Load Specifications
Load data in caliber .280 Rem. with .284 | 151gr | Warner Tool Co. Flat Line bullet and 91 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.
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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>> | 86% | 51,880 psi | 88% | 2648 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 50,836 psi | 87% | 2644 fps | 96.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 42,250 psi | 72% | 2602 fps | 96.6% |
| Accurate 4064 | <<locked>> | 88% | 51,924 psi | 88% | 2697 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 51,372 psi | 87% | 2772 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 84% | 52,112 psi | 89% | 2720 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 88% | 50,169 psi | 85% | 2677 fps | 99.6% |
| ADI Benchmark 8208 | <<locked>> | 82% | 51,198 psi | 87% | 2674 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 51,953 psi | 88% | 2651 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 51,692 psi | 88% | 2835 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 50,183 psi | 85% | 2700 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 50,560 psi | 86% | 2717 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 98% | 52,663 psi | 90% | 2828 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 92% | 50,386 psi | 86% | 2812 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 40,393 psi | 69% | 2631 fps | 99.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 45,208 psi | 77% | 2792 fps | 98.7% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 51,677 psi | 88% | 2733 fps | 99.6% |
| Bofors RP3 | <<locked>> | 88% | 50,401 psi | 86% | 2713 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 50,647 psi | 86% | 2680 fps | 96.9% |
| Hodgdon Benchmark | <<locked>> | 82% | 52,997 psi | 90% | 2661 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 50,502 psi | 86% | 2703 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 51,285 psi | 87% | 2723 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 94% | 50,952 psi | 87% | 2772 fps | 97.6% |
| Hodgdon H4350 | <<locked>> | 92% | 51,634 psi | 88% | 2736 fps | 96.4% |
| Hodgdon H4895 | <<locked>> | 84% | 52,605 psi | 90% | 2730 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 52,446 psi | 89% | 2759 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 52,243 psi | 89% | 2766 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 51,126 psi | 87% | 2802 fps | 97.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,694 psi | 61% | 1680 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 50,604 psi | 86% | 2687 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 52,808 psi | 90% | 2717 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 52,837 psi | 90% | 2710 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 86% | 52,576 psi | 90% | 2687 fps | 97.7% |
| IMR 4350 | <<locked>> | 96% | 50,995 psi | 87% | 2710 fps | 97% |
| IMR 4451 Enduron | <<locked>> | 92% | 52,431 psi | 89% | 2713 fps | 97.6% |
| IMR 4831 | <<locked>> | 98% | 51,982 psi | 88% | 2766 fps | 99.6% |
| IMR 4895 | <<locked>> | 86% | 51,866 psi | 88% | 2746 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 82% | 51,198 psi | 87% | 2674 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 52,025 psi | 89% | 2700 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 51,938 psi | 88% | 2654 fps | 99.9% |
| Lovex S062 | <<locked>> | 88% | 52,765 psi | 90% | 2707 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 51,779 psi | 88% | 2707 fps | 98.7% |
| Lovex S070 | <<locked>> | 96% | 52,736 psi | 90% | 2743 fps | 98% |
| Norma 201 | <<locked>> | 84% | 51,082 psi | 87% | 2671 fps | 100% |
| Norma 202 | <<locked>> | 84% | 51,445 psi | 88% | 2671 fps | 100% |
| Norma 203B | <<locked>> | 88% | 53,011 psi | 90% | 2753 fps | 100% |
| Norma MRPᴾ | <<locked>> | 100% | 44,947 psi | 77% | 2743 fps | 96% |
| Norma URP | <<locked>> | 96% | 50,749 psi | 86% | 2762 fps | 99.4% |
| Ramshot Big Game | <<locked>> | 86% | 50,082 psi | 85% | 2726 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 98% | 52,823 psi | 90% | 2808 fps | 98.6% |
| Ramshot TAC | <<locked>> | 82% | 51,184 psi | 87% | 2690 fps | 98.8% |
| Ramshot Wild Boar | <<locked>> | 82% | 50,894 psi | 87% | 2707 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,100 psi | 61% | 1716 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 51,401 psi | 88% | 2703 fps | 98.1% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 50,792 psi | 86% | 2779 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 50,125 psi | 85% | 2812 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 51,082 psi | 87% | 2795 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 50,778 psi | 86% | 2822 fps | 99.2% |
| Rottweil R 901 | <<locked>> | 82% | 52,199 psi | 89% | 2654 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 51,706 psi | 88% | 2671 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 50,241 psi | 86% | 2703 fps | 100% |
