Load Specifications
Load data in caliber .400/350 Rigby N.E. with .358 | 225gr | NorthFork Bonded Core bullet and 27 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Vihtavuori N150 and ReloadSwiss RS 14.
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 2495 | <<locked>> | 86% | 36,347 psi | 90% | 2418 fps | 100% |
| Accurate 4064 | <<locked>> | 88% | 36,434 psi | 90% | 2444 fps | 99.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 35,969 psi | 89% | 2431 fps | 96.5% |
| Bofors RP3 | <<locked>> | 88% | 35,244 psi | 87% | 2428 fps | 96.4% |
| Hodgdon BL-C2 | <<locked>> | 82% | 36,216 psi | 89% | 2441 fps | 97.5% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 34,983 psi | 86% | 2434 fps | 96.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,171 psi | 84% | 1598 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 35,520 psi | 87% | 2382 fps | 95.7% |
| IMR 3031 | <<locked>> | 82% | 35,201 psi | 87% | 2431 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 84% | 36,738 psi | 90% | 2441 fps | 98.6% |
| Lovex S062 | <<locked>> | 86% | 36,347 psi | 90% | 2402 fps | 97% |
| Norma 201 | <<locked>> | 82% | 35,911 psi | 88% | 2375 fps | 96.8% |
| Norma 202 | <<locked>> | 82% | 35,665 psi | 88% | 2392 fps | 98.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,360 psi | 85% | 1637 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 36,100 psi | 89% | 2507 fps | 98% |
| Rottweil R 902 | <<locked>> | 84% | 36,172 psi | 89% | 2375 fps | 96.9% |
| Rottweil R 903 | <<locked>> | 90% | 35,317 psi | 87% | 2425 fps | 96.1% |
| Shooters World Match Rifle | <<locked>> | 84% | 36,738 psi | 90% | 2441 fps | 98.6% |
| Shooters World Precision | <<locked>> | 86% | 36,347 psi | 90% | 2402 fps | 97% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 34,896 psi | 86% | 2313 fps | 99.3% |
| Somchem S355 | <<locked>> | 90% | 36,695 psi | 90% | 2434 fps | 96.2% |
| Somchem S365ᴾ | <<locked>> | 100% | 35,810 psi | 88% | 2500 fps | 97.1% |
| Vihtavuori N135 | <<locked>> | 84% | 34,795 psi | 86% | 2375 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 36,027 psi | 89% | 2379 fps | 99.2% |
| Vihtavuori N150 | <<locked>> | 90% | 34,998 psi | 86% | 2375 fps | 97.1% |
| Vihtavuori N540 | <<locked>> | 84% | 34,606 psi | 85% | 2369 fps | 98.5% |
| Winchester StaBALL Match | <<locked>> | 84% | 36,419 psi | 90% | 2431 fps | 96.2% |
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 2495 | <<locked>> | 80% | 29,805 psi | 73% | 2280 fps | 99.6% |
| Accurate 4064 | <<locked>> | 80% | 28,210 psi | 69% | 2257 fps | 97.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 31,792 psi | 78% | 2336 fps | 95% |
| Bofors RP3 | <<locked>> | 86% | 33,098 psi | 82% | 2382 fps | 95.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 33,881 psi | 83% | 2388 fps | 96.8% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 32,837 psi | 81% | 2382 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,208 psi | 62% | 1424 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 33,417 psi | 82% | 2336 fps | 95% |
| IMR 3031 | <<locked>> | 80% | 32,953 psi | 81% | 2385 fps | 99.6% |
| Lovex D073.6 | <<locked>> | 80% | 32,039 psi | 79% | 2343 fps | 97.4% |
| Lovex S062 | <<locked>> | 82% | 32,169 psi | 79% | 2310 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 33,634 psi | 83% | 2326 fps | 96.1% |
| Norma 202 | <<locked>> | 80% | 33,518 psi | 83% | 2346 fps | 98.4% |
| ReloadSwiss RS 14 | 17.2 gr | 80% | 25,280 psi | 62% | 1457 fps | 100% |
| ReloadSwiss RS 60 | 55.3 gr | 84% | 29,747 psi | 73% | 2339 fps | 95.2% |
| Rottweil R 902 | <<locked>> | 80% | 32,010 psi | 79% | 2280 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 88% | 33,025 psi | 81% | 2372 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 32,039 psi | 79% | 2343 fps | 97.4% |
| Shooters World Precision | <<locked>> | 82% | 32,169 psi | 79% | 2310 fps | 95.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 28,863 psi | 71% | 2178 fps | 98% |
| Somchem S355 | <<locked>> | 88% | 34,360 psi | 85% | 2385 fps | 95.4% |
| Somchem S365 | <<locked>> | 96% | 31,662 psi | 78% | 2395 fps | 95.4% |
| Vihtavuori N135 | <<locked>> | 80% | 30,545 psi | 75% | 2283 fps | 99.6% |
| Vihtavuori N140 | <<locked>> | 80% | 31,676 psi | 78% | 2287 fps | 98.2% |
| Vihtavuori N150 | 53.4 gr | 86% | 30,734 psi | 76% | 2280 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 30,342 psi | 75% | 2270 fps | 97.3% |
| Winchester StaBALL Match | <<locked>> | 82% | 34,156 psi | 84% | 2382 fps | 95.4% |
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 27 powders for .400/350 Rigby N.E. loaded with the .358 | 225gr | NorthFork Bonded Core. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,507 fps; across all powders the maximum-charge window runs from 1,598 fps to 2,507 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 27 of the 27 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (280 MPa), the top charges use 84–90 %, leaving at least 10 % headroom. The 225.0 gr projectile in 0.358" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14, Somchem S365 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 60, Vihtavuori N150, ReloadSwiss RS 14 rank at the top here: for .400/350 Rigby N.E. with the .358 | 225gr | NorthFork Bonded Core 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.