Load Specifications
Load data in caliber .280 Rem. with .284 | 160gr | Winchester Silvertip bullet and 78 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.
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 2700 | <<locked>> | 82% | 52,301 psi | 89% | 2654 fps | 98.4% |
| Accurate 3100 | <<locked>> | 98% | 49,763 psi | 85% | 2694 fps | 99.3% |
| Accurate 4064 | <<locked>> | 82% | 51,576 psi | 88% | 2644 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 51,967 psi | 88% | 2743 fps | 100% |
| ADI AR 2208 | <<locked>> | 84% | 51,764 psi | 88% | 2674 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 52,910 psi | 90% | 2782 fps | 97.8% |
| ADI AR 2213 | <<locked>> | 98% | 50,546 psi | 86% | 2769 fps | 96% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 52,591 psi | 90% | 2697 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 52,649 psi | 90% | 2717 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 52,939 psi | 90% | 2799 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 50,169 psi | 85% | 2766 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 52,243 psi | 89% | 2772 fps | 97.8% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 52,866 psi | 90% | 2828 fps | 98.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 49,980 psi | 85% | 2766 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 43,439 psi | 74% | 2687 fps | 99% |
| Alliant Reloder-26 | <<locked>> | 96% | 49,414 psi | 84% | 2835 fps | 99.9% |
| Bofors RP15ᴾ | <<locked>> | 100% | 48,399 psi | 82% | 2749 fps | 97.1% |
| Bofors RP3 | <<locked>> | 84% | 53,142 psi | 90% | 2710 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 52,866 psi | 90% | 2828 fps | 98.1% |
| Bofors RP7 | <<locked>> | 88% | 52,779 psi | 90% | 2697 fps | 98.6% |
| Hodgdon H380 | <<locked>> | 82% | 50,024 psi | 85% | 2671 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 88% | 50,763 psi | 86% | 2740 fps | 98.8% |
| Hodgdon H4350 | <<locked>> | 86% | 50,720 psi | 86% | 2700 fps | 97.8% |
| Hodgdon H4831 SC | <<locked>> | 98% | 53,040 psi | 90% | 2759 fps | 96% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 52,968 psi | 90% | 2723 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 42,685 psi | 73% | 2717 fps | 96.1% |
| Hodgdon Superformance | <<locked>> | 88% | 50,154 psi | 85% | 2766 fps | 98.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,405 psi | 62% | 1696 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 51,343 psi | 87% | 2657 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 50,241 psi | 86% | 2677 fps | 98.3% |
| IMR 4451 Enduron | <<locked>> | 86% | 50,981 psi | 87% | 2667 fps | 98.7% |
| IMR 4831 | <<locked>> | 92% | 52,417 psi | 89% | 2736 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 52,547 psi | 89% | 2713 fps | 96.1% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 51,459 psi | 88% | 2799 fps | 96.4% |
| Lovex S062 | <<locked>> | 82% | 51,576 psi | 88% | 2654 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 51,140 psi | 87% | 2671 fps | 99.5% |
| Lovex S070 | <<locked>> | 90% | 52,185 psi | 89% | 2707 fps | 99.1% |
| Lovex S071ᴾ | <<locked>> | 100% | 44,338 psi | 75% | 2605 fps | 98.5% |
| Norma 203B | <<locked>> | 82% | 52,011 psi | 89% | 2703 fps | 100% |
| Norma 204 | <<locked>> | 90% | 50,488 psi | 86% | 2720 fps | 97.2% |
| Norma MRP | <<locked>> | 98% | 52,417 psi | 89% | 2851 fps | 99.1% |
| Norma URP | <<locked>> | 90% | 50,836 psi | 87% | 2730 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 82% | 52,388 psi | 89% | 2723 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 51,750 psi | 88% | 2815 fps | 96.8% |
| Ramshot Hunter | <<locked>> | 92% | 52,939 psi | 90% | 2779 fps | 99.6% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 46,064 psi | 78% | 2694 fps | 97.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,115 psi | 63% | 1736 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 50,024 psi | 85% | 2654 fps | 99% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 49,835 psi | 85% | 2762 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 51,634 psi | 88% | 2762 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 50,096 psi | 85% | 2785 fps | 99.9% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 42,337 psi | 72% | 2707 fps | 97.2% |
