Load Specifications
Load data in caliber .350 Legend with .355 | 118gr | Lehigh Defense Xtreme Defense bullet and 14 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 |
|---|---|---|---|---|---|---|
| ADI APS 450 | <<locked>> | 84% | 48,791 psi | 89% | 1919 fps | 100% |
| ADI APS 450 | <<locked>> | 84% | 48,791 psi | 89% | 1919 fps | 100% |
| Hodgdon LilGunᴾ | <<locked>> | 100% | 44,498 psi | 81% | 2612 fps | 99.7% |
| Hodgdon LilGunᴾ | <<locked>> | 100% | 44,498 psi | 81% | 2612 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 21,582 psi | 39% | 1490 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 21,582 psi | 39% | 1490 fps | 100% |
| Lovex S040 | <<locked>> | 98% | 46,978 psi | 85% | 2480 fps | 99% |
| Lovex S040 | <<locked>> | 98% | 46,978 psi | 85% | 2480 fps | 99% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 20,160 psi | 37% | 1512 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 20,160 psi | 37% | 1512 fps | 100% |
| SNPE Vectan BA6 1/2ᴾ | <<locked>> | 100% | 25,831 psi | 47% | 2100 fps | 96.3% |
| SNPE Vectan BA6 1/2ᴾ | <<locked>> | 100% | 25,831 psi | 47% | 2100 fps | 96.3% |
| Vihtavuori N110ᴾ | <<locked>> | 100% | 32,358 psi | 59% | 2303 fps | 96.9% |
| Vihtavuori N110ᴾ | <<locked>> | 100% | 32,358 psi | 59% | 2303 fps | 96.9% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 20"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| ADI APS 450 | <<locked>> | 80% | 44,788 psi | 81% | 1867 fps | 100% |
| ADI APS 450 | <<locked>> | 80% | 44,788 psi | 81% | 1867 fps | 100% |
| Hodgdon LilGun | 23 gr | 86% | 26,948 psi | 49% | 2274 fps | 95.6% |
| Hodgdon LilGun | 23 gr | 86% | 26,948 psi | 49% | 2274 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 15,185 psi | 28% | 1325 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 15,185 psi | 28% | 1325 fps | 100% |
| Lovex S040 | 19.3 gr | 84% | 30,922 psi | 56% | 2195 fps | 95.2% |
| Lovex S040 | 19.3 gr | 84% | 30,922 psi | 56% | 2195 fps | 95.2% |
| ReloadSwiss RS 14 | 7.1 gr | 80% | 14,620 psi | 27% | 1355 fps | 100% |
| ReloadSwiss RS 14 | 7.1 gr | 80% | 14,620 psi | 27% | 1355 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 96% | 23,395 psi | 43% | 2034 fps | 95.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 96% | 23,395 psi | 43% | 2034 fps | 95.1% |
| Vihtavuori N110 | <<locked>> | 96% | 28,631 psi | 52% | 2224 fps | 95.6% |
| Vihtavuori N110 | <<locked>> | 96% | 28,631 psi | 52% | 2224 fps | 95.6% |
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 14 powders for .350 Legend loaded with the .355 | 118gr | Lehigh Defense Xtreme Defense. Hodgdon LilGun delivers the highest muzzle velocity at 2,612 fps; across all powders the maximum-charge window runs from 1,490 fps to 2,612 fps. Hodgdon LilGun gives the best case fill at 100 %, and 14 of the 14 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (379 MPa), the top charges use 37–89 %, 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 .350 Legend with the .355 | 118gr | Lehigh Defense Xtreme Defense 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.