Load Specifications
Load data in caliber .280 Rem. with .284 | 156gr | Lapua Naturalis bullet and 82 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-16, ReloadSwiss RS 70 and Ramshot Hunter.
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% | 51,256 psi | 87% | 2602 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 51,996 psi | 89% | 2641 fps | 97.4% |
| Accurate 3100ᴾ | <<locked>> | 100% | 48,153 psi | 82% | 2671 fps | 98.4% |
| Accurate 4064 | <<locked>> | 84% | 51,532 psi | 88% | 2651 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 50,575 psi | 86% | 2726 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 86% | 51,387 psi | 87% | 2667 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 98% | 51,706 psi | 88% | 2756 fps | 96.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 53,040 psi | 90% | 2828 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 51,895 psi | 88% | 2694 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 51,909 psi | 88% | 2707 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 94% | 51,387 psi | 87% | 2779 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 90% | 52,098 psi | 89% | 2805 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 50,662 psi | 86% | 2743 fps | 96.5% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 47,805 psi | 81% | 2740 fps | 95.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 45,266 psi | 77% | 2694 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 39,769 psi | 68% | 2602 fps | 97% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 50,850 psi | 87% | 2864 fps | 99.8% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 52,982 psi | 90% | 2723 fps | 99.9% |
| Bofors RP3 | <<locked>> | 86% | 52,402 psi | 89% | 2707 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 47,805 psi | 81% | 2740 fps | 95.9% |
| Bofors RP7 | <<locked>> | 90% | 52,243 psi | 89% | 2680 fps | 97.7% |
| Hodgdon H380 | <<locked>> | 86% | 52,852 psi | 90% | 2717 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 92% | 52,678 psi | 90% | 2772 fps | 98.4% |
| Hodgdon H4350 | <<locked>> | 90% | 53,069 psi | 90% | 2733 fps | 97.3% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 51,387 psi | 87% | 2710 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 50,183 psi | 85% | 2700 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 52,605 psi | 90% | 2802 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,318 psi | 62% | 1680 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 51,590 psi | 88% | 2671 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 50,792 psi | 86% | 2651 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 82% | 50,270 psi | 86% | 2625 fps | 97.8% |
| IMR 4350 | <<locked>> | 94% | 52,330 psi | 89% | 2707 fps | 97.8% |
| IMR 4451 Enduron | <<locked>> | 88% | 50,459 psi | 86% | 2654 fps | 97.8% |
| IMR 4831 | <<locked>> | 94% | 51,140 psi | 87% | 2723 fps | 99.7% |
| IMR 4895 | <<locked>> | 82% | 50,270 psi | 86% | 2687 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 52,736 psi | 90% | 2641 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 51,111 psi | 87% | 2651 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 50,560 psi | 86% | 2657 fps | 98.9% |
| Lovex S070 | <<locked>> | 92% | 51,445 psi | 88% | 2694 fps | 98.3% |
| Lovex S071ᴾ | <<locked>> | 100% | 40,292 psi | 69% | 2530 fps | 96.6% |
| Norma 201 | <<locked>> | 82% | 52,605 psi | 90% | 2661 fps | 100% |
| Norma 202 | <<locked>> | 82% | 53,113 psi | 90% | 2661 fps | 100% |
| Norma 203B | <<locked>> | 84% | 51,271 psi | 87% | 2694 fps | 100% |
| Norma 204 | <<locked>> | 94% | 52,547 psi | 89% | 2749 fps | 96.6% |
| Norma MRPᴾ | <<locked>> | 100% | 50,517 psi | 86% | 2822 fps | 98% |
| Norma URP | <<locked>> | 94% | 52,924 psi | 90% | 2766 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 84% | 51,561 psi | 88% | 2720 fps | 100% |
| Ramshot Hunter | <<locked>> | 94% | 51,300 psi | 87% | 2759 fps | 98.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,825 psi | 63% | 1716 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 52,997 psi | 90% | 2700 fps | 98.8% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 52,373 psi | 89% | 2769 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 51,851 psi | 88% | 2805 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 50,111 psi | 85% | 2746 fps | 99.5% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 52,373 psi | 89% | 2822 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 84% | 53,142 psi | 90% | 2661 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 52,605 psi | 90% | 2703 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 52,997 psi | 90% | 2782 fps | 97.1% |
