Load Specifications
Load data in caliber .375 Whelen with .375 | 230gr | CutEdge ESP Raptor bullet and 19 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 5744 | <<locked>> | 90% | 49,705 psi | 90% | 2018 fps | 97% |
| Accurate No. 11 FS | <<locked>> | 92% | 47,036 psi | 85% | 1982 fps | 99.1% |
| ADI AR 2205 | <<locked>> | 96% | 49,734 psi | 90% | 1942 fps | 100% |
| ADI AR 2207ᴾ | <<locked>> | 100% | 32,155 psi | 58% | 1864 fps | 96% |
| Hodgdon LilGun | <<locked>> | 90% | 49,647 psi | 90% | 2054 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 26,034 psi | 47% | 1148 fps | 100% |
| IMR 4227ᴾ | <<locked>> | 100% | 43,526 psi | 79% | 1936 fps | 97.4% |
| Lovex D060 | <<locked>> | 96% | 49,153 psi | 89% | 2011 fps | 96.9% |
| Lovex D063 | <<locked>> | 92% | 48,791 psi | 89% | 1998 fps | 96.8% |
| Lovex S040 | <<locked>> | 88% | 48,544 psi | 88% | 1919 fps | 100% |
| Lovex S053ᴾ | <<locked>> | 100% | 40,408 psi | 73% | 1916 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 24,801 psi | 45% | 1171 fps | 100% |
| ReloadSwiss RS 36ᴾ | <<locked>> | 100% | 41,191 psi | 75% | 1952 fps | 96.8% |
| Shooters World Blackout | <<locked>> | 92% | 48,791 psi | 89% | 1998 fps | 96.8% |
| Shooters World Buffalo Rifle | <<locked>> | 96% | 49,153 psi | 89% | 2011 fps | 96.9% |
| Shooters World SOCOM | <<locked>> | 94% | 46,673 psi | 85% | 1962 fps | 96.9% |
| SNPE Vectan BA6 1/2ᴾ | <<locked>> | 100% | 37,811 psi | 69% | 1795 fps | 100% |
| Vihtavuori N110ᴾ | <<locked>> | 100% | 48,356 psi | 88% | 1962 fps | 100% |
| Vihtavuori N120ᴾ | <<locked>> | 100% | 32,851 psi | 60% | 1847 fps | 97.4% |
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>> | 84% | 41,423 psi | 75% | 1909 fps | 95.1% |
| Accurate No. 11 FS | 22.2 gr | 80% | 31,459 psi | 57% | 1762 fps | 96% |
| ADI AR 2205 | <<locked>> | 80% | 30,734 psi | 56% | 1683 fps | 97.6% |
| ADI AR 2207 | <<locked>> | 98% | 30,385 psi | 55% | 1831 fps | 95.4% |
| Hodgdon LilGun | 22.4 gr | 80% | 35,099 psi | 64% | 1883 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 18,826 psi | 34% | 1024 fps | 100% |
| IMR 4227 | <<locked>> | 92% | 34,693 psi | 63% | 1808 fps | 95.1% |
| Lovex D060 | <<locked>> | 90% | 41,423 psi | 75% | 1909 fps | 95.1% |
| Lovex D063 | <<locked>> | 88% | 42,830 psi | 78% | 1926 fps | 95.5% |
| Lovex S040 | 19.2 gr | 80% | 38,377 psi | 70% | 1801 fps | 100% |
| Lovex S053 | <<locked>> | 82% | 24,192 psi | 44% | 1634 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 18,014 psi | 33% | 1043 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 96% | 36,274 psi | 66% | 1880 fps | 95.5% |
| Shooters World Blackout | <<locked>> | 88% | 42,830 psi | 78% | 1926 fps | 95.5% |
| Shooters World Buffalo Rifle | <<locked>> | 90% | 41,423 psi | 75% | 1909 fps | 95.1% |
| Shooters World SOCOM | <<locked>> | 90% | 40,988 psi | 74% | 1890 fps | 95.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 22,133 psi | 40% | 1535 fps | 99.8% |
| Vihtavuori N110 | <<locked>> | 80% | 26,890 psi | 49% | 1670 fps | 99.9% |
| Vihtavuori N120 | <<locked>> | 94% | 27,340 psi | 50% | 1742 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 19 powders for .375 Whelen loaded with the .375 | 230gr | CutEdge ESP Raptor. Hodgdon LilGun delivers the highest muzzle velocity at 2,054 fps; across all powders the maximum-charge window runs from 1,148 fps to 2,054 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 45–90 %, leaving at least 10 % headroom. The 230.0 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. Hodgdon LilGun, Accurate No. 11 FS, Lovex S040 rank at the top here: for .375 Whelen with the .375 | 230gr | CutEdge ESP Raptor 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.