Load Specifications
Load data in caliber .375 Raptor with .375 | 250gr | Alaska Bullet Works Kodiak SP SPBC bullet and 43 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are SNPE Vectan SP 10, Hodgdon H335 and Hodgdon H322.
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 1680 | <<locked>> | 88% | 49,661 psi | 86% | 2224 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 45,150 psi | 78% | 2244 fps | 99.4% |
| Accurate 2460ᴾ | <<locked>> | 100% | 50,343 psi | 87% | 2333 fps | 98% |
| Accurate 2495ᴾ | <<locked>> | 100% | 33,272 psi | 57% | 2129 fps | 97.7% |
| Accurate 2520ᴾ | <<locked>> | 100% | 43,366 psi | 75% | 2274 fps | 96.2% |
| Accurate LT-30 | <<locked>> | 94% | 50,212 psi | 87% | 2228 fps | 99% |
| Accurate LT-32 | <<locked>> | 94% | 50,763 psi | 88% | 2234 fps | 97.5% |
| ADI AR 2205 | <<locked>> | 82% | 52,373 psi | 90% | 2146 fps | 100% |
| ADI AR 2207 | <<locked>> | 94% | 52,141 psi | 90% | 2303 fps | 100% |
| ADI AR 2219 | <<locked>> | 96% | 50,618 psi | 87% | 2352 fps | 99% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 41,771 psi | 72% | 2267 fps | 100% |
| Alliant Reloder-10xᴾ | <<locked>> | 100% | 52,170 psi | 90% | 2349 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 92% | 51,416 psi | 89% | 2280 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 96% | 51,459 psi | 89% | 2267 fps | 99.3% |
| Hodgdon Benchmarkᴾ | <<locked>> | 100% | 48,617 psi | 84% | 2257 fps | 95.9% |
| Hodgdon H322ᴾ | <<locked>> | 100% | 51,706 psi | 89% | 2365 fps | 99.1% |
| Hodgdon H335 | <<locked>> | 98% | 49,472 psi | 85% | 2343 fps | 98% |
| Hodgdon H4198 | <<locked>> | 90% | 49,516 psi | 85% | 2231 fps | 98.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,531 psi | 54% | 1348 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 39,595 psi | 68% | 2241 fps | 97.9% |
| IMR 4198 | <<locked>> | 98% | 51,227 psi | 88% | 2290 fps | 100% |
| IMR 4227 | <<locked>> | 86% | 49,966 psi | 86% | 2208 fps | 100% |
| Lovex D073.4 | <<locked>> | 94% | 51,692 psi | 89% | 2349 fps | 97.6% |
| Lovex D073.5ᴾ | <<locked>> | 100% | 50,415 psi | 87% | 2329 fps | 96.7% |
| Lovex S053 | <<locked>> | 88% | 51,010 psi | 88% | 2198 fps | 100% |
| Norma 200 | <<locked>> | 94% | 49,443 psi | 85% | 2297 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 40,176 psi | 69% | 2208 fps | 96.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,285 psi | 54% | 1381 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 88% | 52,243 psi | 90% | 2274 fps | 100% |
| ReloadSwiss RS 40ᴾ | <<locked>> | 100% | 51,576 psi | 89% | 2346 fps | 97.4% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 44,527 psi | 77% | 2241 fps | 97% |
| Shooters World AR Plus | <<locked>> | 94% | 51,692 psi | 89% | 2349 fps | 97.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 92% | 52,141 psi | 90% | 2077 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 96% | 50,966 psi | 88% | 2356 fps | 98.2% |
| SNPE Vectan SP 3 | <<locked>> | 98% | 50,285 psi | 87% | 2313 fps | 99.5% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 44,541 psi | 77% | 2182 fps | 96.9% |
| Somchem S335ᴾ | <<locked>> | 100% | 42,627 psi | 73% | 2182 fps | 97.6% |
| Vihtavuori N110 | <<locked>> | 82% | 50,691 psi | 87% | 2116 fps | 100% |
| Vihtavuori N120 | <<locked>> | 94% | 52,272 psi | 90% | 2264 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 50,198 psi | 87% | 2270 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 43,482 psi | 75% | 2188 fps | 99.1% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 35,752 psi | 62% | 2146 fps | 98% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 38,508 psi | 66% | 2152 fps | 95.9% |
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 1680 | <<locked>> | 80% | 38,363 psi | 66% | 2064 fps | 99% |
| Accurate 2015 | <<locked>> | 84% | 27,557 psi | 48% | 1929 fps | 95.1% |
| Accurate 2460 | <<locked>> | 92% | 38,232 psi | 66% | 2156 fps | 95.3% |
