Load Specifications
Load data in caliber .375 H&H Mag. with .375 | 225gr | Hornady SP bullet and 89 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, Hodgdon CFE223 and ReloadSwiss RS 52.
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.
A valid access license is required to use the Personalized Load Calculator.
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>> | 92% | 55,941 psi | 90% | 2792 fps | 100% |
| Accurate 2200 | <<locked>> | 82% | 52,852 psi | 85% | 2828 fps | 97.7% |
| Accurate 2230 | <<locked>> | 82% | 53,693 psi | 86% | 2841 fps | 98.2% |
| Accurate 2460 | <<locked>> | 88% | 54,578 psi | 88% | 2815 fps | 100% |
| Accurate 2495 | <<locked>> | 98% | 56,246 psi | 90% | 2848 fps | 100% |
| Accurate 2520 | <<locked>> | 92% | 55,840 psi | 90% | 2871 fps | 100% |
| Accurate 4064ᴾ | <<locked>> | 100% | 55,680 psi | 89% | 2884 fps | 100% |
| Accurate LT-30 | <<locked>> | 86% | 56,434 psi | 90% | 2746 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 53,519 psi | 86% | 2720 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 94% | 54,853 psi | 88% | 2871 fps | 98.8% |
| ADI AR 2207 | <<locked>> | 82% | 54,505 psi | 87% | 2726 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 55,796 psi | 89% | 2861 fps | 98.3% |
| ADI AR 2219 | <<locked>> | 84% | 53,011 psi | 85% | 2812 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 92% | 54,418 psi | 87% | 2831 fps | 99.4% |
| Alliant AR-Comp | <<locked>> | 92% | 53,548 psi | 86% | 2825 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 88% | 55,709 psi | 89% | 2936 fps | 99.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 96% | 54,433 psi | 87% | 2969 fps | 98% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 54,621 psi | 88% | 2881 fps | 99.3% |
| Alliant Reloder-10x | <<locked>> | 88% | 56,043 psi | 90% | 2805 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 98% | 55,709 psi | 89% | 2900 fps | 98.5% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 48,472 psi | 78% | 2867 fps | 98.2% |
| Alliant Reloder-7 | <<locked>> | 82% | 55,405 psi | 89% | 2740 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 55,477 psi | 89% | 2743 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 94% | 54,534 psi | 87% | 2877 fps | 97.8% |
| Bofors RP3ᴾ | <<locked>> | 100% | 55,027 psi | 88% | 2897 fps | 99.4% |
| Hodgdon Benchmark | <<locked>> | 90% | 53,519 psi | 86% | 2776 fps | 99.6% |
| Hodgdon BL-C2 | <<locked>> | 92% | 52,852 psi | 85% | 2858 fps | 99.6% |
| Hodgdon CFE223 | <<locked>> | 90% | 54,607 psi | 88% | 2946 fps | 98.4% |
| Hodgdon H322 | <<locked>> | 88% | 55,100 psi | 88% | 2841 fps | 100% |
| Hodgdon H335 | <<locked>> | 88% | 56,275 psi | 90% | 2867 fps | 100% |
| Hodgdon H380 | <<locked>> | 98% | 53,200 psi | 85% | 2848 fps | 96.8% |
| Hodgdon H4198 | <<locked>> | 82% | 54,984 psi | 88% | 2746 fps | 100% |
| Hodgdon H4895 | <<locked>> | 94% | 55,303 psi | 89% | 2881 fps | 99.2% |
| Hodgdon LEVERevolution | <<locked>> | 96% | 53,766 psi | 86% | 2907 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,258 psi | 55% | 1709 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 53,548 psi | 86% | 2835 fps | 98.9% |
| IMR 3031 | <<locked>> | 94% | 54,157 psi | 87% | 2877 fps | 100% |
| IMR 4064 | <<locked>> | 98% | 55,303 psi | 89% | 2844 fps | 98.4% |
| IMR 4198 | <<locked>> | 86% | 53,258 psi | 85% | 2726 fps | 100% |
| IMR 4895 | <<locked>> | 96% | 53,664 psi | 86% | 2884 fps | 98.7% |
| IMR 8208 XBR | <<locked>> | 92% | 54,418 psi | 87% | 2831 fps | 99.4% |
| Lovex D073.4 | <<locked>> | 82% | 54,375 psi | 87% | 2825 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 88% | 54,476 psi | 87% | 2822 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 94% | 53,519 psi | 86% | 2851 fps | 100% |
