Load Specifications
Load data in caliber .280 Rem. with .284 | 174gr | Prvi Partizan PSP BT bullet and 85 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Norma MRP and ReloadSwiss RS 70.
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 2700 | <<locked>> | 82% | 51,227 psi | 87% | 2503 fps | 98.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 51,735 psi | 88% | 2595 fps | 99.6% |
| Accurate 4064 | <<locked>> | 82% | 50,502 psi | 86% | 2497 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 50,575 psi | 86% | 2589 fps | 100% |
| ADI AR 2208 | <<locked>> | 84% | 51,024 psi | 87% | 2526 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 51,822 psi | 88% | 2631 fps | 98% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 52,823 psi | 90% | 2677 fps | 97% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 53,011 psi | 90% | 2684 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 51,300 psi | 87% | 2543 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 51,648 psi | 88% | 2566 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 51,605 psi | 88% | 2644 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 52,286 psi | 89% | 2664 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 50,865 psi | 87% | 2618 fps | 97.9% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 51,474 psi | 88% | 2674 fps | 98.2% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 48,472 psi | 83% | 2612 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 42,380 psi | 72% | 2546 fps | 99.1% |
| Alliant Reloder-26 | <<locked>> | 98% | 51,721 psi | 88% | 2740 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 47,166 psi | 80% | 2602 fps | 97.2% |
| Bofors RP3 | <<locked>> | 84% | 52,069 psi | 89% | 2562 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 51,474 psi | 88% | 2674 fps | 98.2% |
| Bofors RP7 | <<locked>> | 88% | 51,793 psi | 88% | 2549 fps | 98.7% |
| Hodgdon H380 | <<locked>> | 84% | 52,547 psi | 89% | 2575 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 52,939 psi | 90% | 2641 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 88% | 52,765 psi | 90% | 2598 fps | 98.4% |
| Hodgdon H4831 | <<locked>> | 98% | 52,823 psi | 90% | 2621 fps | 96.3% |
| Hodgdon H4831 SC | <<locked>> | 98% | 51,837 psi | 88% | 2608 fps | 96.1% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 51,735 psi | 88% | 2575 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 41,524 psi | 71% | 2569 fps | 96.3% |
| Hodgdon Superformance | <<locked>> | 90% | 52,721 psi | 90% | 2674 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,303 psi | 62% | 1588 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 50,372 psi | 86% | 2510 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 52,692 psi | 90% | 2536 fps | 99.2% |
| IMR 4350 | <<locked>> | 92% | 52,315 psi | 89% | 2575 fps | 98.8% |
| IMR 4451 Enduron | <<locked>> | 86% | 50,125 psi | 85% | 2523 fps | 98.8% |
| IMR 4831 | <<locked>> | 92% | 51,329 psi | 87% | 2589 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 52,953 psi | 90% | 2589 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 51,532 psi | 88% | 2569 fps | 96.2% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 50,140 psi | 85% | 2644 fps | 96.5% |
| Lovex S062 | <<locked>> | 82% | 50,531 psi | 86% | 2503 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 50,125 psi | 85% | 2523 fps | 99.6% |
| Lovex S070 | <<locked>> | 90% | 51,184 psi | 87% | 2562 fps | 99.2% |
| Lovex S071ᴾ | <<locked>> | 100% | 43,149 psi | 73% | 2461 fps | 98.6% |
| Norma 203B | <<locked>> | 82% | 50,952 psi | 87% | 2552 fps | 100% |
| Norma 204 | <<locked>> | 92% | 52,808 psi | 90% | 2625 fps | 98% |
| Norma MRP | <<locked>> | 98% | 50,821 psi | 87% | 2697 fps | 99.1% |
| Norma URP | <<locked>> | 92% | 52,808 psi | 90% | 2625 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 51,387 psi | 87% | 2575 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 50,444 psi | 86% | 2661 fps | 96.9% |
| Ramshot Hunter | <<locked>> | 92% | 51,692 psi | 88% | 2628 fps | 99.6% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 44,831 psi | 76% | 2546 fps | 97.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,101 psi | 63% | 1631 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 52,417 psi | 89% | 2562 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 51,967 psi | 88% | 2657 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 50,241 psi | 86% | 2612 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 52,417 psi | 89% | 2687 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 41,205 psi | 70% | 2559 fps | 97.3% |
| Rottweil R 902 | <<locked>> | 82% | 52,402 psi | 89% | 2513 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 52,286 psi | 89% | 2559 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 50,024 psi | 85% | 2549 fps | 96.5% |
