Load Specifications
Load data in caliber .375 H&H Mag. with .375 | 200gr | Impala LWHV LS bullet and 84 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 1200-R, Winchester 748 and Hodgdon BL-C2.
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 1680 | <<locked>> | 82% | 54,810 psi | 88% | 2818 fps | 100% |
| Accurate 2015 | <<locked>> | 94% | 54,520 psi | 87% | 2890 fps | 100% |
| Accurate 2200 | <<locked>> | 86% | 55,027 psi | 88% | 2959 fps | 96.2% |
| Accurate 2230 | <<locked>> | 86% | 55,999 psi | 90% | 2972 fps | 96.7% |
| Accurate 2460 | <<locked>> | 90% | 53,316 psi | 85% | 2904 fps | 99.5% |
| Accurate 2495ᴾ | <<locked>> | 100% | 54,389 psi | 87% | 2943 fps | 100% |
| Accurate 2520 | <<locked>> | 96% | 55,303 psi | 89% | 2986 fps | 99.5% |
| Accurate 2520 | <<locked>> | 96% | 55,303 psi | 89% | 2986 fps | 99.5% |
| Accurate 4064ᴾ | <<locked>> | 100% | 50,401 psi | 81% | 2920 fps | 99.6% |
| Accurate LT-30 | <<locked>> | 88% | 55,477 psi | 89% | 2841 fps | 100% |
| Accurate LT-32 | <<locked>> | 88% | 55,883 psi | 90% | 2858 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 98% | 56,275 psi | 90% | 2992 fps | 97.3% |
| ADI AR 2207 | <<locked>> | 84% | 53,447 psi | 86% | 2835 fps | 100% |
| ADI AR 2219 | <<locked>> | 88% | 54,839 psi | 88% | 2956 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 96% | 55,927 psi | 90% | 2956 fps | 98.4% |
| Alliant AR-Comp | <<locked>> | 96% | 53,809 psi | 86% | 2963 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 90% | 53,621 psi | 86% | 3012 fps | 97.6% |
| Alliant Power Pro 2000-MRᴾ | <<locked>> | 100% | 55,912 psi | 90% | 3074 fps | 95.9% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 48,921 psi | 78% | 2894 fps | 97% |
| Alliant Reloder-10x | <<locked>> | 90% | 54,665 psi | 88% | 2910 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 53,374 psi | 86% | 2966 fps | 96.3% |
| Alliant Reloder-7 | <<locked>> | 84% | 54,853 psi | 88% | 2851 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 54,288 psi | 87% | 2835 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 98% | 55,854 psi | 90% | 2992 fps | 96% |
| Bofors RP3ᴾ | <<locked>> | 100% | 49,240 psi | 79% | 2907 fps | 97.1% |
| Hodgdon Benchmark | <<locked>> | 94% | 55,332 psi | 89% | 2904 fps | 98.7% |
| Hodgdon BL-C2 | <<locked>> | 96% | 54,128 psi | 87% | 2982 fps | 98.7% |
| Hodgdon CFE223 | <<locked>> | 94% | 55,898 psi | 90% | 3068 fps | 96.7% |
| Hodgdon H322 | <<locked>> | 90% | 53,243 psi | 85% | 2933 fps | 99.9% |
| Hodgdon H335 | <<locked>> | 90% | 54,404 psi | 87% | 2953 fps | 99.7% |
| Hodgdon H4198 | <<locked>> | 84% | 54,128 psi | 87% | 2841 fps | 99.8% |
| Hodgdon H4895 | <<locked>> | 96% | 53,461 psi | 86% | 2956 fps | 97.4% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 54,578 psi | 88% | 3022 fps | 98% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,997 psi | 55% | 1772 fps | 100% |
| Hodgdon VARGET | <<locked>> | 98% | 54,853 psi | 88% | 2956 fps | 97.6% |
| IMR 3031 | <<locked>> | 98% | 54,708 psi | 88% | 3012 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 53,330 psi | 86% | 2910 fps | 96.2% |
| IMR 4198 | <<locked>> | 90% | 54,868 psi | 88% | 2871 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 54,650 psi | 88% | 3005 fps | 97.2% |
| IMR 8208 XBR | <<locked>> | 96% | 55,927 psi | 90% | 2956 fps | 98.4% |
| Lovex D073.4 | <<locked>> | 84% | 53,330 psi | 86% | 2913 fps | 99.1% |
| Lovex D073.5 | <<locked>> | 90% | 53,301 psi | 85% | 2907 fps | 98.7% |
| Lovex D073.6 | <<locked>> | 98% | 54,839 psi | 88% | 2979 fps | 99.4% |