| Lovex S060 | <<locked>> | 94% | 55,347 psi | 89% | 2802 fps | 98.8% |
| Lovex S062 | <<locked>> | 98% | 54,317 psi | 87% | 2841 fps | 99.5% |
| Norma 200 | <<locked>> | 84% | 55,941 psi | 90% | 2779 fps | 100% |
| Norma 201 | <<locked>> | 94% | 53,534 psi | 86% | 2818 fps | 99.4% |
| Norma 202 | <<locked>> | 94% | 53,795 psi | 86% | 2828 fps | 100% |
| Norma 203B | <<locked>> | 98% | 54,708 psi | 88% | 2890 fps | 98.8% |
| Ramshot Big Game | <<locked>> | 98% | 55,245 psi | 89% | 2913 fps | 98.7% |
| Ramshot TAC | <<locked>> | 92% | 55,129 psi | 88% | 2838 fps | 96.5% |
| Ramshot Wild Boar | <<locked>> | 92% | 53,867 psi | 86% | 2858 fps | 98.6% |
| Ramshot X-Terminator | <<locked>> | 90% | 56,014 psi | 90% | 2835 fps | 98.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,490 psi | 55% | 1749 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 54,230 psi | 87% | 2825 fps | 99.9% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 55,405 psi | 89% | 2966 fps | 98.5% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 51,822 psi | 83% | 2943 fps | 100% |
| Rottweil R 901 | <<locked>> | 92% | 54,607 psi | 88% | 2812 fps | 100% |
| Rottweil R 902 | <<locked>> | 96% | 53,867 psi | 86% | 2815 fps | 99.4% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 50,952 psi | 82% | 2825 fps | 98.8% |
| Shooters World AR Plus | <<locked>> | 82% | 54,375 psi | 87% | 2825 fps | 99.9% |
| Shooters World Match Rifle | <<locked>> | 94% | 53,519 psi | 86% | 2851 fps | 100% |
| Shooters World Precision | <<locked>> | 98% | 54,317 psi | 87% | 2841 fps | 99.5% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 54,462 psi | 87% | 2792 fps | 99.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 53,940 psi | 86% | 2470 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 53,417 psi | 86% | 2822 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 53,026 psi | 85% | 2887 fps | 98.4% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 53,693 psi | 86% | 2782 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 92% | 52,808 psi | 85% | 2805 fps | 96.6% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 53,316 psi | 85% | 2838 fps | 98.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 56,173 psi | 90% | 2776 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 55,288 psi | 89% | 2766 fps | 100% |
| Somchem S321 | <<locked>> | 90% | 55,695 psi | 89% | 2871 fps | 99.7% |
| Somchem S335 | <<locked>> | 94% | 54,795 psi | 88% | 2772 fps | 100% |
| Somchem S341 | <<locked>> | 94% | 55,854 psi | 90% | 2861 fps | 98.7% |
| Somchem S355ᴾ | <<locked>> | 100% | 52,011 psi | 83% | 2828 fps | 98.7% |
| Somchem S365ᴾ | <<locked>> | 100% | 37,202 psi | 60% | 2641 fps | 96.7% |
| Vihtavuori N120 | <<locked>> | 82% | 54,418 psi | 87% | 2674 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 55,999 psi | 90% | 2753 fps | 100% |
| Vihtavuori N133 | <<locked>> | 94% | 55,854 psi | 90% | 2766 fps | 100% |
| Vihtavuori N135 | <<locked>> | 98% | 55,970 psi | 90% | 2838 fps | 100% |
| Vihtavuori N140 | <<locked>> | 96% | 54,433 psi | 87% | 2808 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 50,169 psi | 80% | 2766 fps | 99.3% |
| Vihtavuori N530 | <<locked>> | 92% | 54,897 psi | 88% | 2831 fps | 99.5% |
| Vihtavuori N540 | <<locked>> | 98% | 55,898 psi | 90% | 2851 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 45,832 psi | 73% | 2700 fps | 97.5% |
| Winchester 748 | <<locked>> | 92% | 53,795 psi | 86% | 2877 fps | 99.8% |
| Winchester StaBALL Match | <<locked>> | 94% | 52,620 psi | 84% | 2844 fps | 98.9% |
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% | 38,450 psi | 62% | 2513 fps | 99.9% |
| Accurate 2200 | <<locked>> | 80% | 49,632 psi | 80% | 2772 fps | 97.1% |
