Load Specifications
Load data in caliber .470 N.E. with .475 | 380gr | Rim Rock LBT?WFN Gas Check bullet and 21 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Somchem S365, ReloadSwiss RS 14 and Hodgdon TrailBoss.
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 2495 | <<locked>> | 82% | 33,446 psi | 85% | 2379 fps | 100% |
| Accurate 4064 | <<locked>> | 84% | 33,910 psi | 87% | 2408 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 34,142 psi | 87% | 2408 fps | 96.8% |
| Alliant Reloder-17 | <<locked>> | 88% | 34,098 psi | 87% | 2470 fps | 96.1% |
| Bofors RP3 | <<locked>> | 84% | 33,141 psi | 85% | 2398 fps | 96.7% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 35,215 psi | 90% | 2461 fps | 97.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,968 psi | 87% | 1660 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 35,418 psi | 90% | 2448 fps | 96.3% |
| Lovex S062 | <<locked>> | 82% | 33,997 psi | 87% | 2375 fps | 97.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,098 psi | 87% | 1699 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 33,968 psi | 87% | 2480 fps | 98.5% |
| Rottweil R 903 | <<locked>> | 86% | 33,257 psi | 85% | 2395 fps | 96.4% |
| Shooters World Precision | <<locked>> | 82% | 33,997 psi | 87% | 2375 fps | 97.2% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 35,273 psi | 90% | 2451 fps | 96% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 34,795 psi | 89% | 2333 fps | 99.7% |
| Somchem S355 | <<locked>> | 86% | 34,621 psi | 88% | 2408 fps | 96.6% |
| Somchem S365 | <<locked>> | 96% | 34,374 psi | 88% | 2484 fps | 97.9% |
| Vihtavuori N135 | <<locked>> | 82% | 34,766 psi | 89% | 2392 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 35,389 psi | 90% | 2402 fps | 98.1% |
| Vihtavuori N540 | <<locked>> | 82% | 34,606 psi | 88% | 2385 fps | 99.1% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 34,360 psi | 88% | 2375 fps | 96.4% |
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% | 31,038 psi | 79% | 2329 fps | 99.9% |
| Accurate 4064 | <<locked>> | 80% | 29,443 psi | 75% | 2310 fps | 98.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 29,689 psi | 76% | 2303 fps | 95.1% |
| Alliant Reloder-17 | <<locked>> | 86% | 31,720 psi | 81% | 2411 fps | 95% |
| Bofors RP3 | <<locked>> | 82% | 30,835 psi | 79% | 2346 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 32,706 psi | 84% | 2405 fps | 96.4% |
| Hodgdon TrailBoss | 33.6 gr | 80% | 25,005 psi | 64% | 1486 fps | 100% |
| IMR 4895 | <<locked>> | 80% | 33,025 psi | 84% | 2395 fps | 95.4% |
| Lovex S062 | <<locked>> | 80% | 31,778 psi | 81% | 2326 fps | 96.4% |
| ReloadSwiss RS 14 | 34.3 gr | 80% | 25,106 psi | 64% | 1522 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 27,586 psi | 70% | 2306 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 84% | 31,024 psi | 79% | 2343 fps | 95.5% |
| Shooters World Precision | <<locked>> | 80% | 31,778 psi | 81% | 2326 fps | 96.4% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 32,880 psi | 84% | 2398 fps | 95.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,429 psi | 78% | 2244 fps | 99% |
| Somchem S355 | <<locked>> | 84% | 32,285 psi | 82% | 2359 fps | 95.7% |
| Somchem S365 | 111.7 gr | 90% | 28,094 psi | 72% | 2323 fps | 95.1% |
| Vihtavuori N135 | <<locked>> | 80% | 32,474 psi | 83% | 2349 fps | 100% |
| Vihtavuori N150 | <<locked>> | 82% | 28,674 psi | 73% | 2251 fps | 95.8% |
| Vihtavuori N540 | <<locked>> | 80% | 32,343 psi | 83% | 2336 fps | 98.6% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 32,039 psi | 82% | 2323 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 42 powders for .470 N.E. loaded with the .475 | 380gr | Rim Rock LBT?WFN Gas Check. Alliant Reloder-26 delivers the highest muzzle velocity at 2,493 fps; across all powders the maximum-charge window runs from 1,660 fps to 2,493 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 42 of the 42 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (270 MPa), the top charges use 79–90 %, leaving at least 10 % headroom. Alliant Reloder-23, Alliant Reloder-26, Hodgdon TrailBoss 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. Somchem S365, ReloadSwiss RS 14, Hodgdon TrailBoss rank at the top here: for .470 N.E. with the .475 | 380gr | Rim Rock LBT?WFN Gas Check they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 4350, Alliant Power Pro 2000-MR, Alliant Reloder-16 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.