Load Specifications
Load data in caliber .280 Riml. N.E. Ross with .284 | 177gr | Brenneke TIG bullet and 26 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 80, Norma 217 and IMR 8133 Enduron.
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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Max Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 82% | 42,105 psi | 89% | 2526 fps | 100% |
| ADI AR 2213 | <<locked>> | 82% | 41,655 psi | 88% | 2598 fps | 98% |
| ADI AR 2217 | <<locked>> | 90% | 40,393 psi | 86% | 2575 fps | 98% |
| ADI AR 2225 | <<locked>> | 94% | 41,626 psi | 88% | 2661 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 82% | 42,192 psi | 90% | 2605 fps | 99.1% |
| Alliant Reloder-23 | <<locked>> | 82% | 40,814 psi | 87% | 2546 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 86% | 40,205 psi | 85% | 2595 fps | 100% |
| Bofors RP15 | <<locked>> | 84% | 41,858 psi | 89% | 2598 fps | 98.9% |
| Bofors RP30 | <<locked>> | 88% | 39,900 psi | 85% | 2589 fps | 98.1% |
| Bofors RP5 | <<locked>> | 82% | 42,192 psi | 90% | 2605 fps | 99.1% |
| Hodgdon H1000 | <<locked>> | 88% | 41,292 psi | 88% | 2598 fps | 98.7% |
| Hodgdon Retumbo | <<locked>> | 88% | 42,090 psi | 89% | 2707 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,521 psi | 80% | 1722 fps | 100% |
| IMR 7828 SSC | <<locked>> | 82% | 40,234 psi | 85% | 2582 fps | 97.7% |
| IMR 8133 Enduron | <<locked>> | 96% | 40,582 psi | 86% | 2631 fps | 98.2% |
| Lovex S071 | <<locked>> | 86% | 41,321 psi | 88% | 2510 fps | 99.9% |
| Norma 217 | <<locked>> | 96% | 40,886 psi | 87% | 2654 fps | 99.7% |
| Ramshot Grand | <<locked>> | 82% | 39,972 psi | 85% | 2589 fps | 98% |
| Ramshot Magnum | <<locked>> | 86% | 41,568 psi | 88% | 2592 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,537 psi | 82% | 1765 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 41,408 psi | 88% | 2690 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 90% | 40,640 psi | 86% | 2644 fps | 97% |
| Vihtavuori N165 | <<locked>> | 82% | 40,306 psi | 86% | 2493 fps | 99% |
| Vihtavuori N565 | <<locked>> | 86% | 42,018 psi | 89% | 2608 fps | 97.9% |
| Vihtavuori N568 | <<locked>> | 90% | 41,930 psi | 89% | 2654 fps | 96.7% |
| Winchester StaBALL HD | <<locked>> | 84% | 41,191 psi | 87% | 2657 fps | 100% |
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% | 39,392 psi | 84% | 2474 fps | 99.8% |
| ADI AR 2213 | <<locked>> | 80% | 38,943 psi | 83% | 2539 fps | 97.2% |
| ADI AR 2217 | <<locked>> | 84% | 33,069 psi | 70% | 2405 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 80% | 26,397 psi | 56% | 2260 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 80% | 39,479 psi | 84% | 2549 fps | 98.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 38,116 psi | 81% | 2493 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 32,909 psi | 70% | 2431 fps | 99.4% |
| Bofors RP15 | <<locked>> | 80% | 36,637 psi | 78% | 2487 fps | 97.7% |
| Bofors RP30 | <<locked>> | 82% | 32,503 psi | 69% | 2421 fps | 95.6% |
| Bofors RP5 | <<locked>> | 80% | 39,479 psi | 84% | 2549 fps | 98.5% |
| Hodgdon H1000 | <<locked>> | 80% | 31,444 psi | 67% | 2362 fps | 95.3% |
| Hodgdon Retumbo | <<locked>> | 80% | 32,111 psi | 68% | 2461 fps | 97% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,195 psi | 60% | 1539 fps | 100% |
| IMR 7828 SSC | <<locked>> | 80% | 37,594 psi | 80% | 2520 fps | 96.9% |
| IMR 8133 Enduron | 61.7 gr | 90% | 33,301 psi | 71% | 2464 fps | 95.8% |
| Lovex S071 | <<locked>> | 80% | 34,098 psi | 72% | 2362 fps | 99% |
| Norma 217 | 58 gr | 84% | 27,427 psi | 58% | 2320 fps | 95.3% |
| Ramshot Grand | <<locked>> | 80% | 37,275 psi | 79% | 2530 fps | 97.2% |
| Ramshot Magnum | <<locked>> | 80% | 33,417 psi | 71% | 2418 fps | 97.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,790 psi | 61% | 1575 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 31,154 psi | 66% | 2438 fps | 97.8% |
| ReloadSwiss RS 80 | 66.9 gr | 88% | 37,753 psi | 80% | 2582 fps | 96% |
| Vihtavuori N165 | <<locked>> | 80% | 37,724 psi | 80% | 2441 fps | 98.5% |
| Vihtavuori N565 | <<locked>> | 80% | 34,287 psi | 73% | 2438 fps | 95.4% |
| Vihtavuori N568 | <<locked>> | 88% | 39,218 psi | 83% | 2598 fps | 95.9% |
| Winchester StaBALL HD | <<locked>> | 80% | 35,259 psi | 75% | 2546 fps | 100% |
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 26 powders for .280 Riml. N.E. Ross loaded with the .284 | 177gr | Brenneke TIG. Hodgdon Retumbo delivers the highest muzzle velocity at 2,707 fps; across all powders the maximum-charge window runs from 1,722 fps to 2,707 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 26 of the 26 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (325 MPa), the top charges use 80–90 %, leaving at least 10 % headroom. The 177.0 gr projectile in 0.284" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, 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. ReloadSwiss RS 80, Norma 217, IMR 8133 Enduron rank at the top here: for .280 Riml. N.E. Ross with the .284 | 177gr | Brenneke TIG 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.