| Rottweil R 903 | <<locked>> | 84% | 49,850 psi | 85% | 2657 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 51,430 psi | 88% | 2703 fps | 96.4% |
| Rottweil R 905 | <<locked>> | 96% | 51,503 psi | 88% | 2756 fps | 97.8% |
| Rottweil R 907 | <<locked>> | 88% | 52,779 psi | 90% | 2697 fps | 98.6% |
| Shooters World Long Rifle | <<locked>> | 88% | 51,140 psi | 87% | 2671 fps | 99.5% |
| Shooters World Precision | <<locked>> | 82% | 51,576 psi | 88% | 2654 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 52,185 psi | 89% | 2707 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 51,329 psi | 87% | 2713 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 51,198 psi | 87% | 2556 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 50,517 psi | 86% | 2621 fps | 98.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 51,039 psi | 87% | 2753 fps | 97.7% |
| Somchem S355 | <<locked>> | 84% | 50,082 psi | 85% | 2654 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 52,692 psi | 90% | 2694 fps | 95.8% |
| Somchem S365 | <<locked>> | 92% | 50,038 psi | 85% | 2736 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 52,040 psi | 89% | 2736 fps | 98.5% |
| Vihtavuori N150 | <<locked>> | 86% | 51,155 psi | 87% | 2635 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 52,939 psi | 90% | 2723 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 51,430 psi | 88% | 2713 fps | 98.1% |
| Vihtavuori N540 | <<locked>> | 82% | 51,967 psi | 88% | 2635 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 51,938 psi | 88% | 2726 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 98% | 52,591 psi | 90% | 2789 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 52,837 psi | 90% | 2838 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 52,257 psi | 89% | 2694 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 50,763 psi | 86% | 2740 fps | 98.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 45,165 psi | 77% | 2822 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 52,054 psi | 89% | 2726 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% | 49,081 psi | 84% | 2602 fps | 97.8% |
| Accurate 3100 | <<locked>> | 86% | 33,069 psi | 56% | 2372 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 48,530 psi | 83% | 2598 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 36,898 psi | 63% | 2470 fps | 98.2% |
| ADI AR 2208 | <<locked>> | 80% | 45,716 psi | 78% | 2572 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 90% | 43,584 psi | 74% | 2615 fps | 95.6% |
| ADI AR 2213 | <<locked>> | 96% | 47,268 psi | 80% | 2710 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,166 psi | 79% | 2598 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 49,356 psi | 84% | 2664 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 36,085 psi | 61% | 2480 fps | 98.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 40,712 psi | 69% | 2598 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 43,178 psi | 74% | 2608 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 92% | 40,712 psi | 69% | 2602 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,440 psi | 45% | 2244 fps | 95.9% |
| Alliant Reloder-25 | <<locked>> | 92% | 33,895 psi | 58% | 2467 fps | 96.1% |
| Alliant Reloder-26 | 51.8 gr | 82% | 30,066 psi | 51% | 2405 fps | 95.1% |
| Bofors RP15 | <<locked>> | 96% | 42,656 psi | 73% | 2641 fps | 95.5% |
| Bofors RP3 | <<locked>> | 80% | 46,499 psi | 79% | 2608 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 40,712 psi | 69% | 2602 fps | 95% |
| Bofors RP7 | <<locked>> | 80% | 40,930 psi | 70% | 2484 fps | 96.1% |
| Hodgdon H380 | <<locked>> | 80% | 46,833 psi | 80% | 2618 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 80% | 38,754 psi | 66% | 2513 fps | 96.1% |
| Hodgdon H4350 | <<locked>> | 80% | 41,771 psi | 71% | 2533 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 96% | 49,632 psi | 84% | 2700 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,620 psi | 57% | 2382 fps | 98.8% |
| Hodgdon Retumbo | <<locked>> | 98% | 39,987 psi | 68% | 2651 fps | 95% |
| Hodgdon Superformance | <<locked>> | 80% | 37,695 psi | 64% | 2520 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,122 psi | 46% | 1512 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 48,095 psi | 82% | 2605 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 39,059 psi | 66% | 2467 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,293 psi | 72% | 2513 fps | 97% |
