Load Specifications
Load data in caliber .375 H&H Mag. with .375 | 250gr | Alaska Bullet Works Kodiak SP SPBC bullet and 92 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 52 and Hodgdon LEVERevolution.
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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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 88% | 53,345 psi | 86% | 2615 fps | 100% |
| Accurate 2460 | <<locked>> | 86% | 55,288 psi | 89% | 2684 fps | 100% |
| Accurate 2495 | <<locked>> | 94% | 53,896 psi | 86% | 2671 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 53,171 psi | 85% | 2690 fps | 100% |
| Accurate 4064 | <<locked>> | 96% | 53,548 psi | 86% | 2707 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 45,643 psi | 73% | 2654 fps | 97.1% |
| Accurate LT-30 | <<locked>> | 82% | 53,142 psi | 85% | 2562 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 53,534 psi | 86% | 2582 fps | 100% |
| ADI AR 2206H | <<locked>> | 92% | 55,666 psi | 89% | 2743 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 96% | 53,214 psi | 85% | 2687 fps | 98.8% |
| ADI AR 2219 | <<locked>> | 82% | 53,606 psi | 86% | 2674 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 54,868 psi | 88% | 2700 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 90% | 54,694 psi | 88% | 2684 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 53,113 psi | 85% | 2753 fps | 99.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 55,042 psi | 88% | 2844 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 55,593 psi | 89% | 2756 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 84% | 53,243 psi | 85% | 2618 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 53,200 psi | 85% | 2726 fps | 99% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 45,745 psi | 73% | 2664 fps | 97.2% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 52,707 psi | 85% | 2812 fps | 99.6% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 55,463 psi | 89% | 2602 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 55,288 psi | 89% | 2756 fps | 98.8% |
| Bofors RP3 | <<locked>> | 98% | 56,260 psi | 90% | 2772 fps | 99.9% |
| Hodgdon Benchmark | <<locked>> | 88% | 53,882 psi | 86% | 2641 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 90% | 53,635 psi | 86% | 2730 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 88% | 55,535 psi | 89% | 2818 fps | 99.3% |
| Hodgdon H322 | <<locked>> | 86% | 55,724 psi | 89% | 2703 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 53,330 psi | 86% | 2680 fps | 100% |
| Hodgdon H380 | <<locked>> | 96% | 54,143 psi | 87% | 2730 fps | 98.1% |
| Hodgdon H4895 | <<locked>> | 92% | 56,202 psi | 90% | 2753 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 41,843 psi | 67% | 2552 fps | 97.8% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 54,694 psi | 88% | 2782 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,722 psi | 56% | 1624 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 54,056 psi | 87% | 2707 fps | 99.6% |
| IMR 3031 | <<locked>> | 92% | 55,317 psi | 89% | 2743 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 56,086 psi | 90% | 2720 fps | 99.3% |
| IMR 4198 | <<locked>> | 84% | 53,635 psi | 86% | 2582 fps | 100% |
| IMR 4451 Enduronᴾ | <<locked>> | 100% | 55,767 psi | 89% | 2713 fps | 96.1% |
| IMR 4831ᴾ | <<locked>> | 100% | 43,700 psi | 70% | 2602 fps | 96.7% |
| IMR 4895 | <<locked>> | 94% | 54,534 psi | 87% | 2759 fps | 99.5% |
| IMR 8208 XBR | <<locked>> | 90% | 54,868 psi | 88% | 2700 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 86% | 55,245 psi | 89% | 2690 fps | 100% |
| Lovex D073.6 | <<locked>> | 92% | 54,665 psi | 88% | 2723 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 55,941 psi | 90% | 2677 fps | 99.5% |
| Lovex S062 | <<locked>> | 96% | 55,332 psi | 89% | 2717 fps | 99.9% |
| Lovex S065ᴾ | <<locked>> | 100% | 51,082 psi | 82% | 2654 fps | 96.7% |
| Norma 201 | <<locked>> | 92% | 54,215 psi | 87% | 2690 fps | 99.9% |
| Norma 202 | <<locked>> | 92% | 54,650 psi | 88% | 2697 fps | 100% |
| Norma 203B | <<locked>> | 96% | 55,695 psi | 89% | 2762 fps | 99.5% |
| Norma URPᴾ | <<locked>> | 100% | 45,876 psi | 74% | 2651 fps | 97% |
| Ramshot Big Game | <<locked>> | 96% | 56,202 psi | 90% | 2792 fps | 99.5% |
| Ramshot TAC | <<locked>> | 90% | 55,506 psi | 89% | 2713 fps | 97.7% |
| Ramshot Wild Boar | <<locked>> | 90% | 54,723 psi | 88% | 2733 fps | 99.4% |
| Ramshot X-Terminator | <<locked>> | 86% | 52,823 psi | 85% | 2654 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,027 psi | 56% | 1663 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 54,766 psi | 88% | 2687 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 96% | 54,897 psi | 88% | 2710 fps | 96.7% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 52,997 psi | 85% | 2789 fps | 99% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 56,275 psi | 90% | 2874 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 45,556 psi | 73% | 2674 fps | 96.7% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 46,760 psi | 75% | 2690 fps | 96% |
