Load Specifications
Load data in caliber .375 Win. with .375 | 175gr | Lehigh Defense Match Solid bullet and 9 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon LilGun, Accurate No. 11 FS and Lovex S040.
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: 22"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 11 FS | <<locked>> | 98% | 49,153 psi | 89% | 2356 fps | 97.5% |
| ADI AR 2205ᴾ | <<locked>> | 100% | 49,284 psi | 89% | 2280 fps | 98.9% |
| Hodgdon LilGun | <<locked>> | 94% | 47,732 psi | 87% | 2425 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 24,279 psi | 44% | 1352 fps | 100% |
| Lovex S040 | <<locked>> | 92% | 48,051 psi | 87% | 2277 fps | 100% |
| Lovex S053ᴾ | <<locked>> | 100% | 34,809 psi | 63% | 2162 fps | 96.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 23,279 psi | 42% | 1385 fps | 100% |
| SNPE Vectan BA6 1/2ᴾ | <<locked>> | 100% | 32,793 psi | 60% | 2057 fps | 100% |
| Vihtavuori N110ᴾ | <<locked>> | 100% | 41,611 psi | 76% | 2251 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 22"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 11 FS | 27.6 gr | 90% | 37,956 psi | 69% | 2188 fps | 95% |
| ADI AR 2205 | <<locked>> | 86% | 32,561 psi | 59% | 2018 fps | 95.4% |
| Hodgdon LilGun | 24.7 gr | 80% | 29,182 psi | 53% | 2133 fps | 99.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 17,434 psi | 32% | 1207 fps | 100% |
| Lovex S040 | 21.2 gr | 80% | 33,953 psi | 62% | 2060 fps | 99.3% |
| Lovex S053 | <<locked>> | 96% | 31,227 psi | 57% | 2090 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 16,839 psi | 31% | 1234 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 19,174 psi | 35% | 1736 fps | 97.1% |
| Vihtavuori N110 | <<locked>> | 80% | 22,931 psi | 42% | 1886 fps | 97.2% |
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 9 powders for .375 Win. loaded with the .375 | 175gr | Lehigh Defense Match Solid. Hodgdon LilGun delivers the highest muzzle velocity at 2,425 fps; across all powders the maximum-charge window runs from 1,352 fps to 2,425 fps. ADI AR 2205 gives the best case fill at 100 %, and 9 of the 9 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 42–89 %, leaving at least 11 % headroom. ADI AR 2205, Hodgdon TrailBoss, Lovex S053 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, Accurate No. 11 FS, Lovex S040 rank at the top here: for .375 Win. with the .375 | 175gr | Lehigh Defense Match Solid 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.