Load Specifications
Load data in caliber .400 Legend with .400 | 190gr | Barnes TSX FB bullet and 18 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon LilGun, Lovex S040 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.
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Max Load - Barrel Length: 20"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Hodgdon LilGunᴾ | <<locked>> | 100% | 39,929 psi | 89% | 2270 fps | 99% |
| Hodgdon LilGun | <<locked>> | 96% | 39,291 psi | 87% | 2313 fps | 99.4% |
| Hodgdon LilGunᴾ | <<locked>> | 100% | 39,929 psi | 89% | 2270 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 21,611 psi | 48% | 1276 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 22,481 psi | 50% | 1322 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 21,611 psi | 48% | 1276 fps | 100% |
| Lovex S040 | <<locked>> | 94% | 39,363 psi | 87% | 2087 fps | 97.5% |
| Lovex S040 | <<locked>> | 92% | 40,219 psi | 89% | 2152 fps | 98.4% |
| Lovex S040 | <<locked>> | 94% | 39,363 psi | 87% | 2087 fps | 97.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 20,610 psi | 46% | 1306 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 21,437 psi | 48% | 1352 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 20,610 psi | 46% | 1306 fps | 100% |
| SNPE Vectan BA6 1/2ᴾ | <<locked>> | 100% | 24,671 psi | 55% | 1827 fps | 95.5% |
| SNPE Vectan BA6 1/2ᴾ | <<locked>> | 100% | 27,050 psi | 60% | 1929 fps | 97.5% |
| SNPE Vectan BA6 1/2ᴾ | <<locked>> | 100% | 24,671 psi | 55% | 1827 fps | 95.5% |
| Vihtavuori N110ᴾ | <<locked>> | 100% | 30,095 psi | 67% | 1998 fps | 96% |
| Vihtavuori N110ᴾ | <<locked>> | 100% | 33,562 psi | 75% | 2113 fps | 97.9% |
| Vihtavuori N110ᴾ | <<locked>> | 100% | 30,095 psi | 67% | 1998 fps | 96% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 20"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Hodgdon LilGun | 25.6 gr | 88% | 27,238 psi | 61% | 2024 fps | 95.4% |
| Hodgdon LilGun | 23.8 gr | 82% | 24,671 psi | 55% | 2008 fps | 95.3% |
| Hodgdon LilGun | 25.6 gr | 88% | 27,238 psi | 61% | 2024 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 15,592 psi | 35% | 1135 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 16,433 psi | 37% | 1184 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 15,592 psi | 35% | 1135 fps | 100% |
| Lovex S040 | 21.4 gr | 86% | 31,285 psi | 70% | 1939 fps | 95.1% |
| Lovex S040 | 19.9 gr | 80% | 28,631 psi | 64% | 1932 fps | 95.1% |
| Lovex S040 | 21.4 gr | 86% | 31,285 psi | 70% | 1939 fps | 95.1% |
| ReloadSwiss RS 14 | 7.7 gr | 80% | 15,040 psi | 33% | 1165 fps | 100% |
| ReloadSwiss RS 14 | 7.7 gr | 80% | 15,606 psi | 35% | 1204 fps | 100% |
| ReloadSwiss RS 14 | 7.7 gr | 80% | 15,040 psi | 33% | 1165 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 98% | 23,699 psi | 53% | 1801 fps | 95% |
| SNPE Vectan BA6 1/2 | <<locked>> | 92% | 22,031 psi | 49% | 1801 fps | 95.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 98% | 23,699 psi | 53% | 1801 fps | 95% |
| Vihtavuori N110 | <<locked>> | 98% | 28,674 psi | 64% | 1969 fps | 95.4% |
| Vihtavuori N110 | <<locked>> | 92% | 26,774 psi | 59% | 1972 fps | 95.6% |
| Vihtavuori N110 | <<locked>> | 98% | 28,674 psi | 64% | 1969 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 18 powders for .400 Legend loaded with the .400 | 190gr | Barnes TSX FB. Hodgdon LilGun delivers the highest muzzle velocity at 2,313 fps; across all powders the maximum-charge window runs from 1,276 fps to 2,313 fps. Hodgdon LilGun gives the best case fill at 100 %, and 18 of the 18 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (310 MPa), the top charges use 46–89 %, leaving at least 11 % headroom. Hodgdon LilGun, Hodgdon LilGun, 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. Hodgdon LilGun, Lovex S040, ReloadSwiss RS 14 rank at the top here: for .400 Legend with the .400 | 190gr | Barnes TSX FB 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.