| Rottweil R 901 | <<locked>> | 90% | 55,463 psi | 89% | 2680 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 54,665 psi | 88% | 2687 fps | 99.9% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 55,898 psi | 90% | 2759 fps | 99.8% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 51,082 psi | 82% | 2654 fps | 96.7% |
| Shooters World Match Rifle | <<locked>> | 92% | 54,665 psi | 88% | 2723 fps | 100% |
| Shooters World Precision | <<locked>> | 96% | 55,332 psi | 89% | 2717 fps | 99.9% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 54,549 psi | 87% | 2657 fps | 99.7% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 53,853 psi | 86% | 2684 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 54,157 psi | 87% | 2769 fps | 99.4% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 54,259 psi | 87% | 2641 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 53,577 psi | 86% | 2690 fps | 97.9% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 54,099 psi | 87% | 2717 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 53,229 psi | 85% | 2598 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 56,115 psi | 90% | 2635 fps | 100% |
| Somchem S321 | <<locked>> | 88% | 56,217 psi | 90% | 2736 fps | 100% |
| Somchem S335 | <<locked>> | 92% | 55,419 psi | 89% | 2638 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 52,982 psi | 85% | 2684 fps | 99.2% |
| Somchem S355ᴾ | <<locked>> | 100% | 56,318 psi | 90% | 2756 fps | 99.7% |
| Somchem S365ᴾ | <<locked>> | 100% | 40,799 psi | 65% | 2602 fps | 98.9% |
| Vihtavuori N130 | <<locked>> | 86% | 53,127 psi | 85% | 2572 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 53,171 psi | 85% | 2585 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 53,780 psi | 86% | 2661 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 55,143 psi | 88% | 2677 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 54,636 psi | 88% | 2697 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 48,312 psi | 77% | 2654 fps | 97.4% |
| Vihtavuori N530 | <<locked>> | 90% | 55,608 psi | 89% | 2703 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 94% | 53,388 psi | 86% | 2674 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 47,398 psi | 76% | 2657 fps | 97.1% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 49,458 psi | 79% | 2641 fps | 99.2% |
| Winchester 748 | <<locked>> | 90% | 54,810 psi | 88% | 2746 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 92% | 53,592 psi | 86% | 2723 fps | 99.6% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 41,611 psi | 67% | 2438 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 45,310 psi | 73% | 2536 fps | 99.9% |
| Accurate 2495 | <<locked>> | 80% | 34,214 psi | 55% | 2352 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 40,335 psi | 65% | 2487 fps | 99.4% |
| Accurate 4064 | <<locked>> | 80% | 32,343 psi | 52% | 2333 fps | 98.7% |
| Accurate 4350 | <<locked>> | 96% | 39,639 psi | 64% | 2543 fps | 95.5% |
| Accurate LT-30 | <<locked>> | 80% | 49,951 psi | 80% | 2516 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 50,343 psi | 81% | 2536 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 38,232 psi | 61% | 2441 fps | 96.5% |
| ADI AR 2208 | <<locked>> | 84% | 36,956 psi | 59% | 2395 fps | 95.2% |
| ADI AR 2219 | <<locked>> | 80% | 50,125 psi | 80% | 2625 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 40,248 psi | 65% | 2457 fps | 98.2% |
| Alliant AR-Comp | <<locked>> | 80% | 39,204 psi | 63% | 2461 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 46,514 psi | 75% | 2644 fps | 98.9% |
| Alliant Power Pro 2000-MR | 68.4 gr | 84% | 39,233 psi | 63% | 2549 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 31,575 psi | 51% | 2313 fps | 95.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 47,065 psi | 75% | 2533 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 36,376 psi | 58% | 2421 fps | 95.2% |
| Alliant Reloder-16 | <<locked>> | 96% | 40,451 psi | 65% | 2556 fps | 95.6% |
| Alliant Reloder-17 | <<locked>> | 88% | 35,520 psi | 57% | 2477 fps | 95.8% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 49,023 psi | 79% | 2516 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 39,624 psi | 64% | 2487 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 30,922 psi | 50% | 2310 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 42,366 psi | 68% | 2454 fps | 99% |
| Hodgdon BL-C2 | <<locked>> | 80% | 38,305 psi | 61% | 2467 fps | 98.3% |
| Hodgdon CFE223 | <<locked>> | 80% | 42,003 psi | 67% | 2592 fps | 97% |
| Hodgdon H322 | <<locked>> | 80% | 45,774 psi | 73% | 2559 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 46,572 psi | 75% | 2582 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 41,742 psi | 67% | 2520 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 38,493 psi | 62% | 2451 fps | 97.2% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 34,824 psi | 56% | 2405 fps | 95.6% |
| Hodgdon LEVERevolution | 63.9 gr | 80% | 34,403 psi | 55% | 2411 fps | 96.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,715 psi | 41% | 1447 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 37,057 psi | 59% | 2405 fps | 96.6% |
