | 52,547 psi | 89% | 2628 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 51,140 psi | 87% | 2582 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 50,169 psi | 85% | 2664 fps | 96.7% |
| Ramshot Hunter | <<locked>> | 92% | 51,430 psi | 88% | 2631 fps | 99.6% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 44,585 psi | 76% | 2549 fps | 97.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,072 psi | 63% | 1634 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 52,199 psi | 89% | 2566 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 51,692 psi | 88% | 2661 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 49,966 psi | 85% | 2615 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 52,156 psi | 89% | 2690 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 40,973 psi | 70% | 2562 fps | 97.1% |
| Rottweil R 902 | <<locked>> | 82% | 52,185 psi | 89% | 2516 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 52,040 psi | 89% | 2562 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 53,156 psi | 90% | 2605 fps | 97.1% |
| Rottweil R 905 | <<locked>> | 96% | 49,719 psi | 85% | 2605 fps | 97.8% |
| Rottweil R 907 | <<locked>> | 88% | 51,576 psi | 88% | 2552 fps | 98.7% |
| Shooters World Long Rifle | <<locked>> | 90% | 53,156 psi | 90% | 2575 fps | 99.8% |
| Shooters World Precision | <<locked>> | 82% | 50,328 psi | 86% | 2507 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 50,952 psi | 87% | 2562 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 50,038 psi | 85% | 2569 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 53,084 psi | 90% | 2457 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 52,605 psi | 90% | 2530 fps | 99.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 52,721 psi | 90% | 2654 fps | 98.3% |
| Somchem S355 | <<locked>> | 86% | 51,851 psi | 88% | 2556 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 51,416 psi | 88% | 2552 fps | 95.8% |
| Somchem S365 | <<locked>> | 94% | 51,706 psi | 88% | 2635 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 50,531 psi | 86% | 2589 fps | 98.5% |
| Vihtavuori N135 | <<locked>> | 82% | 52,504 psi | 89% | 2480 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 52,620 psi | 90% | 2493 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 53,069 psi | 90% | 2533 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 51,416 psi | 88% | 2579 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 49,705 psi | 85% | 2566 fps | 98.1% |
| Vihtavuori N540 | <<locked>> | 82% | 51,010 psi | 87% | 2497 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 50,676 psi | 86% | 2585 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 98% | 50,749 psi | 86% | 2638 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 51,097 psi | 87% | 2687 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 50,850 psi | 87% | 2552 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 52,678 psi | 90% | 2644 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 43,337 psi | 74% | 2667 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 50,328 psi | 86% | 2579 fps | 97.6% |
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 2495 | <<locked>> | 80% | 49,995 psi | 85% | 2451 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 47,877 psi | 82% | 2457 fps | 97.9% |
| Accurate 3100 | <<locked>> | 86% | 32,155 psi | 55% | 2247 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 47,340 psi | 81% | 2457 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 35,752 psi | 61% | 2336 fps | 98.3% |
| Accurate High Country | 52.8 gr | 94% | 45,687 psi | 78% | 2615 fps | 95.8% |
| ADI AR 2208 | <<locked>> | 80% | 44,933 psi | 76% | 2438 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 90% | 42,293 psi | 72% | 2474 fps | 95.6% |
| ADI AR 2213 | <<locked>> | 96% | 46,006 psi | 78% | 2566 fps | 95.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 49,037 psi | 83% | 2628 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 42,424 psi | 72% | 2474 fps | 95.8% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 42,424 psi | 72% | 2474 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 45,136 psi | 77% | 2457 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 48,196 psi | 82% | 2520 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 35,172 psi | 60% | 2349 fps | 98.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 39,508 psi | 67% | 2461 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 41,930 psi | 71% | 2467 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 92% | 39,291 psi | 67% | 2461 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 80% | 25,744 psi | 44% | 2129 fps | 96.1% |
| Alliant Reloder-25 | <<locked>> | 90% | 30,835 psi | 52% | 2280 fps | 95% |
| Alliant Reloder-26 | 47.4 gr | 82% | 29,080 psi | 50% | 2277 fps | 95.2% |
| Bofors RP15 | <<locked>> | 96% | 41,408 psi | 70% | 2500 fps | 95.5% |
| Bofors RP3 | <<locked>> | 80% | 45,382 psi | 77% | 2467 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 39,291 psi | 67% | 2461 fps | 95% |
| Bofors RP7 | <<locked>> | 80% | 40,059 psi | 68% | 2352 fps | 96.3% |
| Hodgdon H380 | <<locked>> | 80% | 45,905 psi | 78% | 2480 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 80% | 37,681 psi | 64% | 2379 fps | 96.2% |
| Hodgdon H4350 | <<locked>> | 80% | 40,857 psi | 70% | 2402 fps | 95.7% |
