Load Specifications
Load data in caliber .280 Rem. with .284 | 145gr | Speer Hot-Cor bullet and 87 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-17 and ReloadSwiss RS 60.
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.
A valid access license is required to use the Personalized Load Calculator.
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>> | 84% | 52,388 psi | 89% | 2736 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 50,995 psi | 87% | 2736 fps | 97% |
| Accurate 3100ᴾ | <<locked>> | 100% | 46,615 psi | 79% | 2756 fps | 97.8% |
| Accurate 4064 | <<locked>> | 86% | 52,562 psi | 89% | 2789 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 52,649 psi | 90% | 2874 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 82% | 52,257 psi | 89% | 2812 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 50,357 psi | 86% | 2766 fps | 99.7% |
| ADI AR 2209 | <<locked>> | 98% | 50,778 psi | 86% | 2851 fps | 96% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 51,967 psi | 88% | 2927 fps | 99.9% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 52,997 psi | 90% | 2825 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 50,502 psi | 86% | 2789 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 50,937 psi | 87% | 2808 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 94% | 50,386 psi | 86% | 2881 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 90% | 51,097 psi | 87% | 2907 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 53,011 psi | 90% | 2894 fps | 96.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 44,077 psi | 75% | 2782 fps | 99.8% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 38,667 psi | 66% | 2680 fps | 96.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 49,864 psi | 85% | 2959 fps | 99.5% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 52,025 psi | 89% | 2825 fps | 99.7% |
| Bofors RP3 | <<locked>> | 86% | 50,807 psi | 86% | 2799 fps | 100% |
| Bofors RP7 | <<locked>> | 90% | 50,807 psi | 86% | 2772 fps | 97.2% |
| Hodgdon H380 | <<locked>> | 86% | 51,677 psi | 88% | 2815 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 92% | 51,619 psi | 88% | 2867 fps | 98% |
| Hodgdon H4350 | <<locked>> | 90% | 52,156 psi | 89% | 2831 fps | 96.8% |
| Hodgdon H4895 | <<locked>> | 82% | 52,852 psi | 90% | 2822 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 50,183 psi | 85% | 2805 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 52,576 psi | 90% | 2854 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 51,764 psi | 88% | 2900 fps | 97.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,998 psi | 61% | 1762 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 50,734 psi | 86% | 2772 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 53,069 psi | 90% | 2802 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 52,997 psi | 90% | 2802 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 84% | 52,373 psi | 89% | 2776 fps | 98% |
| IMR 4350 | <<locked>> | 94% | 51,459 psi | 88% | 2805 fps | 97.3% |
| IMR 4451 Enduron | <<locked>> | 90% | 52,692 psi | 90% | 2808 fps | 97.9% |
| IMR 4831 | <<locked>> | 94% | 49,719 psi | 85% | 2812 fps | 99.5% |
| IMR 4895 | <<locked>> | 84% | 52,199 psi | 89% | 2838 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 52,098 psi | 89% | 2785 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 51,517 psi | 88% | 2740 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 53,040 psi | 90% | 2795 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 52,388 psi | 89% | 2802 fps | 99% |
| Lovex S070 | <<locked>> | 92% | 50,256 psi | 86% | 2785 fps | 97.8% |
| Norma 201 | <<locked>> | 82% | 51,198 psi | 87% | 2759 fps | 100% |
| Norma 202 | <<locked>> | 82% | 51,895 psi | 88% | 2762 fps | 100% |
| Norma 203B | <<locked>> | 84% | 50,241 psi | 86% | 2795 fps | 99.9% |
| Norma 204 | <<locked>> | 94% | 51,619 psi | 88% | 2844 fps | 96.1% |
| Norma MRPᴾ | <<locked>> | 100% | 49,342 psi | 84% | 2910 fps | 97.5% |
| Norma URP | <<locked>> | 94% | 51,677 psi | 88% | 2861 fps | 99.6% |
| Ramshot Big Game | <<locked>> | 84% | 50,430 psi | 86% | 2815 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 94% | 50,299 psi | 86% | 2854 fps | 98.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,637 psi | 62% | 1804 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 51,808 psi | 88% | 2795 fps | 98.4% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 51,010 psi | 87% | 2864 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 50,749 psi | 86% | 2904 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 52,431 psi | 89% | 2900 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 51,387 psi | 87% | 2920 fps | 99.4% |
| Rottweil R 902 | <<locked>> | 84% | 51,706 psi | 88% | 2759 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 50,966 psi | 87% | 2795 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 52,098 psi | 89% | 2881 fps | 96.7% |
