Load Specifications
Load data in caliber .280 Rem. with .284 | 160gr | Winchester FailSafe bullet and 84 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-26 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.
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>> | 82% | 51,082 psi | 87% | 2575 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 52,301 psi | 89% | 2625 fps | 98% |
| Accurate 3100ᴾ | <<locked>> | 100% | 48,646 psi | 83% | 2657 fps | 98.8% |
| Accurate 4064 | <<locked>> | 84% | 51,184 psi | 87% | 2621 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 51,082 psi | 87% | 2710 fps | 99.9% |
| Accurate High Countryᴾ | <<locked>> | 100% | 53,069 psi | 90% | 2844 fps | 96.7% |
| ADI AR 2208 | <<locked>> | 86% | 51,967 psi | 88% | 2651 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 52,373 psi | 89% | 2746 fps | 97.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 50,343 psi | 86% | 2759 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 52,286 psi | 89% | 2746 fps | 97.3% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 52,286 psi | 89% | 2746 fps | 97.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 52,330 psi | 89% | 2674 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 52,431 psi | 89% | 2690 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 52,243 psi | 89% | 2769 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 53,026 psi | 90% | 2792 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 51,547 psi | 88% | 2736 fps | 97.2% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 48,486 psi | 83% | 2730 fps | 96.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 45,701 psi | 78% | 2677 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 40,089 psi | 68% | 2595 fps | 97.8% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 51,982 psi | 88% | 2858 fps | 100% |
| Bofors RP3 | <<locked>> | 86% | 52,968 psi | 90% | 2690 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 48,486 psi | 83% | 2730 fps | 96.8% |
| Bofors RP7 | <<locked>> | 90% | 52,504 psi | 89% | 2667 fps | 98.2% |
| Hodgdon H380 | <<locked>> | 84% | 49,879 psi | 85% | 2648 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 90% | 50,096 psi | 85% | 2707 fps | 98.4% |
| Hodgdon H4350 | <<locked>> | 88% | 50,618 psi | 86% | 2674 fps | 97.3% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 52,257 psi | 89% | 2697 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 51,097 psi | 87% | 2687 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 49,879 psi | 85% | 2736 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,216 psi | 62% | 1663 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 52,243 psi | 89% | 2654 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 51,343 psi | 87% | 2635 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 50,792 psi | 86% | 2615 fps | 98.4% |
| IMR 4350 | <<locked>> | 94% | 53,026 psi | 90% | 2697 fps | 98.3% |
| IMR 4451 Enduron | <<locked>> | 88% | 51,213 psi | 87% | 2648 fps | 98.4% |
| IMR 4831 | <<locked>> | 94% | 51,779 psi | 88% | 2707 fps | 99.9% |
| IMR 4895 | <<locked>> | 82% | 50,444 psi | 86% | 2667 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 53,069 psi | 90% | 2621 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 51,445 psi | 88% | 2631 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 50,995 psi | 87% | 2644 fps | 99.3% |
| Lovex S070 | <<locked>> | 92% | 51,924 psi | 88% | 2680 fps | 98.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 40,379 psi | 69% | 2513 fps | 97.2% |
| Norma 201 | <<locked>> | 82% | 52,895 psi | 90% | 2641 fps | 100% |
| Norma 203B | <<locked>> | 84% | 51,721 psi | 88% | 2677 fps | 100% |
| Norma 204 | <<locked>> | 92% | 50,212 psi | 85% | 2690 fps | 96.7% |
| Norma MRPᴾ | <<locked>> | 100% | 51,343 psi | 87% | 2812 fps | 98.6% |
| Norma URP | <<locked>> | 92% | 50,372 psi | 86% | 2700 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 84% | 52,098 psi | 89% | 2700 fps | 100% |
| Ramshot Hunter | <<locked>> | 94% | 52,301 psi | 89% | 2749 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,666 psi | 62% | 1699 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 50,125 psi | 85% | 2635 fps | 98.7% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 53,055 psi | 90% | 2753 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 52,794 psi | 90% | 2789 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 50,749 psi | 86% | 2733 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 49,676 psi | 85% | 2756 fps | 99.6% |
| Rottweil R 902 | <<locked>> | 82% | 50,198 psi | 85% | 2592 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 52,794 psi | 90% | 2684 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 50,981 psi | 87% | 2671 fps | 95.8% |