| Accurate 2230 | <<locked>> | 80% | 49,937 psi | 80% | 2779 fps | 97.5% |
| Accurate 2460 | <<locked>> | 80% | 41,684 psi | 67% | 2605 fps | 99.2% |
| Accurate 2495 | <<locked>> | 80% | 31,024 psi | 50% | 2411 fps | 99.3% |
| Accurate 2520 | <<locked>> | 80% | 36,999 psi | 59% | 2549 fps | 98% |
| Accurate 4064 | <<locked>> | 80% | 29,312 psi | 47% | 2382 fps | 96.7% |
| Accurate LT-30 | <<locked>> | 80% | 47,166 psi | 76% | 2608 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 47,471 psi | 76% | 2625 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 84% | 40,132 psi | 64% | 2605 fps | 95.7% |
| ADI AR 2207 | <<locked>> | 80% | 51,155 psi | 82% | 2680 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 41,089 psi | 66% | 2605 fps | 95.1% |
| ADI AR 2219 | <<locked>> | 80% | 46,267 psi | 74% | 2707 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 37,260 psi | 60% | 2520 fps | 96.3% |
| Alliant AR-Comp | <<locked>> | 80% | 35,752 psi | 57% | 2536 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 42,714 psi | 68% | 2710 fps | 97.2% |
| Alliant Power Pro 2000-MR | 73.9 gr | 90% | 44,498 psi | 71% | 2782 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 35,070 psi | 56% | 2520 fps | 95.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 43,700 psi | 70% | 2618 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 40,611 psi | 65% | 2635 fps | 95.2% |
| Alliant Reloder-17 | <<locked>> | 94% | 39,871 psi | 64% | 2690 fps | 95.8% |
| Alliant Reloder-7 | <<locked>> | 80% | 52,083 psi | 84% | 2694 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 45,788 psi | 73% | 2598 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 44,759 psi | 72% | 2710 fps | 95.7% |
| Bofors RP3 | <<locked>> | 86% | 34,374 psi | 55% | 2516 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 39,523 psi | 63% | 2526 fps | 97.5% |
| Hodgdon BL-C2 | <<locked>> | 80% | 35,027 psi | 56% | 2523 fps | 96.3% |
| Hodgdon CFE223 | 68.9 gr | 82% | 41,408 psi | 66% | 2707 fps | 95.4% |
| Hodgdon H322 | <<locked>> | 80% | 42,482 psi | 68% | 2641 fps | 99.8% |
| Hodgdon H335 | <<locked>> | 80% | 42,917 psi | 69% | 2654 fps | 99.5% |
| Hodgdon H380 | <<locked>> | 94% | 46,673 psi | 75% | 2740 fps | 95.4% |
| Hodgdon H4198 | <<locked>> | 80% | 51,866 psi | 83% | 2700 fps | 100% |
| Hodgdon H4895 | <<locked>> | 82% | 37,927 psi | 61% | 2566 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 36,114 psi | 58% | 2572 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,396 psi | 41% | 1526 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 36,651 psi | 59% | 2520 fps | 95.2% |
| IMR 3031 | <<locked>> | 80% | 34,214 psi | 55% | 2526 fps | 99.3% |
| IMR 4064 | <<locked>> | 88% | 40,567 psi | 65% | 2589 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 44,730 psi | 72% | 2595 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 39,015 psi | 63% | 2615 fps | 95.5% |
| IMR 8208 XBR | <<locked>> | 80% | 37,260 psi | 60% | 2520 fps | 96.3% |
| Lovex D073.4 | <<locked>> | 80% | 50,836 psi | 82% | 2772 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 80% | 41,423 psi | 66% | 2605 fps | 98.3% |
| Lovex D073.6 | <<locked>> | 80% | 33,344 psi | 53% | 2477 fps | 96.9% |
| Lovex S060 | <<locked>> | 82% | 38,769 psi | 62% | 2507 fps | 95.3% |
| Lovex S062 | <<locked>> | 82% | 33,257 psi | 53% | 2441 fps | 95% |
| Norma 200 | <<locked>> | 80% | 49,414 psi | 79% | 2687 fps | 100% |
| Norma 201 | <<locked>> | 80% | 34,708 psi | 56% | 2461 fps | 95.5% |
| Norma 202 | <<locked>> | 80% | 34,534 psi | 55% | 2477 fps | 98% |
| Norma 203B | <<locked>> | 88% | 39,885 psi | 64% | 2625 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 88% | 39,595 psi | 63% | 2631 fps | 95.2% |
