Load Specifications
Load data in caliber .280 Rem. with .284 | 174gr | Prvi Partizan FMJ BT bullet and 79 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% | 52,286 psi | 89% | 2530 fps | 98.7% |
| Accurate 3100 | <<locked>> | 98% | 49,835 psi | 85% | 2575 fps | 99.5% |
| Accurate 4064 | <<locked>> | 82% | 51,895 psi | 88% | 2520 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 52,141 psi | 89% | 2618 fps | 100% |
| Accurate MAGPRO | <<locked>> | 98% | 51,517 psi | 88% | 2700 fps | 96% |
| ADI AR 2208 | <<locked>> | 84% | 51,909 psi | 88% | 2549 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 53,026 psi | 90% | 2661 fps | 98.3% |
| ADI AR 2213 | <<locked>> | 98% | 50,734 psi | 86% | 2651 fps | 96.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 52,576 psi | 90% | 2569 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 52,895 psi | 90% | 2589 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 52,750 psi | 90% | 2667 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 50,343 psi | 86% | 2641 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 52,402 psi | 89% | 2651 fps | 98.3% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 52,997 psi | 90% | 2707 fps | 98.6% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 50,082 psi | 85% | 2641 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 43,584 psi | 74% | 2575 fps | 99.4% |
| Alliant Reloder-26 | <<locked>> | 96% | 49,458 psi | 84% | 2710 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 48,631 psi | 83% | 2635 fps | 97.7% |
| Bofors RP3 | <<locked>> | 82% | 49,719 psi | 85% | 2536 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 52,997 psi | 90% | 2707 fps | 98.6% |
| Bofors RP7 | <<locked>> | 88% | 52,852 psi | 90% | 2575 fps | 99% |
| Hodgdon H380 | <<locked>> | 82% | 50,125 psi | 85% | 2549 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 88% | 50,691 psi | 86% | 2615 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 86% | 50,894 psi | 87% | 2579 fps | 98.2% |
| Hodgdon H4831 | <<locked>> | 96% | 50,807 psi | 86% | 2602 fps | 96.1% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 49,821 psi | 85% | 2552 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 42,714 psi | 73% | 2605 fps | 97% |
| Hodgdon Superformance | <<locked>> | 88% | 50,212 psi | 85% | 2644 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,579 psi | 62% | 1604 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 51,314 psi | 87% | 2530 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 50,357 psi | 86% | 2556 fps | 98.7% |
| IMR 4451 Enduron | <<locked>> | 86% | 51,155 psi | 87% | 2549 fps | 99.1% |
| IMR 4831 | <<locked>> | 92% | 52,417 psi | 89% | 2612 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 52,678 psi | 90% | 2595 fps | 96.7% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 51,532 psi | 88% | 2680 fps | 97% |
| Lovex S062 | <<locked>> | 82% | 51,547 psi | 88% | 2526 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 51,198 psi | 87% | 2549 fps | 99.7% |
| Lovex S070 | <<locked>> | 90% | 52,228 psi | 89% | 2585 fps | 99.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 44,382 psi | 76% | 2490 fps | 98.9% |
| Norma 203B | <<locked>> | 82% | 52,228 psi | 89% | 2579 fps | 100% |
| Norma 204 | <<locked>> | 90% | 50,676 psi | 86% | 2598 fps | 97.8% |
| Norma MRP | <<locked>> | 98% | 52,373 psi | 89% | 2726 fps | 99.4% |
| Norma URP | <<locked>> | 90% | 50,923 psi | 87% | 2605 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 52,547 psi | 89% | 2598 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 51,837 psi | 88% | 2694 fps | 97.4% |
| Ramshot Hunter | <<locked>> | 92% | 52,968 psi | 90% | 2654 fps | 99.8% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 46,035 psi | 78% | 2579 fps | 97.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,101 psi | 63% | 1640 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 50,270 psi | 86% | 2536 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 49,792 psi | 85% | 2631 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 51,663 psi | 88% | 2638 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 50,256 psi | 86% | 2664 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 42,467 psi | 72% | 2598 fps | 97.9% |
| Rottweil R 903 | <<locked>> | 84% | 50,183 psi | 85% | 2536 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 51,271 psi | 87% | 2579 fps | 96.9% |