| Lovex S053 | <<locked>> | 82% | 56,260 psi | 90% | 2776 fps | 100% |
| Lovex S060 | <<locked>> | 96% | 54,027 psi | 87% | 2877 fps | 96.9% |
| Lovex S062ᴾ | <<locked>> | 100% | 52,460 psi | 84% | 2913 fps | 98% |
| Norma 200 | <<locked>> | 86% | 55,317 psi | 89% | 2890 fps | 100% |
| Norma 201 | <<locked>> | 98% | 55,535 psi | 89% | 2946 fps | 98.4% |
| Norma 202 | <<locked>> | 98% | 55,172 psi | 88% | 2963 fps | 99.7% |
| Norma 203Bᴾ | <<locked>> | 100% | 52,446 psi | 84% | 2956 fps | 96.7% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 52,953 psi | 85% | 2969 fps | 96.4% |
| Ramshot Wild Boar | <<locked>> | 96% | 55,259 psi | 89% | 2979 fps | 97.1% |
| Ramshot X-Terminator | <<locked>> | 92% | 54,621 psi | 88% | 2910 fps | 96.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,272 psi | 55% | 1814 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 56,072 psi | 90% | 2959 fps | 99.3% |
| ReloadSwiss RS 52ᴾ | <<locked>> | 100% | 55,883 psi | 90% | 3077 fps | 96.7% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 46,818 psi | 75% | 2933 fps | 97.9% |
| Rottweil R 901 | <<locked>> | 94% | 54,201 psi | 87% | 2907 fps | 99.5% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 55,724 psi | 89% | 2940 fps | 98.4% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 45,818 psi | 73% | 2838 fps | 96% |
| Shooters World AR Plus | <<locked>> | 84% | 53,330 psi | 86% | 2913 fps | 99.1% |
| Shooters World Match Rifle | <<locked>> | 98% | 54,839 psi | 88% | 2979 fps | 99.4% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 52,460 psi | 84% | 2913 fps | 98% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 53,258 psi | 85% | 2871 fps | 97.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 56,333 psi | 90% | 2615 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 88% | 55,535 psi | 89% | 2966 fps | 99.7% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 54,926 psi | 88% | 2917 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 98% | 54,476 psi | 87% | 2956 fps | 97% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 54,723 psi | 88% | 2861 fps | 99.6% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 50,343 psi | 81% | 2802 fps | 99.8% |
| Somchem S321 | <<locked>> | 92% | 54,070 psi | 87% | 2949 fps | 98.4% |
| Somchem S335 | <<locked>> | 96% | 53,577 psi | 86% | 2861 fps | 99.9% |
| Somchem S341 | <<locked>> | 96% | 53,737 psi | 86% | 2927 fps | 96.7% |
| Somchem S355ᴾ | <<locked>> | 100% | 47,007 psi | 75% | 2844 fps | 96% |
| Vihtavuori N120 | <<locked>> | 86% | 56,318 psi | 90% | 2825 fps | 100% |
| Vihtavuori N130 | <<locked>> | 92% | 54,679 psi | 88% | 2851 fps | 100% |
| Vihtavuori N133 | <<locked>> | 96% | 53,983 psi | 87% | 2858 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 53,476 psi | 86% | 2927 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 55,434 psi | 89% | 2936 fps | 99.9% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 45,194 psi | 72% | 2782 fps | 97% |
| Vihtavuori N530 | <<locked>> | 94% | 53,330 psi | 86% | 2910 fps | 98.1% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 53,766 psi | 86% | 2930 fps | 99.6% |
| Winchester 748 | <<locked>> | 96% | 54,679 psi | 88% | 2999 fps | 99% |
| Winchester StaBALL Match | <<locked>> | 98% | 53,896 psi | 86% | 2966 fps | 97.5% |
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 1680 | <<locked>> | 80% | 51,459 psi | 83% | 2769 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 36,187 psi | 58% | 2562 fps | 98.9% |
| Accurate 2200 | <<locked>> | 84% | 51,866 psi | 83% | 2904 fps | 95.5% |