| Rottweil R 907 | <<locked>> | 90% | 52,243 psi | 89% | 2680 fps | 97.7% |
| Shooters World Long Rifle | <<locked>> | 90% | 50,560 psi | 86% | 2657 fps | 98.9% |
| Shooters World Precision | <<locked>> | 84% | 51,111 psi | 87% | 2651 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 51,445 psi | 88% | 2694 fps | 98.3% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 50,198 psi | 85% | 2703 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 51,837 psi | 88% | 2684 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 50,763 psi | 86% | 2556 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 50,328 psi | 86% | 2612 fps | 97.8% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 52,504 psi | 89% | 2776 fps | 97% |
| Somchem S355 | <<locked>> | 88% | 52,750 psi | 90% | 2700 fps | 100% |
| Somchem S365 | <<locked>> | 96% | 51,242 psi | 87% | 2769 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 50,589 psi | 86% | 2710 fps | 97.4% |
| Vihtavuori N135 | <<locked>> | 84% | 53,156 psi | 90% | 2625 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 50,270 psi | 86% | 2595 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 50,560 psi | 86% | 2631 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 51,547 psi | 88% | 2710 fps | 99.7% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 46,499 psi | 79% | 2628 fps | 96% |
| Vihtavuori N540 | <<locked>> | 84% | 51,634 psi | 88% | 2638 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 50,850 psi | 87% | 2717 fps | 99.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 50,444 psi | 86% | 2769 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 51,169 psi | 87% | 2684 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 52,968 psi | 90% | 2776 fps | 98.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 40,843 psi | 70% | 2733 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 51,866 psi | 88% | 2694 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 50,372 psi | 86% | 2697 fps | 96.2% |
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% | 48,298 psi | 82% | 2556 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 45,948 psi | 78% | 2536 fps | 96.1% |
| Accurate 3100 | <<locked>> | 92% | 37,072 psi | 63% | 2464 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 45,672 psi | 78% | 2559 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 34,127 psi | 58% | 2411 fps | 96.5% |
| ADI AR 2208 | <<locked>> | 80% | 42,743 psi | 73% | 2520 fps | 99% |
| ADI AR 2209 | <<locked>> | 96% | 48,530 psi | 83% | 2700 fps | 95.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 46,296 psi | 79% | 2713 fps | 99.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 43,105 psi | 73% | 2546 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 46,050 psi | 78% | 2608 fps | 99.5% |
| Alliant Reloder-16 | 41.8 gr | 80% | 33,678 psi | 57% | 2418 fps | 96.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 37,536 psi | 64% | 2536 fps | 99.1% |
| Alliant Reloder-19 | <<locked>> | 96% | 47,790 psi | 81% | 2690 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 98% | 44,788 psi | 76% | 2684 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 84% | 28,123 psi | 48% | 2293 fps | 95.6% |
| Alliant Reloder-25 | <<locked>> | 96% | 35,375 psi | 60% | 2493 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 88% | 33,881 psi | 58% | 2507 fps | 95.7% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 49,777 psi | 85% | 2674 fps | 99.6% |
| Bofors RP3 | <<locked>> | 80% | 43,395 psi | 74% | 2559 fps | 99.9% |
| Bofors RP5 | <<locked>> | 98% | 44,788 psi | 76% | 2684 fps | 95.1% |
| Bofors RP7 | <<locked>> | 82% | 41,104 psi | 70% | 2480 fps | 95% |
| Hodgdon H380 | <<locked>> | 80% | 43,656 psi | 74% | 2559 fps | 98.4% |
| Hodgdon H414 | <<locked>> | 84% | 40,770 psi | 69% | 2556 fps | 95.7% |
| Hodgdon H4350 | <<locked>> | 84% | 43,947 psi | 75% | 2572 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 31,241 psi | 53% | 2323 fps | 97.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 47,079 psi | 80% | 2651 fps | 100% |
| Hodgdon Superformance | <<locked>> | 86% | 42,728 psi | 73% | 2625 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,238 psi | 46% | 1499 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 48,689 psi | 83% | 2625 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 44,947 psi | 77% | 2549 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 80% | 47,268 psi | 80% | 2572 fps | 97.3% |
| IMR 4350 | <<locked>> | 86% | 41,234 psi | 70% | 2507 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 39,798 psi | 68% | 2457 fps | 95.1% |
