Load Specifications
Load data in caliber .280 Rem. with .284 | 145gr | Hasler ARIETE bullet and 90 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, ReloadSwiss RS 60 and Hodgdon Superformance.
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 2015 | <<locked>> | 82% | 51,314 psi | 87% | 2667 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 53,069 psi | 90% | 2736 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 51,285 psi | 87% | 2749 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 52,765 psi | 90% | 2736 fps | 96.7% |
| Accurate 4064 | <<locked>> | 90% | 53,127 psi | 90% | 2782 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 52,866 psi | 90% | 2861 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 84% | 50,473 psi | 86% | 2762 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 90% | 51,677 psi | 88% | 2766 fps | 99.6% |
| ADI Benchmark 8208 | <<locked>> | 84% | 52,866 psi | 90% | 2766 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 50,357 psi | 86% | 2697 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 50,125 psi | 85% | 2874 fps | 99.6% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 51,126 psi | 87% | 2772 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 51,459 psi | 88% | 2785 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 52,243 psi | 89% | 2808 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 98% | 51,300 psi | 87% | 2871 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 94% | 52,330 psi | 89% | 2907 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,609 psi | 66% | 2651 fps | 98.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 43,482 psi | 74% | 2818 fps | 98% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 50,183 psi | 85% | 2776 fps | 99.3% |
| Bofors RP3 | <<locked>> | 90% | 51,735 psi | 88% | 2799 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 52,199 psi | 89% | 2769 fps | 96.9% |
| Hodgdon Benchmark | <<locked>> | 82% | 51,372 psi | 87% | 2703 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 52,025 psi | 89% | 2792 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 52,750 psi | 90% | 2808 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 96% | 52,562 psi | 89% | 2861 fps | 97.6% |
| Hodgdon H4895 | <<locked>> | 84% | 50,981 psi | 87% | 2772 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 50,836 psi | 87% | 2799 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 50,314 psi | 86% | 2805 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 49,385 psi | 84% | 2831 fps | 96.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,389 psi | 60% | 1719 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 52,562 psi | 89% | 2782 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 51,155 psi | 87% | 2762 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 51,213 psi | 87% | 2749 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 86% | 51,024 psi | 87% | 2723 fps | 97.2% |
| IMR 4350 | <<locked>> | 98% | 52,692 psi | 90% | 2799 fps | 97% |
| IMR 4451 Enduron | <<locked>> | 92% | 51,039 psi | 87% | 2753 fps | 97.1% |
| IMR 4831 | <<locked>> | 98% | 50,241 psi | 86% | 2805 fps | 99.3% |
| IMR 4895 | <<locked>> | 86% | 50,096 psi | 85% | 2785 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 84% | 52,866 psi | 90% | 2766 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 49,966 psi | 85% | 2740 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 50,314 psi | 86% | 2694 fps | 99.8% |
| Lovex S062 | <<locked>> | 88% | 50,894 psi | 87% | 2746 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 50,067 psi | 85% | 2743 fps | 98.2% |
| Lovex S070 | <<locked>> | 96% | 50,879 psi | 87% | 2776 fps | 97.4% |
| Norma 201 | <<locked>> | 86% | 52,489 psi | 89% | 2759 fps | 100% |
| Norma 202 | <<locked>> | 84% | 49,850 psi | 85% | 2717 fps | 100% |
| Norma 203B | <<locked>> | 88% | 51,430 psi | 88% | 2795 fps | 99.9% |
| Norma URP | <<locked>> | 98% | 52,388 psi | 89% | 2854 fps | 99.4% |
| Ramshot Big Game | <<locked>> | 88% | 51,808 psi | 88% | 2818 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 98% | 51,082 psi | 87% | 2848 fps | 98.2% |
| Ramshot TAC | <<locked>> | 84% | 53,156 psi | 90% | 2782 fps | 98.8% |
| Ramshot Wild Boar | <<locked>> | 84% | 52,823 psi | 90% | 2802 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,694 psi | 61% | 1759 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 49,850 psi | 85% | 2740 fps | 97.6% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 52,460 psi | 89% | 2871 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 51,837 psi | 88% | 2904 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 52,808 psi | 90% | 2884 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 52,605 psi | 90% | 2913 fps | 99.2% |
| Rottweil R 901 | <<locked>> | 82% | 50,169 psi | 85% | 2694 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 53,084 psi | 90% | 2759 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 51,605 psi | 88% | 2789 fps | 100% |
| Rottweil R 907 | <<locked>> | 94% | 52,199 psi | 89% | 2769 fps | 96.9% |