| Rottweil R 905 | <<locked>> | 98% | 50,589 psi | 86% | 2720 fps | 97.2% |
| Rottweil R 907 | <<locked>> | 90% | 52,504 psi | 89% | 2667 fps | 98.2% |
| Shooters World Long Rifle | <<locked>> | 90% | 50,995 psi | 87% | 2644 fps | 99.3% |
| Shooters World Precision | <<locked>> | 84% | 51,445 psi | 88% | 2631 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 51,924 psi | 88% | 2680 fps | 98.7% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 50,995 psi | 87% | 2690 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 52,373 psi | 89% | 2667 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 51,300 psi | 87% | 2539 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 50,401 psi | 86% | 2595 fps | 98.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 50,154 psi | 85% | 2717 fps | 97.1% |
| Somchem S355 | <<locked>> | 88% | 53,069 psi | 90% | 2680 fps | 100% |
| Somchem S365 | <<locked>> | 96% | 52,185 psi | 89% | 2753 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 51,358 psi | 87% | 2700 fps | 98.1% |
| Vihtavuori N135 | <<locked>> | 82% | 50,357 psi | 86% | 2562 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 50,763 psi | 86% | 2575 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 50,879 psi | 87% | 2612 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 52,301 psi | 89% | 2694 fps | 99.9% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 47,210 psi | 80% | 2621 fps | 96.8% |
| Vihtavuori N540 | <<locked>> | 84% | 51,982 psi | 88% | 2615 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 51,430 psi | 88% | 2700 fps | 99.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 51,024 psi | 87% | 2753 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 52,054 psi | 89% | 2671 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 50,444 psi | 86% | 2710 fps | 98.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 41,147 psi | 70% | 2720 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 52,388 psi | 89% | 2674 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 51,503 psi | 88% | 2694 fps | 97.1% |
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% | 47,805 psi | 81% | 2530 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 46,166 psi | 79% | 2526 fps | 96.8% |
| Accurate 3100 | <<locked>> | 90% | 34,592 psi | 59% | 2392 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 45,266 psi | 77% | 2533 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 34,040 psi | 58% | 2392 fps | 97% |
| Accurate High Country | <<locked>> | 98% | 49,588 psi | 84% | 2785 fps | 95.9% |
| ADI AR 2208 | <<locked>> | 80% | 43,207 psi | 74% | 2507 fps | 99.4% |
| ADI AR 2209 | <<locked>> | 94% | 45,992 psi | 78% | 2635 fps | 95.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 46,847 psi | 80% | 2700 fps | 99.8% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 43,163 psi | 73% | 2582 fps | 95% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 43,163 psi | 73% | 2582 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 43,207 psi | 74% | 2526 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 46,412 psi | 79% | 2592 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 80% | 33,620 psi | 57% | 2402 fps | 97.1% |
| Alliant Reloder-17 | <<locked>> | 80% | 37,739 psi | 64% | 2520 fps | 99.5% |
| Alliant Reloder-19 | <<locked>> | 94% | 45,411 psi | 77% | 2628 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 96% | 42,598 psi | 73% | 2621 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 82% | 26,136 psi | 44% | 2218 fps | 95.2% |
| Alliant Reloder-25 | <<locked>> | 94% | 33,228 psi | 57% | 2428 fps | 95% |
| Alliant Reloder-26 | 50.7 gr | 86% | 31,691 psi | 54% | 2434 fps | 95.4% |
| Bofors RP3 | <<locked>> | 80% | 43,265 psi | 74% | 2536 fps | 100% |
| Bofors RP5 | <<locked>> | 96% | 42,598 psi | 73% | 2621 fps | 95.1% |
| Bofors RP7 | <<locked>> | 82% | 40,973 psi | 70% | 2461 fps | 95.6% |
| Hodgdon H380 | <<locked>> | 80% | 43,859 psi | 75% | 2543 fps | 98.8% |
| Hodgdon H414 | <<locked>> | 82% | 38,435 psi | 65% | 2487 fps | 95.6% |
| Hodgdon H4350 | <<locked>> | 82% | 41,597 psi | 71% | 2510 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 31,053 psi | 53% | 2303 fps | 97.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 47,616 psi | 81% | 2635 fps | 100% |
| Hodgdon Superformance | 51 gr | 84% | 40,176 psi | 68% | 2552 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,035 psi | 46% | 1486 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 49,037 psi | 83% | 2605 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 45,411 psi | 77% | 2536 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 80% | 47,703 psi | 81% | 2562 fps | 97.8% |