| Accurate 2495 | <<locked>> | 94% | 27,209 psi | 47% | 2005 fps | 95.6% |
| Accurate 2520 | <<locked>> | 98% | 40,321 psi | 70% | 2228 fps | 95.4% |
| Accurate LT-30 | <<locked>> | 80% | 33,185 psi | 57% | 1955 fps | 95.3% |
| Accurate LT-32 | <<locked>> | 86% | 40,074 psi | 69% | 2073 fps | 95.2% |
| ADI AR 2205 | <<locked>> | 80% | 49,559 psi | 85% | 2113 fps | 100% |
| ADI AR 2207 | <<locked>> | 80% | 34,258 psi | 59% | 2051 fps | 100% |
| ADI AR 2219 | <<locked>> | 84% | 34,142 psi | 59% | 2083 fps | 95.3% |
| Alliant AR-Comp | <<locked>> | 82% | 24,120 psi | 42% | 1893 fps | 95.8% |
| Alliant Reloder-10x | <<locked>> | 80% | 28,427 psi | 49% | 1955 fps | 96.8% |
| Alliant Reloder-7 | <<locked>> | 80% | 35,534 psi | 61% | 2044 fps | 99% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 33,040 psi | 57% | 1985 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 98% | 45,818 psi | 79% | 2218 fps | 95.3% |
| Hodgdon H322 | 39.2 gr | 86% | 33,272 psi | 57% | 2067 fps | 95% |
| Hodgdon H335 | 43.9 gr | 90% | 38,058 psi | 66% | 2162 fps | 95.4% |
| Hodgdon H4198 | <<locked>> | 80% | 36,637 psi | 63% | 2028 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,134 psi | 40% | 1201 fps | 100% |
| IMR 3031 | <<locked>> | 92% | 31,154 psi | 54% | 2073 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 30,893 psi | 53% | 1959 fps | 98.3% |
| IMR 4227 | <<locked>> | 80% | 41,510 psi | 72% | 2093 fps | 100% |
| Lovex D073.4 | <<locked>> | 88% | 41,989 psi | 72% | 2215 fps | 95.6% |
| Lovex D073.5 | <<locked>> | 96% | 43,685 psi | 75% | 2238 fps | 95.2% |
| Lovex S053 | <<locked>> | 80% | 40,886 psi | 70% | 2064 fps | 100% |
| Norma 200 | <<locked>> | 80% | 31,995 psi | 55% | 2021 fps | 98.5% |
| Norma 202 | <<locked>> | 98% | 37,768 psi | 65% | 2165 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,090 psi | 40% | 1234 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 40,814 psi | 70% | 2119 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 42,598 psi | 73% | 2215 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 94% | 37,463 psi | 65% | 2123 fps | 95.1% |
| Shooters World AR Plus | <<locked>> | 88% | 41,989 psi | 72% | 2215 fps | 95.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 38,189 psi | 66% | 1906 fps | 100% |
| SNPE Vectan SP 10 | 42 gr | 86% | 36,666 psi | 63% | 2133 fps | 95% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 31,053 psi | 54% | 1995 fps | 95.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 37,086 psi | 64% | 2064 fps | 95% |
| Somchem S335 | <<locked>> | 92% | 33,547 psi | 58% | 2028 fps | 95% |
| Vihtavuori N110 | <<locked>> | 80% | 47,790 psi | 82% | 2083 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 34,476 psi | 59% | 2021 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 27,717 psi | 48% | 1893 fps | 96.1% |
| Vihtavuori N133 | <<locked>> | 86% | 28,718 psi | 50% | 1923 fps | 95.1% |
| Vihtavuori N135 | <<locked>> | 92% | 28,050 psi | 48% | 1982 fps | 95.3% |
| Vihtavuori N140 | <<locked>> | 98% | 36,274 psi | 63% | 2113 fps | 95.2% |
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 43 powders for .375 Raptor loaded with the .375 | 250gr | Alaska Bullet Works Kodiak SP SPBC. Hodgdon H322 delivers the highest muzzle velocity at 2,365 fps; across all powders the maximum-charge window runs from 1,348 fps to 2,365 fps. Accurate 2015 gives the best case fill at 100 %, and 43 of the 43 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (400 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 250.0 gr projectile in 0.375" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Accurate 2015, Accurate 2460, Accurate 2495 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. SNPE Vectan SP 10, Hodgdon H335, Hodgdon H322 rank at the top here: for .375 Raptor with the .375 | 250gr | Alaska Bullet Works Kodiak SP SPBC 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.