| Shooters World Long Rifle | <<locked>> | 94% | 50,067 psi | 85% | 2743 fps | 98.2% |
| Shooters World Match Rifle | <<locked>> | 84% | 49,966 psi | 85% | 2740 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 50,894 psi | 87% | 2746 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 50,879 psi | 87% | 2776 fps | 97.4% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 50,314 psi | 86% | 2802 fps | 99.8% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 51,503 psi | 88% | 2759 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 52,460 psi | 89% | 2789 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 50,850 psi | 87% | 2657 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 51,097 psi | 87% | 2657 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 50,154 psi | 85% | 2694 fps | 97% |
| Somchem S335 | <<locked>> | 84% | 50,372 psi | 86% | 2657 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 51,155 psi | 87% | 2753 fps | 99.8% |
| Somchem S355 | <<locked>> | 92% | 52,170 psi | 89% | 2789 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 50,154 psi | 85% | 2854 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 51,184 psi | 87% | 2644 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 52,750 psi | 90% | 2726 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 50,415 psi | 86% | 2697 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 50,154 psi | 85% | 2720 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 51,445 psi | 88% | 2799 fps | 99.3% |
| Vihtavuori N530 | <<locked>> | 82% | 50,082 psi | 85% | 2717 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 52,011 psi | 89% | 2740 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 50,459 psi | 86% | 2802 fps | 99.1% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 42,496 psi | 72% | 2733 fps | 98.6% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 51,488 psi | 88% | 2776 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 49,763 psi | 85% | 2759 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 52,881 psi | 90% | 2867 fps | 97.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,505 psi | 59% | 2648 fps | 98.4% |
| Winchester StaBALL Match | <<locked>> | 86% | 52,272 psi | 89% | 2795 fps | 100% |
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 2015 | <<locked>> | 80% | 48,240 psi | 82% | 2625 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 40,422 psi | 69% | 2539 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 47,863 psi | 81% | 2697 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 46,209 psi | 79% | 2628 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 38,276 psi | 65% | 2536 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 34,621 psi | 59% | 2520 fps | 95.7% |
| ADI AR 2206H | <<locked>> | 80% | 44,396 psi | 76% | 2654 fps | 99.2% |
| ADI AR 2208 | <<locked>> | 80% | 37,826 psi | 64% | 2507 fps | 97.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 46,543 psi | 79% | 2664 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 80% | 47,137 psi | 80% | 2654 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 40,538 psi | 69% | 2687 fps | 97.9% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 44,976 psi | 77% | 2667 fps | 99.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,246 psi | 63% | 2526 fps | 98.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,089 psi | 68% | 2589 fps | 98.1% |
| Alliant Reloder-16 | <<locked>> | 84% | 32,924 psi | 56% | 2480 fps | 95% |
| Alliant Reloder-17 | <<locked>> | 80% | 32,198 psi | 55% | 2493 fps | 96.7% |
| Alliant Reloder-23 | <<locked>> | 92% | 30,052 psi | 51% | 2434 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 96% | 37,521 psi | 64% | 2684 fps | 96.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 43,961 psi | 75% | 2664 fps | 98.4% |
| Bofors RP3 | <<locked>> | 80% | 36,883 psi | 63% | 2530 fps | 98.6% |
| Bofors RP7 | <<locked>> | 90% | 45,934 psi | 78% | 2661 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 48,385 psi | 82% | 2654 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 45,455 psi | 77% | 2687 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 37,913 psi | 65% | 2536 fps | 96.2% |
| Hodgdon H414 | <<locked>> | 90% | 43,033 psi | 73% | 2690 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 44,831 psi | 76% | 2667 fps | 99.5% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 30,052 psi | 51% | 2379 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 40,915 psi | 70% | 2638 fps | 99.3% |
| Hodgdon Superformance | 53.9 gr | 92% | 46,108 psi | 78% | 2772 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,179 psi | 45% | 1535 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 43,163 psi | 73% | 2621 fps | 99.3% |
| IMR 3031 | <<locked>> | 80% | 44,614 psi | 76% | 2661 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,711 psi | 68% | 2543 fps | 98% |
| IMR 4166 Enduron | <<locked>> | 82% | 44,976 psi | 77% | 2618 fps | 95.8% |