| Ramshot TAC | <<locked>> | 88% | 48,443 psi | 78% | 2726 fps | 95% |
| Ramshot Wild Boar | <<locked>> | 82% | 38,609 psi | 62% | 2582 fps | 95.1% |
| Ramshot X-Terminator | <<locked>> | 80% | 40,582 psi | 65% | 2566 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,541 psi | 41% | 1562 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 41,858 psi | 67% | 2615 fps | 98.7% |
| ReloadSwiss RS 52 | 70 gr | 88% | 42,134 psi | 68% | 2733 fps | 95.6% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 32,793 psi | 53% | 2526 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 38,203 psi | 61% | 2523 fps | 98.6% |
| Rottweil R 902 | <<locked>> | 82% | 35,114 psi | 56% | 2464 fps | 95.6% |
| Rottweil R 903 | <<locked>> | 90% | 36,724 psi | 59% | 2559 fps | 95.5% |
| Shooters World AR Plus | <<locked>> | 80% | 50,836 psi | 82% | 2772 fps | 99.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 33,344 psi | 53% | 2477 fps | 96.9% |
| Shooters World Precision | <<locked>> | 82% | 33,257 psi | 53% | 2441 fps | 95% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 44,251 psi | 71% | 2625 fps | 97.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 51,372 psi | 82% | 2438 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 46,717 psi | 75% | 2713 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 41,060 psi | 66% | 2671 fps | 95.8% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 44,483 psi | 71% | 2638 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 46,064 psi | 74% | 2694 fps | 95% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 38,595 psi | 62% | 2569 fps | 95.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 36,521 psi | 59% | 2444 fps | 98.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 29,747 psi | 48% | 2303 fps | 97.5% |
| Somchem S321 | <<locked>> | 80% | 39,740 psi | 64% | 2592 fps | 97.3% |
| Somchem S335 | <<locked>> | 80% | 35,940 psi | 58% | 2448 fps | 98.9% |
| Somchem S341 | <<locked>> | 84% | 39,726 psi | 64% | 2585 fps | 95.4% |
| Somchem S355 | <<locked>> | 90% | 37,942 psi | 61% | 2572 fps | 95.7% |
| Somchem S365 | <<locked>> | 98% | 35,027 psi | 56% | 2585 fps | 95.8% |
| Vihtavuori N120 | <<locked>> | 80% | 51,097 psi | 82% | 2631 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 41,452 psi | 66% | 2533 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 36,492 psi | 59% | 2451 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 80% | 31,618 psi | 51% | 2418 fps | 99.3% |
| Vihtavuori N140 | <<locked>> | 80% | 32,706 psi | 52% | 2418 fps | 97.8% |
| Vihtavuori N150 | <<locked>> | 86% | 31,807 psi | 51% | 2408 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 37,130 psi | 60% | 2513 fps | 96.3% |
| Vihtavuori N540 | <<locked>> | 80% | 31,401 psi | 50% | 2398 fps | 96.8% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 37,579 psi | 60% | 2533 fps | 95% |
| Winchester 748 | <<locked>> | 80% | 35,824 psi | 57% | 2546 fps | 96.9% |
| Winchester StaBALL Match | <<locked>> | 84% | 37,681 psi | 60% | 2569 fps | 95.6% |
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 89 powders for .375 H&H Mag. loaded with the .375 | 225gr | Hornady SP. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,969 fps; across all powders the maximum-charge window runs from 1,709 fps to 2,969 fps. Accurate 4064 gives the best case fill at 100 %, and 89 of the 89 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. Accurate 4064, ADI AR 2208, Alliant Reloder- TS 15.5 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, Hodgdon CFE223, ReloadSwiss RS 52 rank at the top here: for .375 H&H Mag. with the .375 | 225gr | Hornady SP 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.