| Rottweil R 907 | <<locked>> | 92% | 50,647 psi | 86% | 2680 fps | 96.9% |
| Shooters World Long Rifle | <<locked>> | 94% | 51,779 psi | 88% | 2707 fps | 98.7% |
| Shooters World Match Rifle | <<locked>> | 84% | 52,025 psi | 89% | 2700 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 52,765 psi | 90% | 2707 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 52,736 psi | 90% | 2743 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 52,025 psi | 89% | 2766 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 49,719 psi | 85% | 2667 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 50,792 psi | 86% | 2697 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 52,504 psi | 89% | 2615 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 52,663 psi | 90% | 2615 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 51,953 psi | 88% | 2661 fps | 97.6% |
| Somchem S335 | <<locked>> | 84% | 51,938 psi | 88% | 2612 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 52,692 psi | 90% | 2710 fps | 99.9% |
| Somchem S355 | <<locked>> | 90% | 50,705 psi | 86% | 2700 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 52,054 psi | 89% | 2815 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 48,530 psi | 83% | 2703 fps | 96.4% |
| Vihtavuori N133 | <<locked>> | 84% | 52,837 psi | 90% | 2602 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 51,503 psi | 88% | 2641 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 52,083 psi | 89% | 2654 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 52,156 psi | 89% | 2687 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 52,968 psi | 90% | 2759 fps | 99.6% |
| Vihtavuori N530 | <<locked>> | 82% | 51,634 psi | 88% | 2674 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 50,154 psi | 85% | 2648 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 52,127 psi | 89% | 2766 fps | 99.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 44,396 psi | 76% | 2703 fps | 99.1% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 49,748 psi | 85% | 2687 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 51,488 psi | 88% | 2720 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 50,952 psi | 87% | 2772 fps | 97.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 36,158 psi | 62% | 2638 fps | 99.3% |
| Winchester StaBALL Match | <<locked>> | 84% | 50,372 psi | 86% | 2700 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% | 42,786 psi | 73% | 2513 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 44,759 psi | 76% | 2539 fps | 95.1% |
| Accurate 3100 | <<locked>> | 98% | 39,537 psi | 67% | 2549 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 40,451 psi | 69% | 2513 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 31,778 psi | 54% | 2392 fps | 95% |
| ADI AR 2206H | <<locked>> | 80% | 46,137 psi | 79% | 2621 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 80% | 39,262 psi | 67% | 2477 fps | 98% |
| ADI Benchmark 8208 | <<locked>> | 80% | 48,182 psi | 82% | 2628 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 48,631 psi | 83% | 2605 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 42,061 psi | 72% | 2657 fps | 98.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 38,943 psi | 66% | 2497 fps | 99.1% |
| Alliant Reloder-15 | <<locked>> | 80% | 41,785 psi | 71% | 2559 fps | 98.6% |
| Alliant Reloder-16 | <<locked>> | 82% | 32,198 psi | 55% | 2405 fps | 95.1% |
| Alliant Reloder-17 | 43.3 gr | 80% | 33,620 psi | 57% | 2470 fps | 97.6% |
| Alliant Reloder-23 | <<locked>> | 90% | 29,631 psi | 50% | 2365 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 92% | 34,069 psi | 58% | 2536 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 45,266 psi | 77% | 2628 fps | 98.8% |
| Bofors RP3 | <<locked>> | 80% | 38,566 psi | 66% | 2503 fps | 99.1% |
| Bofors RP7 | <<locked>> | 88% | 44,831 psi | 76% | 2579 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 49,908 psi | 85% | 2615 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 47,224 psi | 80% | 2651 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 39,479 psi | 67% | 2507 fps | 97% |
| Hodgdon H414 | <<locked>> | 88% | 41,698 psi | 71% | 2605 fps | 95.4% |
| Hodgdon H4350 | <<locked>> | 90% | 48,312 psi | 82% | 2677 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 46,557 psi | 79% | 2631 fps | 99.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 27,673 psi | 47% | 2257 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 42,525 psi | 72% | 2605 fps | 99.7% |
| Hodgdon Superformance | <<locked>> | 90% | 44,324 psi | 75% | 2677 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,542 psi | 45% | 1499 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 44,454 psi | 76% | 2582 fps | 99.6% |
| IMR 3031 | <<locked>> | 80% | 46,398 psi | 79% | 2621 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,220 psi | 70% | 2510 fps | 98.6% |
| IMR 4166 Enduron | <<locked>> | 80% | 43,642 psi | 74% | 2530 fps | 95.8% |
| IMR 4350 | <<locked>> | 92% | 44,889 psi | 76% | 2605 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 86% | 43,569 psi | 74% | 2556 fps | 95.6% |