| IMR 4350 | <<locked>> | 94% | 46,427 psi | 79% | 2694 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 88% | 45,034 psi | 77% | 2644 fps | 95.7% |
| IMR 4831 | <<locked>> | 86% | 33,620 psi | 57% | 2477 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 41,075 psi | 70% | 2618 fps | 98.7% |
| IMR 8208 XBR | <<locked>> | 80% | 46,543 psi | 79% | 2664 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 43,482 psi | 74% | 2635 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 44,599 psi | 76% | 2595 fps | 99.2% |
| Lovex S062 | <<locked>> | 80% | 39,537 psi | 67% | 2543 fps | 99.3% |
| Lovex S065 | <<locked>> | 86% | 39,059 psi | 66% | 2536 fps | 95.6% |
| Lovex S070 | <<locked>> | 90% | 42,119 psi | 72% | 2618 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 43,395 psi | 74% | 2605 fps | 99.7% |
| Norma 202 | <<locked>> | 80% | 43,743 psi | 74% | 2615 fps | 100% |
| Norma 203B | <<locked>> | 80% | 39,421 psi | 67% | 2579 fps | 98.4% |
| Norma URP | <<locked>> | 86% | 35,070 psi | 60% | 2523 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 39,175 psi | 67% | 2592 fps | 98.2% |
| Ramshot Hunter | <<locked>> | 90% | 39,320 psi | 67% | 2621 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 46,470 psi | 79% | 2671 fps | 97.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 46,035 psi | 78% | 2690 fps | 99.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,542 psi | 45% | 1572 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 40,857 psi | 70% | 2572 fps | 95.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 42,380 psi | 72% | 2694 fps | 98.5% |
| ReloadSwiss RS 60 | 44.3 gr | 80% | 34,316 psi | 58% | 2559 fps | 99.4% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 34,592 psi | 59% | 2539 fps | 95.3% |
| ReloadSwiss RS 70 | 49.5 gr | 88% | 37,246 psi | 63% | 2605 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 47,181 psi | 80% | 2648 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 41,249 psi | 70% | 2559 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 80% | 34,664 psi | 59% | 2474 fps | 97.8% |
| Rottweil R 907 | <<locked>> | 90% | 45,934 psi | 78% | 2661 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 86% | 39,059 psi | 66% | 2536 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 43,482 psi | 74% | 2635 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 39,537 psi | 67% | 2543 fps | 99.3% |
| Shooters World SW4350 | <<locked>> | 90% | 42,119 psi | 72% | 2618 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,766 psi | 61% | 2523 fps | 97.3% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 44,715 psi | 76% | 2644 fps | 97.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 43,018 psi | 73% | 2628 fps | 99% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 44,817 psi | 76% | 2562 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,217 psi | 63% | 2428 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 43,990 psi | 75% | 2589 fps | 95.6% |
| Somchem S335 | <<locked>> | 80% | 44,425 psi | 76% | 2562 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 44,730 psi | 76% | 2644 fps | 99.2% |
| Somchem S355 | <<locked>> | 80% | 35,491 psi | 60% | 2480 fps | 97.8% |
| Somchem S365 | <<locked>> | 80% | 25,599 psi | 44% | 2303 fps | 95% |
| Vihtavuori N133 | <<locked>> | 80% | 45,223 psi | 77% | 2556 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 40,770 psi | 69% | 2539 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 41,597 psi | 71% | 2552 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,852 psi | 58% | 2418 fps | 98.6% |
| Vihtavuori N160 | <<locked>> | 84% | 34,287 psi | 58% | 2470 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 46,775 psi | 80% | 2664 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 40,074 psi | 68% | 2543 fps | 100% |
| Vihtavuori N550 | <<locked>> | 86% | 36,129 psi | 62% | 2526 fps | 95.8% |
| Vihtavuori N555 | <<locked>> | 92% | 32,314 psi | 55% | 2507 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,066 psi | 51% | 2346 fps | 95.9% |
| Winchester 748 | <<locked>> | 80% | 46,456 psi | 79% | 2707 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 43,033 psi | 73% | 2690 fps | 95.4% |
| Winchester StaBALL HD | <<locked>> | 96% | 30,153 psi | 51% | 2510 fps | 96.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 42,424 psi | 72% | 2628 fps | 99.3% |
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 90 powders for .280 Rem. loaded with the .284 | 145gr | Hasler ARIETE. ReloadSwiss RS 70 delivers the highest muzzle velocity at 2,913 fps; across all powders the maximum-charge window runs from 1,719 fps to 2,913 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 90 of the 90 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 145.0 gr projectile in 0.284" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Alliant Reloder-26, Hodgdon Hybrid 100V 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. ReloadSwiss RS 70, ReloadSwiss RS 60, Hodgdon Superformance rank at the top here: for .280 Rem. with the .284 | 145gr | Hasler ARIETE 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.