Load Specifications
Load data in caliber .375 Whelen with .375 | 210gr | Barnes X S bullet and 19 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate No. 11 FS, Vihtavuori N110 and ADI AR 2205.
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 5744 | <<locked>> | 88% | 48,805 psi | 89% | 2106 fps | 95.9% |
| Accurate No. 11 FS | <<locked>> | 92% | 49,516 psi | 90% | 2106 fps | 98.9% |
| ADI AR 2205 | <<locked>> | 94% | 48,979 psi | 89% | 2031 fps | 99.7% |
| ADI AR 2207ᴾ | <<locked>> | 100% | 35,172 psi | 64% | 1995 fps | 95.9% |
| Hodgdon LilGun | <<locked>> | 88% | 49,821 psi | 90% | 2159 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 27,688 psi | 50% | 1224 fps | 100% |
| IMR 4227ᴾ | <<locked>> | 100% | 45,847 psi | 83% | 2060 fps | 97% |
| Lovex D060 | <<locked>> | 94% | 48,805 psi | 89% | 2106 fps | 95.9% |
| Lovex D063 | <<locked>> | 90% | 48,124 psi | 87% | 2087 fps | 95.8% |
| Lovex S040 | <<locked>> | 86% | 48,008 psi | 87% | 2014 fps | 100% |
| Lovex S053ᴾ | <<locked>> | 100% | 43,468 psi | 79% | 2044 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 27,151 psi | 49% | 1253 fps | 100% |
| ReloadSwiss RS 36ᴾ | <<locked>> | 100% | 43,947 psi | 80% | 2080 fps | 96.5% |
| Shooters World Blackout | <<locked>> | 90% | 48,124 psi | 87% | 2087 fps | 95.8% |
| Shooters World Buffalo Rifle | <<locked>> | 94% | 48,805 psi | 89% | 2106 fps | 95.9% |
| Shooters World SOCOM | <<locked>> | 94% | 49,052 psi | 89% | 2087 fps | 96.5% |
| SNPE Vectan BA6 1/2ᴾ | <<locked>> | 100% | 40,727 psi | 74% | 1919 fps | 100% |
| Vihtavuori N110 | <<locked>> | 98% | 49,153 psi | 89% | 2070 fps | 100% |
| Vihtavuori N120ᴾ | <<locked>> | 100% | 35,708 psi | 65% | 1972 fps | 97.2% |
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 5744 | <<locked>> | 86% | 46,427 psi | 84% | 2073 fps | 95.4% |
| Accurate No. 11 FS | 23.3 gr | 80% | 34,418 psi | 62% | 1886 fps | 95.9% |
| ADI AR 2205 | 21.5 gr | 80% | 33,489 psi | 61% | 1804 fps | 97.5% |
| ADI AR 2207 | <<locked>> | 98% | 33,402 psi | 61% | 1959 fps | 95.3% |
| Hodgdon LilGun | <<locked>> | 80% | 38,870 psi | 71% | 2021 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 20,581 psi | 37% | 1093 fps | 100% |
| IMR 4227 | <<locked>> | 94% | 39,146 psi | 71% | 1962 fps | 95.4% |
| Lovex D060 | <<locked>> | 92% | 46,427 psi | 84% | 2073 fps | 95.4% |
| Lovex D063 | <<locked>> | 88% | 45,121 psi | 82% | 2047 fps | 95.1% |
| Lovex S040 | <<locked>> | 80% | 40,770 psi | 74% | 1919 fps | 100% |
| Lovex S053 | <<locked>> | 82% | 27,412 psi | 50% | 1762 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 20,320 psi | 37% | 1122 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 96% | 39,450 psi | 72% | 2011 fps | 95.4% |
| Shooters World Blackout | <<locked>> | 88% | 45,121 psi | 82% | 2047 fps | 95.1% |
| Shooters World Buffalo Rifle | <<locked>> | 92% | 46,427 psi | 84% | 2073 fps | 95.4% |
| Shooters World SOCOM | <<locked>> | 90% | 43,352 psi | 79% | 2011 fps | 95.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 24,903 psi | 45% | 1650 fps | 99.9% |
| Vihtavuori N110 | 19.3 gr | 80% | 30,327 psi | 55% | 1798 fps | 99.9% |
| Vihtavuori N120 | <<locked>> | 94% | 30,472 psi | 55% | 1873 fps | 95.5% |
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 19 powders for .375 Whelen loaded with the .375 | 210gr | Barnes X S. Hodgdon LilGun delivers the highest muzzle velocity at 2,159 fps; across all powders the maximum-charge window runs from 1,224 fps to 2,159 fps. ADI AR 2207 gives the best case fill at 100 %, and 19 of the 19 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 49–90 %, leaving at least 10 % headroom. The 210.0 gr projectile in 0.375" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. ADI AR 2207, Hodgdon TrailBoss, IMR 4227 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. Accurate No. 11 FS, Vihtavuori N110, ADI AR 2205 rank at the top here: for .375 Whelen with the .375 | 210gr | Barnes X S they combine a high case fill with complete burn and sit in the upper velocity band. Hodgdon TrailBoss, ReloadSwiss RS 14 stay subsonic at start load. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.