| IMR 4831 | <<locked>> | 84% | 33,127 psi | 56% | 2408 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 42,830 psi | 73% | 2592 fps | 99.2% |
| IMR 8208 XBR | <<locked>> | 80% | 48,182 psi | 82% | 2628 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 45,281 psi | 77% | 2598 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,035 psi | 78% | 2559 fps | 99.5% |
| Lovex S062 | <<locked>> | 80% | 41,249 psi | 70% | 2516 fps | 99.6% |
| Lovex S065 | <<locked>> | 84% | 38,232 psi | 65% | 2457 fps | 95.7% |
| Lovex S070 | <<locked>> | 88% | 41,118 psi | 70% | 2536 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 45,179 psi | 77% | 2575 fps | 99.9% |
| Norma 202 | <<locked>> | 80% | 45,469 psi | 77% | 2579 fps | 100% |
| Norma 203B | <<locked>> | 80% | 41,162 psi | 70% | 2549 fps | 98.9% |
| Norma MRP | <<locked>> | 98% | 42,221 psi | 72% | 2687 fps | 95.1% |
| Norma URP | <<locked>> | 82% | 32,271 psi | 55% | 2398 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 40,814 psi | 69% | 2566 fps | 98.7% |
| Ramshot Hunter | <<locked>> | 88% | 38,218 psi | 65% | 2539 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 47,993 psi | 82% | 2635 fps | 98.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 47,601 psi | 81% | 2654 fps | 99.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,992 psi | 46% | 1535 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 39,668 psi | 68% | 2487 fps | 95.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 44,048 psi | 75% | 2661 fps | 99% |
| ReloadSwiss RS 60 | 43.3 gr | 80% | 35,766 psi | 61% | 2536 fps | 99.8% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 33,765 psi | 57% | 2461 fps | 95.4% |
| ReloadSwiss RS 70 | 47.3 gr | 86% | 36,245 psi | 62% | 2523 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 49,124 psi | 84% | 2608 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 42,975 psi | 73% | 2530 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 80% | 36,303 psi | 62% | 2448 fps | 98.5% |
| Rottweil R 907 | <<locked>> | 88% | 44,831 psi | 76% | 2579 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 84% | 38,232 psi | 65% | 2457 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 45,281 psi | 77% | 2598 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 41,249 psi | 70% | 2516 fps | 99.6% |
| Shooters World SW4350 | <<locked>> | 88% | 41,118 psi | 70% | 2536 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,231 psi | 63% | 2497 fps | 98% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 46,470 psi | 79% | 2612 fps | 98.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 44,454 psi | 76% | 2589 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 46,282 psi | 79% | 2520 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,638 psi | 66% | 2395 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 42,772 psi | 73% | 2507 fps | 95.6% |
| Somchem S335 | <<locked>> | 80% | 46,064 psi | 78% | 2526 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 46,064 psi | 78% | 2605 fps | 99.5% |
| Somchem S355 | <<locked>> | 80% | 37,188 psi | 63% | 2454 fps | 98.5% |
| Somchem S365 | <<locked>> | 80% | 27,122 psi | 46% | 2297 fps | 96.4% |
| Somchem S385 | <<locked>> | 98% | 45,252 psi | 77% | 2648 fps | 95.6% |
| Vihtavuori N133 | <<locked>> | 80% | 46,659 psi | 79% | 2513 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 42,482 psi | 72% | 2503 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 43,004 psi | 73% | 2513 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,273 psi | 60% | 2392 fps | 99.1% |
| Vihtavuori N160 | <<locked>> | 82% | 33,576 psi | 57% | 2398 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 48,196 psi | 82% | 2621 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 41,539 psi | 71% | 2507 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 33,011 psi | 56% | 2395 fps | 95% |
| Vihtavuori N555 | <<locked>> | 90% | 31,908 psi | 54% | 2438 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,241 psi | 53% | 2323 fps | 96.9% |
| Winchester 748 | <<locked>> | 80% | 48,095 psi | 82% | 2667 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 41,698 psi | 71% | 2605 fps | 95.4% |
| Winchester StaBALL HD | <<locked>> | 92% | 27,920 psi | 48% | 2385 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 44,019 psi | 75% | 2595 fps | 99.6% |
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 91 powders for .280 Rem. loaded with the .284 | 151gr | Warner Tool Co. Flat Line. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,835 fps; across all powders the maximum-charge window runs from 1,680 fps to 2,835 fps. Accurate 3100 gives the best case fill at 100 %, and 91 of the 91 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 151.0 gr projectile in 0.284" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-23, Alliant Reloder-26 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 | 151gr | Warner Tool Co. Flat Line 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.