| IMR 4831 | <<locked>> | 80% | 35,476 psi | 60% | 2425 fps | 97.9% |
| IMR 4955 Enduron | <<locked>> | 94% | 49,298 psi | 84% | 2661 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 98% | 48,080 psi | 82% | 2740 fps | 95.5% |
| Lovex S062 | <<locked>> | 80% | 48,327 psi | 82% | 2602 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 39,987 psi | 68% | 2470 fps | 97.8% |
| Lovex S070 | <<locked>> | 80% | 38,203 psi | 65% | 2451 fps | 96.2% |
| Lovex S071 | <<locked>> | 92% | 34,214 psi | 58% | 2398 fps | 95.7% |
| Norma 203B | <<locked>> | 80% | 48,762 psi | 83% | 2651 fps | 100% |
| Norma 204 | <<locked>> | 86% | 44,193 psi | 75% | 2608 fps | 95.7% |
| Norma MRP | 54 gr | 88% | 37,275 psi | 63% | 2556 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 36,753 psi | 63% | 2464 fps | 98% |
| Ramshot Big Game | <<locked>> | 80% | 49,081 psi | 84% | 2674 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 48,225 psi | 82% | 2753 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 35,505 psi | 60% | 2448 fps | 95.9% |
| Ramshot Magnum | <<locked>> | 96% | 39,856 psi | 68% | 2569 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,615 psi | 47% | 1549 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 46,934 psi | 80% | 2602 fps | 98.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,236 psi | 74% | 2651 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,651 psi | 62% | 2490 fps | 97.8% |
| ReloadSwiss RS 70 | 50.1 gr | 80% | 35,636 psi | 61% | 2493 fps | 97.1% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 39,653 psi | 68% | 2641 fps | 96.2% |
| Rottweil R 903 | <<locked>> | 80% | 43,845 psi | 75% | 2556 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 48,182 psi | 82% | 2648 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 90% | 42,250 psi | 72% | 2592 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 80% | 40,930 psi | 70% | 2484 fps | 96.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,987 psi | 68% | 2470 fps | 97.8% |
| Shooters World Precision | <<locked>> | 80% | 48,327 psi | 82% | 2602 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 38,203 psi | 65% | 2451 fps | 96.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 44,788 psi | 76% | 2605 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,324 psi | 77% | 2470 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,059 psi | 66% | 2415 fps | 96.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 41,843 psi | 71% | 2589 fps | 95.5% |
| Somchem S355 | <<locked>> | 80% | 44,208 psi | 75% | 2556 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 49,443 psi | 84% | 2641 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 33,301 psi | 57% | 2428 fps | 99.6% |
| Somchem S385 | <<locked>> | 86% | 37,681 psi | 64% | 2467 fps | 95% |
| Vihtavuori N150 | <<locked>> | 80% | 42,148 psi | 72% | 2490 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 38,116 psi | 65% | 2464 fps | 98.3% |
| Vihtavuori N165 | <<locked>> | 92% | 39,552 psi | 67% | 2500 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 80% | 48,776 psi | 83% | 2589 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,507 psi | 64% | 2464 fps | 98% |
| Vihtavuori N555 | <<locked>> | 80% | 28,993 psi | 49% | 2316 fps | 96.1% |
| Vihtavuori N560 | <<locked>> | 96% | 49,429 psi | 84% | 2782 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,260 psi | 63% | 2438 fps | 99.6% |
| Winchester 760 | <<locked>> | 80% | 38,972 psi | 66% | 2516 fps | 96.2% |
| Winchester StaBALL HD | <<locked>> | 82% | 24,918 psi | 42% | 2270 fps | 95.5% |
| Winchester Supreme 780 | <<locked>> | 92% | 42,279 psi | 72% | 2559 fps | 95.3% |
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 86 powders for .280 Rem. loaded with the .284 | 160gr | Winchester Silvertip. Norma MRP delivers the highest muzzle velocity at 2,851 fps; across all powders the maximum-charge window runs from 1,696 fps to 2,851 fps. ADI AR 2217 gives the best case fill at 100 %, and 86 of the 86 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (405 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.284" calls for a 1:16.0 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 | 160gr | Winchester Silvertip 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.