| IMR 3031 | <<locked>> | 80% | 37,333 psi | 60% | 2457 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 36,361 psi | 58% | 2379 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 47,805 psi | 77% | 2503 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 98% | 52,518 psi | 84% | 2664 fps | 95.4% |
| IMR 4831 | <<locked>> | 96% | 38,464 psi | 62% | 2500 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 34,925 psi | 56% | 2402 fps | 95.5% |
| IMR 8208 XBR | <<locked>> | 80% | 40,248 psi | 65% | 2457 fps | 98.2% |
| Lovex D073.5 | <<locked>> | 80% | 45,078 psi | 72% | 2539 fps | 99.5% |
| Lovex D073.6 | <<locked>> | 80% | 36,622 psi | 59% | 2425 fps | 98.8% |
| Lovex S060 | <<locked>> | 80% | 38,928 psi | 62% | 2388 fps | 96.7% |
| Lovex S062 | <<locked>> | 80% | 33,808 psi | 54% | 2336 fps | 96.6% |
| Lovex S065 | <<locked>> | 96% | 45,179 psi | 72% | 2556 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 37,550 psi | 60% | 2402 fps | 97.6% |
| Norma 202 | <<locked>> | 80% | 37,536 psi | 60% | 2415 fps | 99.4% |
| Norma 203B | <<locked>> | 82% | 35,737 psi | 57% | 2411 fps | 95.7% |
| Norma URP | <<locked>> | 96% | 40,292 psi | 65% | 2546 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 82% | 35,215 psi | 56% | 2418 fps | 95.1% |
| Ramshot TAC | <<locked>> | 84% | 45,745 psi | 73% | 2556 fps | 95.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 39,175 psi | 63% | 2470 fps | 96.7% |
| Ramshot X-Terminator | <<locked>> | 80% | 43,497 psi | 70% | 2500 fps | 97.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,933 psi | 42% | 1483 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 45,136 psi | 72% | 2543 fps | 99.7% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 48,254 psi | 77% | 2608 fps | 95.3% |
| ReloadSwiss RS 52 | 64.8 gr | 82% | 37,637 psi | 60% | 2510 fps | 95.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 29,225 psi | 47% | 2316 fps | 95.5% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 39,697 psi | 64% | 2562 fps | 95% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 43,816 psi | 70% | 2631 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 41,191 psi | 66% | 2451 fps | 99.6% |
| Rottweil R 902 | <<locked>> | 80% | 35,694 psi | 57% | 2356 fps | 97.1% |
| Rottweil R 903 | <<locked>> | 84% | 33,199 psi | 53% | 2359 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 96% | 45,179 psi | 72% | 2556 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 36,622 psi | 59% | 2425 fps | 98.8% |
| Shooters World Precision | <<locked>> | 80% | 33,808 psi | 54% | 2336 fps | 96.6% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 47,761 psi | 77% | 2556 fps | 99.2% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 50,459 psi | 81% | 2635 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 34,563 psi | 55% | 2405 fps | 95% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 47,877 psi | 77% | 2549 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 40,727 psi | 65% | 2470 fps | 95% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 36,767 psi | 59% | 2408 fps | 96% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 39,204 psi | 63% | 2375 fps | 99.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,198 psi | 52% | 2244 fps | 99.1% |
| Somchem S321 | <<locked>> | 80% | 43,163 psi | 69% | 2530 fps | 99% |
| Somchem S335 | <<locked>> | 80% | 38,696 psi | 62% | 2379 fps | 99.8% |
| Somchem S341 | <<locked>> | 80% | 37,840 psi | 61% | 2421 fps | 96.2% |
| Somchem S355 | <<locked>> | 82% | 32,213 psi | 52% | 2320 fps | 95% |
| Somchem S365 | <<locked>> | 90% | 29,805 psi | 48% | 2339 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 44,469 psi | 71% | 2448 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 39,334 psi | 63% | 2379 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 34,621 psi | 56% | 2356 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 35,433 psi | 57% | 2356 fps | 99.3% |
| Vihtavuori N150 | <<locked>> | 80% | 28,558 psi | 46% | 2211 fps | 95.1% |
| Vihtavuori N160 | <<locked>> | 94% | 39,798 psi | 64% | 2500 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 40,161 psi | 64% | 2451 fps | 98.3% |
| Vihtavuori N540 | <<locked>> | 80% | 34,055 psi | 55% | 2339 fps | 98.6% |
| Vihtavuori N550 | <<locked>> | 96% | 41,437 psi | 66% | 2552 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 33,359 psi | 53% | 2329 fps | 95% |
| Winchester 748 | <<locked>> | 80% | 39,073 psi | 63% | 2490 fps | 98.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 35,853 psi | 57% | 2408 fps | 96.4% |
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 92 powders for .375 H&H Mag. loaded with the .375 | 250gr | Alaska Bullet Works Kodiak SP SPBC. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,874 fps; across all powders the maximum-charge window runs from 1,624 fps to 2,874 fps. Accurate 4350 gives the best case fill at 100 %, and 92 of the 92 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 56–90 %, 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 4350, Alliant Reloder-16, Alliant Reloder-17 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. Alliant Power Pro 2000-MR, ReloadSwiss RS 52, Hodgdon LEVERevolution rank at the top here: for .375 H&H Mag. 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.