| Rottweil R 907 | <<locked>> | 90% | 50,807 psi | 86% | 2772 fps | 97.2% |
| Shooters World Long Rifle | <<locked>> | 92% | 52,388 psi | 89% | 2802 fps | 99% |
| Shooters World Match Rifle | <<locked>> | 82% | 52,098 psi | 89% | 2785 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 53,040 psi | 90% | 2795 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 50,256 psi | 86% | 2785 fps | 97.8% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 52,504 psi | 89% | 2858 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 50,647 psi | 86% | 2779 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 52,417 psi | 89% | 2700 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 52,808 psi | 90% | 2700 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 52,388 psi | 89% | 2756 fps | 98% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 51,605 psi | 88% | 2874 fps | 96.5% |
| Somchem S335 | <<locked>> | 82% | 51,938 psi | 88% | 2697 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 52,968 psi | 90% | 2802 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 51,416 psi | 88% | 2799 fps | 100% |
| Somchem S365 | <<locked>> | 96% | 50,009 psi | 85% | 2864 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 52,707 psi | 90% | 2858 fps | 97.6% |
| Vihtavuori N133 | <<locked>> | 82% | 52,837 psi | 90% | 2687 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 51,909 psi | 88% | 2726 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 52,127 psi | 89% | 2740 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 52,344 psi | 89% | 2772 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 50,415 psi | 86% | 2802 fps | 99.4% |
| Vihtavuori N540 | <<locked>> | 84% | 50,459 psi | 86% | 2733 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 53,156 psi | 90% | 2864 fps | 99.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 49,008 psi | 83% | 2858 fps | 99.7% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 50,082 psi | 85% | 2779 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 51,880 psi | 88% | 2871 fps | 98% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 39,581 psi | 67% | 2808 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 82% | 50,676 psi | 86% | 2792 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 2495 | <<locked>> | 80% | 46,137 psi | 79% | 2644 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 44,701 psi | 76% | 2625 fps | 95.5% |
| Accurate 3100 | <<locked>> | 94% | 37,985 psi | 65% | 2589 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 43,642 psi | 74% | 2644 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 32,518 psi | 55% | 2477 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 49,226 psi | 84% | 2759 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 41,684 psi | 71% | 2608 fps | 98.6% |
| ADI AR 2209 | <<locked>> | 96% | 47,427 psi | 81% | 2789 fps | 95.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 45,339 psi | 77% | 2808 fps | 99.3% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 49,850 psi | 85% | 2772 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 41,713 psi | 71% | 2631 fps | 99.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 44,788 psi | 76% | 2700 fps | 99.2% |
| Alliant Reloder-16 | <<locked>> | 80% | 32,489 psi | 55% | 2487 fps | 95.5% |
| Alliant Reloder-17 | 48 gr | 80% | 36,260 psi | 62% | 2612 fps | 98.6% |
| Alliant Reloder-19 | <<locked>> | 96% | 46,659 psi | 79% | 2779 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 86% | 28,340 psi | 48% | 2398 fps | 95.2% |
| Alliant Reloder-25 | <<locked>> | 98% | 36,434 psi | 62% | 2621 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 90% | 34,983 psi | 60% | 2638 fps | 95.7% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 48,733 psi | 83% | 2772 fps | 99.4% |
| Bofors RP3 | <<locked>> | 80% | 41,814 psi | 71% | 2641 fps | 99.6% |
| Bofors RP7 | <<locked>> | 84% | 42,322 psi | 72% | 2615 fps | 95% |
| Hodgdon H380 | <<locked>> | 80% | 42,409 psi | 72% | 2648 fps | 97.9% |
| Hodgdon H414 | <<locked>> | 86% | 42,351 psi | 72% | 2697 fps | 95.8% |
| Hodgdon H4350 | <<locked>> | 86% | 45,701 psi | 78% | 2717 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 49,705 psi | 85% | 2772 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,936 psi | 51% | 2388 fps | 96.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 45,890 psi | 78% | 2746 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 86% | 41,771 psi | 71% | 2710 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,760 psi | 46% | 1572 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 47,456 psi | 81% | 2717 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 49,763 psi | 85% | 2753 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 43,816 psi | 75% | 2641 fps | 99.1% |
| IMR 4166 Enduron | <<locked>> | 80% | 46,195 psi | 79% | 2667 fps | 96.7% |