| Rottweil R 905 | <<locked>> | 96% | 51,634 psi | 88% | 2635 fps | 98.3% |
| Rottweil R 907 | <<locked>> | 88% | 52,852 psi | 90% | 2575 fps | 99% |
| Shooters World Long Rifle | <<locked>> | 88% | 51,198 psi | 87% | 2549 fps | 99.7% |
| Shooters World Precision | <<locked>> | 82% | 51,547 psi | 88% | 2526 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 52,228 psi | 89% | 2585 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 51,474 psi | 88% | 2589 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 51,126 psi | 87% | 2431 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 50,792 psi | 86% | 2503 fps | 99.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 51,169 psi | 87% | 2631 fps | 98.2% |
| Somchem S355 | <<locked>> | 84% | 50,038 psi | 85% | 2530 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 52,692 psi | 90% | 2575 fps | 96.4% |
| Somchem S365 | <<locked>> | 92% | 50,053 psi | 85% | 2608 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 52,040 psi | 89% | 2612 fps | 98.9% |
| Vihtavuori N150 | <<locked>> | 86% | 51,082 psi | 87% | 2507 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 53,098 psi | 90% | 2602 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 51,445 psi | 88% | 2592 fps | 98.5% |
| Vihtavuori N540 | <<locked>> | 82% | 52,054 psi | 89% | 2510 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 51,982 psi | 88% | 2605 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 52,460 psi | 89% | 2661 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 52,779 psi | 90% | 2717 fps | 96.9% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 52,228 psi | 89% | 2569 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 50,966 psi | 87% | 2618 fps | 99.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 45,194 psi | 77% | 2700 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 52,040 psi | 89% | 2605 fps | 98.1% |
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 2700 | <<locked>> | 80% | 49,153 psi | 84% | 2480 fps | 98.3% |
| Accurate 3100 | <<locked>> | 84% | 31,140 psi | 53% | 2224 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 48,718 psi | 83% | 2477 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 37,144 psi | 63% | 2365 fps | 98.7% |
| Accurate MAGPRO | <<locked>> | 96% | 47,979 psi | 82% | 2641 fps | 95.1% |
| ADI AR 2208 | <<locked>> | 80% | 46,050 psi | 78% | 2457 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 40,930 psi | 70% | 2448 fps | 95.5% |
| ADI AR 2213 | <<locked>> | 96% | 47,282 psi | 80% | 2592 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,325 psi | 79% | 2477 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 49,661 psi | 85% | 2543 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 36,158 psi | 62% | 2369 fps | 98.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 40,828 psi | 70% | 2484 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 40,683 psi | 69% | 2444 fps | 95.6% |
| Alliant Reloder-22 | <<locked>> | 92% | 40,640 psi | 69% | 2487 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,527 psi | 45% | 2152 fps | 96.8% |
| Alliant Reloder-25 | <<locked>> | 90% | 31,879 psi | 54% | 2313 fps | 95.9% |
| Alliant Reloder-26 | 47.4 gr | 80% | 28,181 psi | 48% | 2251 fps | 95% |
| Bofors RP15 | <<locked>> | 94% | 40,089 psi | 68% | 2477 fps | 95.4% |
| Bofors RP3 | <<locked>> | 80% | 46,586 psi | 79% | 2487 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 40,640 psi | 69% | 2487 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 41,060 psi | 70% | 2372 fps | 96.8% |
| Hodgdon H380 | <<locked>> | 80% | 47,021 psi | 80% | 2500 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 80% | 38,943 psi | 66% | 2405 fps | 96.8% |
| Hodgdon H4350 | <<locked>> | 80% | 41,858 psi | 71% | 2421 fps | 96.3% |
| Hodgdon H4831 | <<locked>> | 94% | 47,572 psi | 81% | 2549 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,678 psi | 57% | 2274 fps | 99.2% |
| Hodgdon Retumbo | <<locked>> | 98% | 40,089 psi | 68% | 2546 fps | 96% |
| Hodgdon Superformance | <<locked>> | 80% | 37,753 psi | 64% | 2411 fps | 96% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,151 psi | 46% | 1427 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 48,428 psi | 82% | 2487 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 36,796 psi | 63% | 2310 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,482 psi | 72% | 2402 fps | 97.6% |