| Accurate 2230 | <<locked>> | 82% | 49,066 psi | 79% | 2854 fps | 95.2% |
| Accurate 2460 | <<locked>> | 80% | 38,914 psi | 62% | 2641 fps | 97.1% |
| Accurate 2495 | <<locked>> | 80% | 29,747 psi | 48% | 2464 fps | 97.6% |
| Accurate 2520 | <<locked>> | 82% | 35,070 psi | 56% | 2605 fps | 95.4% |
| Accurate 2520 | <<locked>> | 82% | 35,070 psi | 56% | 2605 fps | 95.4% |
| Accurate 4064 | <<locked>> | 84% | 31,560 psi | 51% | 2526 fps | 95.6% |
| Accurate LT-30 | <<locked>> | 80% | 43,888 psi | 70% | 2648 fps | 99.2% |
| Accurate LT-32 | <<locked>> | 80% | 44,237 psi | 71% | 2657 fps | 97.9% |
| ADI AR 2206H | <<locked>> | 92% | 47,166 psi | 76% | 2835 fps | 95.4% |
| ADI AR 2207 | <<locked>> | 80% | 47,558 psi | 76% | 2746 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 42,337 psi | 68% | 2743 fps | 98.9% |
| ADI Benchmark 8208 | <<locked>> | 86% | 41,669 psi | 67% | 2700 fps | 95.4% |
| Alliant AR-Comp | <<locked>> | 80% | 33,098 psi | 53% | 2582 fps | 99.9% |
| Alliant Power Pro 1200-R | 60.6 gr | 84% | 44,425 psi | 71% | 2841 fps | 95.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 98% | 52,315 psi | 84% | 3009 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 43,526 psi | 70% | 2792 fps | 95.7% |
| Alliant Reloder-10x | <<locked>> | 80% | 40,886 psi | 66% | 2677 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 98% | 50,198 psi | 80% | 2910 fps | 95.5% |
| Alliant Reloder-7 | <<locked>> | 80% | 48,834 psi | 78% | 2759 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 42,395 psi | 68% | 2638 fps | 99.2% |
| Baschieri & Pellagri 107 | <<locked>> | 96% | 52,533 psi | 84% | 2940 fps | 95.3% |
| Bofors RP3 | <<locked>> | 96% | 43,279 psi | 69% | 2799 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 82% | 39,363 psi | 63% | 2605 fps | 95.5% |
| Hodgdon BL-C2 | 66.1 gr | 86% | 39,247 psi | 63% | 2710 fps | 95.5% |
| Hodgdon CFE223 | <<locked>> | 90% | 48,936 psi | 78% | 2943 fps | 95.1% |
| Hodgdon H322 | <<locked>> | 80% | 39,030 psi | 63% | 2674 fps | 98.3% |
| Hodgdon H335 | <<locked>> | 80% | 39,537 psi | 63% | 2684 fps | 97.5% |
| Hodgdon H4198 | <<locked>> | 80% | 48,109 psi | 77% | 2743 fps | 99.4% |
| Hodgdon H4895 | <<locked>> | 90% | 44,773 psi | 72% | 2799 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 42,685 psi | 68% | 2802 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,483 psi | 41% | 1585 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 45,832 psi | 73% | 2799 fps | 95.7% |
| IMR 3031 | <<locked>> | 80% | 31,705 psi | 51% | 2552 fps | 97.1% |
| IMR 4064 | <<locked>> | 98% | 50,343 psi | 81% | 2861 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 41,437 psi | 66% | 2648 fps | 100% |
| IMR 4895 | <<locked>> | 94% | 45,440 psi | 73% | 2841 fps | 95.1% |
| IMR 8208 XBR | <<locked>> | 86% | 41,669 psi | 67% | 2700 fps | 95.4% |
| Lovex D073.4 | <<locked>> | 80% | 46,746 psi | 75% | 2802 fps | 98.2% |
| Lovex D073.5 | <<locked>> | 80% | 38,624 psi | 62% | 2635 fps | 95.7% |
| Lovex D073.6 | <<locked>> | 84% | 35,172 psi | 56% | 2608 fps | 95.5% |
| Lovex S053 | <<locked>> | 80% | 53,287 psi | 85% | 2733 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 45,629 psi | 73% | 2726 fps | 95% |
| Lovex S062 | <<locked>> | 92% | 41,713 psi | 67% | 2717 fps | 95.6% |
| Norma 200 | <<locked>> | 80% | 46,528 psi | 75% | 2753 fps | 100% |
| Norma 201 | <<locked>> | 88% | 41,466 psi | 66% | 2694 fps | 95.5% |
| Norma 202 | <<locked>> | 80% | 32,300 psi | 52% | 2510 fps | 95.2% |
