Load Specifications
Load data in caliber .280 Riml. N.E. Ross with .284 | 145gr | Brenneke Teilmantel bullet and 28 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, Hodgdon Retumbo and ReloadSwiss RS 76.
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: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 86% | 42,540 psi | 90% | 2785 fps | 99.3% |
| ADI AR 2209 | <<locked>> | 82% | 41,452 psi | 88% | 2805 fps | 97.1% |
| ADI AR 2213 | <<locked>> | 86% | 42,322 psi | 90% | 2854 fps | 96% |
| ADI AR 2225 | <<locked>> | 98% | 41,698 psi | 88% | 2900 fps | 99.1% |
| Alliant Reloder-19 | <<locked>> | 82% | 41,394 psi | 88% | 2799 fps | 97.1% |
| Alliant Reloder-22 | <<locked>> | 86% | 42,467 psi | 90% | 2861 fps | 97.6% |
| Alliant Reloder-23 | <<locked>> | 86% | 40,901 psi | 87% | 2812 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 90% | 40,292 psi | 85% | 2848 fps | 99.6% |
| Alliant Reloder-26 | <<locked>> | 84% | 42,569 psi | 90% | 2917 fps | 99.9% |
| Bofors RP15 | <<locked>> | 88% | 42,076 psi | 89% | 2851 fps | 97.3% |
| Bofors RP30 | <<locked>> | 94% | 42,540 psi | 90% | 2890 fps | 96.9% |
| Bofors RP5 | <<locked>> | 86% | 42,467 psi | 90% | 2861 fps | 97.6% |
| Hodgdon H1000 | <<locked>> | 92% | 41,814 psi | 89% | 2841 fps | 96.9% |
| Hodgdon Retumbo | <<locked>> | 92% | 42,134 psi | 89% | 2953 fps | 98.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,072 psi | 79% | 1906 fps | 100% |
| Lovex S071 | <<locked>> | 90% | 41,365 psi | 88% | 2759 fps | 99.1% |
| Norma 217ᴾ | <<locked>> | 100% | 40,205 psi | 85% | 2887 fps | 98.2% |
| Norma MRP | <<locked>> | 84% | 41,684 psi | 88% | 2874 fps | 98.5% |
| Ramshot Magnum | <<locked>> | 90% | 41,829 psi | 89% | 2841 fps | 98.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,956 psi | 81% | 1952 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 41,684 psi | 88% | 2936 fps | 99.1% |
| Rottweil R 905 | <<locked>> | 82% | 40,843 psi | 87% | 2785 fps | 97.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 40,495 psi | 86% | 2779 fps | 97% |
| Somchem S385 | <<locked>> | 82% | 41,408 psi | 88% | 2766 fps | 98% |
| Vihtavuori N165 | <<locked>> | 86% | 40,857 psi | 87% | 2746 fps | 97.6% |
| Vihtavuori N555 | <<locked>> | 82% | 39,929 psi | 85% | 2776 fps | 99.9% |
| Winchester StaBALL HD | <<locked>> | 88% | 40,176 psi | 85% | 2920 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 84% | 40,640 psi | 86% | 2746 fps | 96.9% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 34,824 psi | 74% | 2612 fps | 97.6% |
| ADI AR 2209 | <<locked>> | 80% | 38,667 psi | 82% | 2740 fps | 96.2% |
| ADI AR 2213 | <<locked>> | 84% | 39,494 psi | 84% | 2789 fps | 95% |
| ADI AR 2225 | <<locked>> | 90% | 32,140 psi | 68% | 2644 fps | 95.6% |
| Alliant Reloder-19 | <<locked>> | 80% | 38,870 psi | 82% | 2740 fps | 96.3% |
| Alliant Reloder-22 | <<locked>> | 82% | 37,130 psi | 79% | 2736 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 33,359 psi | 71% | 2641 fps | 99.7% |
| Alliant Reloder-25 | <<locked>> | 80% | 28,979 psi | 61% | 2539 fps | 95.9% |
| Alliant Reloder-26 | <<locked>> | 80% | 36,448 psi | 77% | 2782 fps | 99.3% |
| Bofors RP15 | <<locked>> | 84% | 36,840 psi | 78% | 2726 fps | 95.6% |
| Bofors RP30 | <<locked>> | 90% | 37,130 psi | 79% | 2769 fps | 95% |
| Bofors RP5 | <<locked>> | 82% | 37,130 psi | 79% | 2736 fps | 95.9% |
| Hodgdon H1000 | <<locked>> | 90% | 39,015 psi | 83% | 2776 fps | 95.9% |
| Hodgdon Retumbo | 63.2 gr | 86% | 34,548 psi | 73% | 2749 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,818 psi | 59% | 1706 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 29,965 psi | 64% | 2484 fps | 95.8% |
| Norma 217 | <<locked>> | 94% | 32,808 psi | 70% | 2694 fps | 95.4% |
| Norma MRP | <<locked>> | 80% | 36,230 psi | 77% | 2743 fps | 97% |
| Ramshot Magnum | <<locked>> | 84% | 33,663 psi | 71% | 2644 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,471 psi | 60% | 1749 fps | 100% |
| ReloadSwiss RS 76 | 66 gr | 84% | 31,357 psi | 67% | 2651 fps | 95% |
| Rottweil R 905 | <<locked>> | 80% | 38,072 psi | 81% | 2720 fps | 96.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 37,739 psi | 80% | 2717 fps | 96.1% |
| Somchem S385 | <<locked>> | 80% | 38,711 psi | 82% | 2707 fps | 97.3% |
| Vihtavuori N165 | <<locked>> | 80% | 33,576 psi | 71% | 2575 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 80% | 37,391 psi | 79% | 2720 fps | 99.7% |
| Winchester StaBALL HD | 60.4 gr | 80% | 29,704 psi | 63% | 2661 fps | 99.9% |
| Winchester Supreme 780 | <<locked>> | 80% | 35,302 psi | 75% | 2625 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 28 powders for .280 Riml. N.E. Ross loaded with the .284 | 145gr | Brenneke Teilmantel. Hodgdon Retumbo delivers the highest muzzle velocity at 2,953 fps; across all powders the maximum-charge window runs from 1,906 fps to 2,953 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 28 of the 28 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (325 MPa), the top charges use 79–90 %, leaving at least 10 % headroom. The 145.0 gr projectile in 0.284" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, Norma 217, ReloadSwiss RS 14 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. Winchester StaBALL HD, Hodgdon Retumbo, ReloadSwiss RS 76 rank at the top here: for .280 Riml. N.E. Ross with the .284 | 145gr | Brenneke Teilmantel 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.