| Rottweil R 905 | <<locked>> | 96% | 49,995 psi | 85% | 2605 fps | 97.9% |
| Rottweil R 907 | <<locked>> | 88% | 51,793 psi | 88% | 2549 fps | 98.7% |
| Shooters World Long Rifle | <<locked>> | 88% | 50,125 psi | 85% | 2523 fps | 99.6% |
| Shooters World Precision | <<locked>> | 82% | 50,531 psi | 86% | 2503 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 51,184 psi | 87% | 2562 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 50,270 psi | 86% | 2566 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 50,212 psi | 85% | 2411 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 52,823 psi | 90% | 2526 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 52,997 psi | 90% | 2651 fps | 98.4% |
| Somchem S355 | <<locked>> | 86% | 52,083 psi | 89% | 2552 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 51,648 psi | 88% | 2549 fps | 96% |
| Somchem S365 | <<locked>> | 94% | 52,011 psi | 89% | 2631 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 50,792 psi | 86% | 2585 fps | 98.6% |
| Vihtavuori N135 | <<locked>> | 82% | 52,736 psi | 90% | 2474 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 52,837 psi | 90% | 2490 fps | 100% |
| Vihtavuori N150 | <<locked>> | 86% | 50,198 psi | 85% | 2487 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 51,663 psi | 88% | 2572 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 49,966 psi | 85% | 2562 fps | 98.2% |
| Vihtavuori N540 | <<locked>> | 82% | 51,213 psi | 87% | 2490 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 50,923 psi | 87% | 2582 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 98% | 51,039 psi | 87% | 2638 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 51,372 psi | 87% | 2684 fps | 96.4% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 51,097 psi | 87% | 2546 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 52,939 psi | 90% | 2641 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 43,598 psi | 74% | 2664 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 50,589 psi | 86% | 2579 fps | 97.7% |
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 2700 | <<locked>> | 80% | 48,066 psi | 82% | 2454 fps | 97.9% |
| Accurate 3100 | <<locked>> | 86% | 32,343 psi | 55% | 2247 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 47,572 psi | 81% | 2454 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 35,955 psi | 61% | 2336 fps | 98.4% |
| ADI AR 2208 | <<locked>> | 80% | 45,121 psi | 77% | 2434 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 90% | 42,496 psi | 72% | 2470 fps | 95.8% |
| ADI AR 2213 | <<locked>> | 96% | 46,238 psi | 79% | 2562 fps | 95.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 49,284 psi | 84% | 2628 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 45,324 psi | 77% | 2454 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 48,399 psi | 82% | 2516 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 35,331 psi | 60% | 2346 fps | 98.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 39,711 psi | 68% | 2457 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 39,523 psi | 67% | 2415 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 92% | 39,508 psi | 67% | 2457 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 25,875 psi | 44% | 2126 fps | 96.3% |
| Alliant Reloder-25 | <<locked>> | 90% | 30,995 psi | 53% | 2280 fps | 95.2% |
| Alliant Reloder-26 | 47.4 gr | 82% | 29,254 psi | 50% | 2277 fps | 95.4% |
| Bofors RP15 | <<locked>> | 96% | 41,626 psi | 71% | 2500 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 45,600 psi | 78% | 2464 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 39,508 psi | 67% | 2457 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 40,234 psi | 68% | 2349 fps | 96.4% |
| Hodgdon H380 | <<locked>> | 80% | 46,108 psi | 78% | 2477 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 80% | 37,869 psi | 64% | 2375 fps | 96.4% |
| Hodgdon H4350 | <<locked>> | 80% | 41,031 psi | 70% | 2398 fps | 95.9% |
| Hodgdon H4831 | <<locked>> | 96% | 49,400 psi | 84% | 2569 fps | 95.5% |
| Hodgdon H4831 SC | <<locked>> | 96% | 48,486 psi | 83% | 2552 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 32,793 psi | 56% | 2247 fps | 99% |
| Hodgdon Retumbo | <<locked>> | 98% | 38,943 psi | 66% | 2510 fps | 95.2% |
| Hodgdon Superformance | <<locked>> | 80% | 36,869 psi | 63% | 2385 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,180 psi | 46% | 1417 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 47,442 psi | 81% | 2464 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 49,472 psi | 84% | 2487 fps | 98.8% |
| IMR 4350 | <<locked>> | 80% | 36,013 psi | 61% | 2283 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 80% | 41,655 psi | 71% | 2379 fps | 97.2% |