| IMR 4831 | <<locked>> | 80% | 35,723 psi | 61% | 2323 fps | 98.5% |
| IMR 4955 Enduron | <<locked>> | 92% | 46,514 psi | 79% | 2493 fps | 95.2% |
| IMR 7828 SSC | <<locked>> | 96% | 45,194 psi | 77% | 2569 fps | 95.3% |
| Lovex S062 | <<locked>> | 80% | 48,689 psi | 83% | 2484 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 40,089 psi | 68% | 2356 fps | 98.3% |
| Lovex S070 | <<locked>> | 80% | 38,377 psi | 65% | 2343 fps | 96.8% |
| Lovex S071 | <<locked>> | 90% | 32,329 psi | 55% | 2251 fps | 95.7% |
| Norma 203B | <<locked>> | 80% | 49,052 psi | 84% | 2530 fps | 100% |
| Norma 204 | <<locked>> | 84% | 41,437 psi | 71% | 2438 fps | 95.6% |
| Norma MRP | 49.4 gr | 86% | 34,809 psi | 59% | 2392 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 36,927 psi | 63% | 2359 fps | 98.6% |
| Ramshot Big Game | <<locked>> | 80% | 49,037 psi | 83% | 2549 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 44,962 psi | 77% | 2575 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 80% | 35,723 psi | 61% | 2346 fps | 96.7% |
| Ramshot Magnum | <<locked>> | 94% | 37,130 psi | 63% | 2405 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,702 psi | 47% | 1463 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 46,978 psi | 80% | 2484 fps | 99% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,366 psi | 74% | 2533 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,782 psi | 63% | 2379 fps | 98.4% |
| ReloadSwiss RS 70 | 46.9 gr | 80% | 35,636 psi | 61% | 2382 fps | 97.8% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 36,941 psi | 63% | 2470 fps | 95.8% |
| Rottweil R 903 | <<locked>> | 80% | 44,077 psi | 75% | 2441 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 45,397 psi | 77% | 2480 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 88% | 39,610 psi | 67% | 2428 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 80% | 41,060 psi | 70% | 2372 fps | 96.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,089 psi | 68% | 2356 fps | 98.3% |
| Shooters World Precision | <<locked>> | 80% | 48,689 psi | 83% | 2484 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 38,377 psi | 65% | 2343 fps | 96.8% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 45,049 psi | 77% | 2490 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,469 psi | 77% | 2352 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,088 psi | 67% | 2303 fps | 96.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 39,233 psi | 67% | 2421 fps | 95.3% |
| Somchem S355 | <<locked>> | 80% | 44,338 psi | 75% | 2438 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 49,559 psi | 84% | 2526 fps | 95.7% |
| Somchem S365 | <<locked>> | 80% | 33,301 psi | 57% | 2320 fps | 99.9% |
| Somchem S385 | <<locked>> | 86% | 37,797 psi | 64% | 2362 fps | 95.8% |
| Vihtavuori N150 | <<locked>> | 80% | 42,351 psi | 72% | 2375 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 38,392 psi | 65% | 2359 fps | 98.8% |
| Vihtavuori N165 | <<locked>> | 90% | 37,130 psi | 63% | 2343 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 80% | 48,950 psi | 83% | 2467 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,681 psi | 64% | 2359 fps | 98.5% |
| Vihtavuori N555 | <<locked>> | 80% | 29,138 psi | 50% | 2221 fps | 96.9% |
| Vihtavuori N560 | <<locked>> | 94% | 46,166 psi | 79% | 2602 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,304 psi | 64% | 2329 fps | 99.8% |
| Winchester 760 | <<locked>> | 80% | 38,943 psi | 66% | 2405 fps | 96.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 23,409 psi | 40% | 2123 fps | 95.3% |
| Winchester Supreme 780 | <<locked>> | 90% | 39,566 psi | 67% | 2395 fps | 95.1% |
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 | 174gr | Prvi Partizan FMJ BT. Norma MRP delivers the highest muzzle velocity at 2,726 fps; across all powders the maximum-charge window runs from 1,604 fps to 2,726 fps. ADI AR 2217 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 52–90 %, leaving at least 10 % headroom. The 174.0 gr projectile in 0.284" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, 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. Alliant Reloder-26, Norma MRP, ReloadSwiss RS 70 rank at the top here: for .280 Rem. with the .284 | 174gr | Prvi Partizan FMJ 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.