| Hodgdon H4831 | <<locked>> | 96% | 49,153 psi | 84% | 2572 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 96% | 48,254 psi | 82% | 2556 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 32,619 psi | 56% | 2251 fps | 98.9% |
| Hodgdon Retumbo | <<locked>> | 98% | 38,740 psi | 66% | 2510 fps | 95% |
| Hodgdon Superformance | <<locked>> | 80% | 36,680 psi | 62% | 2385 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,166 psi | 46% | 1424 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 47,253 psi | 80% | 2467 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 49,284 psi | 84% | 2490 fps | 98.7% |
| IMR 4350 | <<locked>> | 82% | 38,261 psi | 65% | 2336 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 41,495 psi | 71% | 2379 fps | 97.1% |
| IMR 4831 | <<locked>> | 80% | 34,432 psi | 59% | 2293 fps | 98% |
| IMR 4895 | <<locked>> | 80% | 49,443 psi | 84% | 2543 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 48,153 psi | 82% | 2520 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 98% | 46,630 psi | 79% | 2592 fps | 95.4% |
| Lovex S062 | <<locked>> | 80% | 47,485 psi | 81% | 2464 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 39,073 psi | 67% | 2336 fps | 97.8% |
| Lovex S070 | <<locked>> | 80% | 37,376 psi | 64% | 2320 fps | 96.3% |
| Lovex S071 | <<locked>> | 92% | 33,185 psi | 56% | 2270 fps | 95.8% |
| Norma 203B | <<locked>> | 80% | 47,558 psi | 81% | 2507 fps | 100% |
| Norma 204 | <<locked>> | 86% | 43,018 psi | 73% | 2467 fps | 95.8% |
| Norma MRP | 49.4 gr | 88% | 36,071 psi | 61% | 2421 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 35,839 psi | 61% | 2336 fps | 98.2% |
| Ramshot Big Game | <<locked>> | 80% | 47,674 psi | 81% | 2530 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 46,514 psi | 79% | 2598 fps | 95.8% |
| Ramshot Hunter | <<locked>> | 80% | 34,577 psi | 59% | 2320 fps | 96.1% |
| Ramshot Magnum | <<locked>> | 96% | 38,609 psi | 66% | 2431 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,702 psi | 47% | 1460 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 45,977 psi | 78% | 2464 fps | 98.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 42,003 psi | 72% | 2510 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 35,505 psi | 60% | 2356 fps | 97.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 34,577 psi | 59% | 2356 fps | 97.2% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 38,145 psi | 65% | 2497 fps | 96% |
| Rottweil R 902 | <<locked>> | 80% | 49,255 psi | 84% | 2474 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 42,844 psi | 73% | 2421 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 46,920 psi | 80% | 2507 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 90% | 40,843 psi | 70% | 2451 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 80% | 40,059 psi | 68% | 2352 fps | 96.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,073 psi | 67% | 2336 fps | 97.8% |
| Shooters World Precision | <<locked>> | 80% | 47,485 psi | 81% | 2464 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 37,376 psi | 64% | 2320 fps | 96.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 43,685 psi | 74% | 2467 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 44,309 psi | 75% | 2336 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 38,159 psi | 65% | 2283 fps | 96.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 40,466 psi | 69% | 2444 fps | 95.4% |
| Somchem S355 | <<locked>> | 80% | 43,178 psi | 74% | 2418 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 48,022 psi | 82% | 2500 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 32,242 psi | 55% | 2297 fps | 99.7% |
| Somchem S385 | <<locked>> | 86% | 36,622 psi | 62% | 2339 fps | 95.1% |
| Vihtavuori N135 | <<locked>> | 80% | 49,385 psi | 84% | 2441 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 49,647 psi | 85% | 2454 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 41,278 psi | 70% | 2359 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 37,057 psi | 63% | 2333 fps | 98.4% |
| Vihtavuori N165 | <<locked>> | 92% | 38,334 psi | 65% | 2365 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 80% | 47,877 psi | 82% | 2451 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 36,680 psi | 62% | 2336 fps | 98.1% |
| Vihtavuori N555 | <<locked>> | 80% | 28,108 psi | 48% | 2198 fps | 96.2% |
| Vihtavuori N560 | <<locked>> | 96% | 47,805 psi | 81% | 2631 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 36,289 psi | 62% | 2306 fps | 99.7% |
| Winchester 760 | <<locked>> | 80% | 37,898 psi | 65% | 2382 fps | 96.3% |
| Winchester StaBALL HD | <<locked>> | 82% | 24,105 psi | 41% | 2146 fps | 95.6% |
| Winchester Supreme 780 | <<locked>> | 92% | 41,002 psi | 70% | 2421 fps | 95.3% |
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 89 powders for .280 Rem. loaded with the .284 | 173gr | RWS H-Mantel. Alliant Reloder-26 delivers the highest muzzle velocity at 2,743 fps; across all powders the maximum-charge window runs from 1,594 fps to 2,743 fps. Accurate 3100 gives the best case fill at 100 %, and 89 of the 89 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 173.0 gr projectile in 0.284" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2213, Alliant Reloder-22 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 | 173gr | RWS H-Mantel 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.