| IMR 4350 | <<locked>> | 88% | 42,685 psi | 73% | 2644 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 82% | 41,278 psi | 70% | 2592 fps | 95.2% |
| IMR 4831 | <<locked>> | 80% | 31,517 psi | 54% | 2434 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 45,934 psi | 78% | 2730 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 80% | 48,950 psi | 83% | 2736 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 48,515 psi | 83% | 2687 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 43,903 psi | 75% | 2644 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 36,245 psi | 62% | 2490 fps | 95.2% |
| Lovex S070 | <<locked>> | 86% | 41,626 psi | 71% | 2625 fps | 95.8% |
| Norma 201 | <<locked>> | 80% | 48,153 psi | 82% | 2707 fps | 100% |
| Norma 202 | <<locked>> | 80% | 48,501 psi | 83% | 2710 fps | 100% |
| Norma 203B | <<locked>> | 80% | 44,164 psi | 75% | 2687 fps | 99.5% |
| Norma 204 | <<locked>> | 92% | 48,501 psi | 83% | 2792 fps | 95.3% |
| Norma MRP | <<locked>> | 96% | 42,989 psi | 73% | 2785 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 32,692 psi | 56% | 2477 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 44,063 psi | 75% | 2703 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 86% | 38,696 psi | 66% | 2628 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,180 psi | 46% | 1608 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 42,554 psi | 72% | 2628 fps | 96.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 47,834 psi | 81% | 2812 fps | 99.6% |
| ReloadSwiss RS 60 | 48 gr | 80% | 38,551 psi | 66% | 2677 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 34,563 psi | 59% | 2549 fps | 95.8% |
| ReloadSwiss RS 70 | 51.2 gr | 84% | 36,506 psi | 62% | 2612 fps | 95.8% |
| Rottweil R 902 | <<locked>> | 80% | 45,701 psi | 78% | 2657 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 39,349 psi | 67% | 2585 fps | 99.2% |
| Rottweil R 905 | <<locked>> | 96% | 45,498 psi | 77% | 2762 fps | 95% |
| Rottweil R 907 | <<locked>> | 84% | 42,322 psi | 72% | 2615 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 80% | 36,245 psi | 62% | 2490 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 48,950 psi | 83% | 2736 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 43,903 psi | 75% | 2644 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 86% | 41,626 psi | 71% | 2625 fps | 95.8% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 40,350 psi | 69% | 2638 fps | 98.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 47,688 psi | 81% | 2730 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 49,240 psi | 84% | 2651 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 41,278 psi | 70% | 2520 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 40,408 psi | 69% | 2539 fps | 95.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 48,124 psi | 82% | 2815 fps | 95.7% |
| Somchem S335 | <<locked>> | 80% | 48,907 psi | 83% | 2651 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 49,574 psi | 84% | 2749 fps | 99.9% |
| Somchem S355 | <<locked>> | 80% | 39,943 psi | 68% | 2589 fps | 99.1% |
| Somchem S365 | <<locked>> | 80% | 29,254 psi | 50% | 2428 fps | 97.5% |
| Somchem S385 | <<locked>> | 94% | 43,453 psi | 74% | 2694 fps | 95.4% |
| Vihtavuori N133 | <<locked>> | 80% | 49,661 psi | 85% | 2641 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 45,701 psi | 78% | 2635 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 46,093 psi | 78% | 2644 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 38,072 psi | 65% | 2523 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 80% | 34,055 psi | 58% | 2480 fps | 95.8% |
| Vihtavuori N540 | <<locked>> | 80% | 44,483 psi | 76% | 2638 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 33,591 psi | 57% | 2480 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 86% | 30,734 psi | 52% | 2470 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,620 psi | 57% | 2454 fps | 97.9% |
| Winchester 760 | <<locked>> | 86% | 42,351 psi | 72% | 2697 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 90% | 28,558 psi | 49% | 2480 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 80% | 47,442 psi | 81% | 2736 fps | 99.9% |
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 | 145gr | Speer Hot-Cor. Alliant Reloder-26 delivers the highest muzzle velocity at 2,959 fps; across all powders the maximum-charge window runs from 1,762 fps to 2,959 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 61–90 %, leaving at least 10 % headroom. The 145.0 gr projectile in 0.284" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-19, 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. ReloadSwiss RS 70, Alliant Reloder-17, ReloadSwiss RS 60 rank at the top here: for .280 Rem. with the .284 | 145gr | Speer Hot-Cor 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.