| IMR 4350 | <<locked>> | 84% | 38,943 psi | 66% | 2444 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 80% | 39,871 psi | 68% | 2441 fps | 95.8% |
| IMR 4831 | <<locked>> | 80% | 32,909 psi | 56% | 2349 fps | 96.7% |
| IMR 4895 | <<locked>> | 80% | 47,587 psi | 81% | 2621 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 50,125 psi | 85% | 2575 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 45,571 psi | 78% | 2539 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 37,492 psi | 64% | 2395 fps | 96.6% |
| Lovex S070 | <<locked>> | 82% | 38,101 psi | 65% | 2428 fps | 95.6% |
| Lovex S071 | <<locked>> | 96% | 35,679 psi | 61% | 2415 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 49,647 psi | 85% | 2592 fps | 100% |
| Norma 203B | <<locked>> | 80% | 45,788 psi | 78% | 2582 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 43,801 psi | 75% | 2575 fps | 95% |
| Norma MRP | <<locked>> | 92% | 39,088 psi | 67% | 2579 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 34,055 psi | 58% | 2388 fps | 96.9% |
| Ramshot Big Game | <<locked>> | 80% | 45,600 psi | 78% | 2598 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 82% | 35,230 psi | 60% | 2425 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,514 psi | 47% | 1522 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,976 psi | 75% | 2526 fps | 97.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 49,705 psi | 85% | 2700 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 40,103 psi | 68% | 2575 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 33,475 psi | 57% | 2402 fps | 96.4% |
| ReloadSwiss RS 70 | 46.7 gr | 80% | 33,054 psi | 56% | 2405 fps | 95.5% |
| Rottweil R 902 | <<locked>> | 80% | 47,355 psi | 81% | 2549 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 40,886 psi | 70% | 2487 fps | 99.7% |
| Rottweil R 904 | <<locked>> | 94% | 47,819 psi | 81% | 2615 fps | 95% |
| Rottweil R 905 | <<locked>> | 94% | 44,266 psi | 75% | 2612 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 82% | 40,973 psi | 70% | 2461 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 37,492 psi | 64% | 2395 fps | 96.6% |
| Shooters World Precision | <<locked>> | 80% | 45,571 psi | 78% | 2539 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 38,101 psi | 65% | 2428 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,843 psi | 71% | 2536 fps | 99.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 49,197 psi | 84% | 2618 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,670 psi | 73% | 2411 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 39,015 psi | 66% | 2388 fps | 95.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 43,859 psi | 75% | 2605 fps | 95.5% |
| Somchem S355 | <<locked>> | 80% | 41,336 psi | 70% | 2487 fps | 99.7% |
| Somchem S365 | <<locked>> | 80% | 30,545 psi | 52% | 2346 fps | 98.8% |
| Somchem S385 | <<locked>> | 90% | 39,682 psi | 68% | 2493 fps | 95.2% |
| Vihtavuori N135 | <<locked>> | 80% | 47,355 psi | 81% | 2520 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 47,645 psi | 81% | 2533 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 39,450 psi | 67% | 2425 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 80% | 35,505 psi | 60% | 2392 fps | 97.3% |
| Vihtavuori N165 | <<locked>> | 96% | 41,394 psi | 70% | 2516 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 80% | 45,876 psi | 78% | 2526 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 34,853 psi | 59% | 2388 fps | 96.9% |
| Vihtavuori N555 | <<locked>> | 82% | 28,369 psi | 48% | 2290 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,751 psi | 59% | 2365 fps | 99% |
| Winchester 760 | <<locked>> | 82% | 38,696 psi | 66% | 2493 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 86% | 26,121 psi | 44% | 2293 fps | 95.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 48,878 psi | 83% | 2621 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 44,701 psi | 76% | 2582 fps | 95.4% |
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 84 powders for .280 Rem. loaded with the .284 | 160gr | Winchester FailSafe. Alliant Reloder-26 delivers the highest muzzle velocity at 2,858 fps; across all powders the maximum-charge window runs from 1,663 fps to 2,858 fps. Accurate 3100 gives the best case fill at 100 %, and 84 of the 84 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 160.0 gr projectile in 0.284" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate High Country, 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. ReloadSwiss RS 70, Alliant Reloder-26, Hodgdon Superformance rank at the top here: for .280 Rem. with the .284 | 160gr | Winchester FailSafe 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.