| IMR 4831 | <<locked>> | 80% | 32,909 psi | 56% | 2369 fps | 96.1% |
| IMR 4895 | <<locked>> | 80% | 47,181 psi | 80% | 2638 fps | 99.9% |
| Lovex S060 | <<locked>> | 80% | 49,574 psi | 84% | 2592 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 45,339 psi | 77% | 2556 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 37,681 psi | 64% | 2415 fps | 96.1% |
| Lovex S070 | <<locked>> | 82% | 38,116 psi | 65% | 2441 fps | 95% |
| Lovex S071 | <<locked>> | 96% | 35,737 psi | 61% | 2434 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 49,705 psi | 85% | 2615 fps | 100% |
| Norma 202 | <<locked>> | 80% | 49,850 psi | 85% | 2615 fps | 100% |
| Norma 203B | <<locked>> | 80% | 45,455 psi | 77% | 2598 fps | 99.7% |
| Norma 204 | <<locked>> | 90% | 46,195 psi | 79% | 2641 fps | 95.1% |
| Norma MRP | <<locked>> | 94% | 41,452 psi | 71% | 2648 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 33,953 psi | 58% | 2405 fps | 96.3% |
| Ramshot Big Game | <<locked>> | 80% | 45,150 psi | 77% | 2612 fps | 99.6% |
| Ramshot Hunter | 46.5 gr | 84% | 37,449 psi | 64% | 2493 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,528 psi | 47% | 1532 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,743 psi | 74% | 2539 fps | 97.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 49,052 psi | 84% | 2713 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 39,842 psi | 68% | 2592 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 33,504 psi | 57% | 2421 fps | 95.9% |
| ReloadSwiss RS 70 | 46.8 gr | 82% | 35,244 psi | 60% | 2474 fps | 95.7% |
| Rottweil R 902 | <<locked>> | 80% | 47,427 psi | 81% | 2572 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 40,843 psi | 70% | 2507 fps | 99.5% |
| Rottweil R 905 | <<locked>> | 96% | 46,731 psi | 80% | 2674 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 82% | 41,104 psi | 70% | 2480 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 80% | 37,681 psi | 64% | 2415 fps | 96.1% |
| Shooters World Precision | <<locked>> | 80% | 45,339 psi | 77% | 2556 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 38,116 psi | 65% | 2441 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,466 psi | 71% | 2552 fps | 99.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 48,747 psi | 83% | 2635 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,482 psi | 72% | 2431 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 39,218 psi | 67% | 2408 fps | 95.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 46,296 psi | 79% | 2671 fps | 95.6% |
| Somchem S355 | <<locked>> | 80% | 41,423 psi | 71% | 2507 fps | 99.5% |
| Somchem S365 | <<locked>> | 80% | 30,806 psi | 52% | 2372 fps | 98.5% |
| Somchem S385 | <<locked>> | 92% | 42,018 psi | 72% | 2559 fps | 95.3% |
| Vihtavuori N135 | <<locked>> | 80% | 47,181 psi | 80% | 2539 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 47,166 psi | 80% | 2549 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 39,291 psi | 67% | 2441 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 80% | 35,317 psi | 60% | 2405 fps | 96.7% |
| Vihtavuori N165 | <<locked>> | 98% | 43,584 psi | 74% | 2575 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 80% | 45,585 psi | 78% | 2543 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 34,853 psi | 59% | 2408 fps | 96.3% |
| Vihtavuori N555 | <<locked>> | 84% | 30,516 psi | 52% | 2369 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,780 psi | 59% | 2382 fps | 98.6% |
| Winchester 760 | <<locked>> | 84% | 40,988 psi | 70% | 2562 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 88% | 28,108 psi | 48% | 2372 fps | 96.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 48,428 psi | 82% | 2638 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 47,079 psi | 80% | 2641 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 97 powders for .280 Rem. loaded with the .284 | 156gr | Lapua Naturalis. Alliant Reloder-26 delivers the highest muzzle velocity at 2,864 fps; across all powders the maximum-charge window runs from 1,680 fps to 2,864 fps. Accurate 3100 gives the best case fill at 100 %, and 97 of the 97 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 155.0 gr projectile in 0.284" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, ADI AR 2213 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-16, ReloadSwiss RS 70, Ramshot Hunter rank at the top here: for .280 Rem. with the .284 | 156gr | Lapua Naturalis they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate MAGPRO, ADI AR 2213, Bofors RP15 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.