| IMR 4831 | <<locked>> | 80% | 34,606 psi | 59% | 2293 fps | 98.1% |
| IMR 4895 | <<locked>> | 80% | 49,661 psi | 85% | 2539 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 48,370 psi | 82% | 2516 fps | 95.5% |
| IMR 7828 SSC | <<locked>> | 98% | 46,862 psi | 80% | 2589 fps | 95.6% |
| Lovex S062 | <<locked>> | 80% | 47,674 psi | 81% | 2461 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 39,247 psi | 67% | 2333 fps | 97.9% |
| Lovex S070 | <<locked>> | 80% | 37,550 psi | 64% | 2316 fps | 96.4% |
| Lovex S071 | <<locked>> | 90% | 31,343 psi | 53% | 2224 fps | 95.1% |
| Norma 203B | <<locked>> | 80% | 47,776 psi | 81% | 2503 fps | 100% |
| Norma 204 | <<locked>> | 84% | 40,466 psi | 69% | 2411 fps | 95.1% |
| Norma MRP | 49.4 gr | 88% | 36,274 psi | 62% | 2418 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 36,027 psi | 61% | 2333 fps | 98.3% |
| Ramshot Big Game | <<locked>> | 80% | 47,906 psi | 82% | 2523 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 43,656 psi | 74% | 2539 fps | 95% |
| Ramshot Hunter | <<locked>> | 80% | 34,751 psi | 59% | 2320 fps | 96.2% |
| Ramshot Magnum | <<locked>> | 96% | 38,812 psi | 66% | 2431 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,717 psi | 47% | 1453 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 46,166 psi | 79% | 2464 fps | 98.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 42,221 psi | 72% | 2507 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 35,708 psi | 61% | 2352 fps | 98% |
| ReloadSwiss RS 70 | 45.8 gr | 80% | 34,737 psi | 59% | 2356 fps | 97.3% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 35,940 psi | 61% | 2438 fps | 95% |
| Rottweil R 902 | <<locked>> | 80% | 49,443 psi | 84% | 2470 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 43,047 psi | 73% | 2418 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 44,179 psi | 75% | 2451 fps | 95% |
| Rottweil R 905 | <<locked>> | 88% | 38,595 psi | 66% | 2402 fps | 95% |
| Rottweil R 907 | <<locked>> | 80% | 40,234 psi | 68% | 2349 fps | 96.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,247 psi | 67% | 2333 fps | 97.9% |
| Shooters World Precision | <<locked>> | 80% | 47,674 psi | 81% | 2461 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 37,550 psi | 64% | 2316 fps | 96.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 43,903 psi | 75% | 2464 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 44,483 psi | 76% | 2333 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 38,319 psi | 65% | 2280 fps | 96.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 40,683 psi | 69% | 2444 fps | 95.6% |
| Somchem S355 | <<locked>> | 80% | 43,381 psi | 74% | 2415 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 48,240 psi | 82% | 2497 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 32,430 psi | 55% | 2293 fps | 99.7% |
| Somchem S385 | <<locked>> | 86% | 36,811 psi | 63% | 2336 fps | 95.3% |
| Vihtavuori N135 | <<locked>> | 80% | 49,603 psi | 84% | 2434 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 49,864 psi | 85% | 2451 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 41,466 psi | 71% | 2352 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 37,246 psi | 63% | 2329 fps | 98.5% |
| Vihtavuori N165 | <<locked>> | 92% | 38,537 psi | 66% | 2365 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 48,080 psi | 82% | 2448 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 36,869 psi | 63% | 2336 fps | 98.2% |
| Vihtavuori N555 | <<locked>> | 80% | 28,282 psi | 48% | 2195 fps | 96.4% |
| Vihtavuori N560 | <<locked>> | 96% | 48,066 psi | 82% | 2631 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 36,448 psi | 62% | 2306 fps | 99.7% |
| Winchester 760 | <<locked>> | 80% | 38,101 psi | 65% | 2379 fps | 96.4% |
| Winchester StaBALL HD | <<locked>> | 82% | 24,236 psi | 41% | 2149 fps | 95.8% |
| Winchester Supreme 780 | <<locked>> | 92% | 41,220 psi | 70% | 2421 fps | 95.5% |
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 92 powders for .280 Rem. loaded with the .284 | 174gr | Prvi Partizan PSP BT. Alliant Reloder-26 delivers the highest muzzle velocity at 2,740 fps; across all powders the maximum-charge window runs from 1,588 fps to 2,740 fps. Accurate 3100 gives the best case fill at 100 %, and 92 of the 92 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (405 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 174.0 gr projectile in 0.284" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2213, ADI AR 2217 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-26, Norma MRP, ReloadSwiss RS 70 rank at the top here: for .280 Rem. with the .284 | 174gr | Prvi Partizan PSP BT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2217, ADI AR 2225, Baschieri & Pellagri 109 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.