| Norma 203B | <<locked>> | 96% | 46,456 psi | 74% | 2848 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 98% | 49,559 psi | 79% | 2910 fps | 95.6% |
| Ramshot Wild Boar | <<locked>> | 92% | 48,849 psi | 78% | 2874 fps | 95.8% |
| Ramshot X-Terminator | <<locked>> | 88% | 48,356 psi | 78% | 2802 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,498 psi | 41% | 1621 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 38,957 psi | 62% | 2644 fps | 96.3% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 49,385 psi | 79% | 2966 fps | 95.2% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 39,059 psi | 63% | 2753 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 36,912 psi | 59% | 2575 fps | 96.5% |
| Rottweil R 902 | <<locked>> | 90% | 41,785 psi | 67% | 2694 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 98% | 43,163 psi | 69% | 2785 fps | 95.2% |
| Shooters World AR Plus | <<locked>> | 80% | 46,746 psi | 75% | 2802 fps | 98.2% |
| Shooters World Match Rifle | <<locked>> | 84% | 35,172 psi | 56% | 2608 fps | 95.5% |
| Shooters World Precision | <<locked>> | 92% | 41,713 psi | 67% | 2717 fps | 95.6% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 43,743 psi | 70% | 2700 fps | 95.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 48,602 psi | 78% | 2513 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 43,120 psi | 69% | 2749 fps | 98.2% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 40,944 psi | 66% | 2677 fps | 99.2% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 48,385 psi | 78% | 2854 fps | 95.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 34,476 psi | 55% | 2477 fps | 96% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 29,863 psi | 48% | 2385 fps | 95.5% |
| Somchem S321 | <<locked>> | 82% | 39,378 psi | 63% | 2674 fps | 95.1% |
| Somchem S335 | <<locked>> | 80% | 34,069 psi | 55% | 2487 fps | 96.8% |
| Somchem S341 | <<locked>> | 92% | 47,224 psi | 76% | 2815 fps | 95.2% |
| Somchem S355 | <<locked>> | 98% | 44,295 psi | 71% | 2792 fps | 95.3% |
| Vihtavuori N120 | <<locked>> | 80% | 47,456 psi | 76% | 2697 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 38,870 psi | 62% | 2582 fps | 99.7% |
| Vihtavuori N133 | <<locked>> | 80% | 34,055 psi | 55% | 2490 fps | 98.4% |
| Vihtavuori N135 | <<locked>> | 80% | 29,457 psi | 47% | 2451 fps | 97.4% |
| Vihtavuori N140 | <<locked>> | 82% | 32,401 psi | 52% | 2493 fps | 95.7% |
| Vihtavuori N150 | <<locked>> | 96% | 39,958 psi | 64% | 2680 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 86% | 41,524 psi | 67% | 2694 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 84% | 33,112 psi | 53% | 2526 fps | 95.3% |
| Winchester 748 | 63.5 gr | 84% | 37,695 psi | 60% | 2677 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 92% | 44,527 psi | 71% | 2802 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 84 powders for .375 H&H Mag. loaded with the .375 | 200gr | Impala LWHV LS. ReloadSwiss RS 52 delivers the highest muzzle velocity at 3,077 fps; across all powders the maximum-charge window runs from 1,772 fps to 3,077 fps. Accurate 2495 gives the best case fill at 100 %, and 84 of the 84 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. The 200.0 gr projectile in 0.375" calls for a 1:16.0 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, Alliant Power Pro 2000-MR 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 1200-R, Winchester 748, Hodgdon BL-C2 rank at the top here: for .375 H&H Mag. with the .375 | 200gr | Impala LWHV LS 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.