Load Specifications
Load data in caliber .375 H&H Mag. with .375 | 185gr | Lehigh Defense Controlled Fracturing bullet and 76 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, Hodgdon H335 and Winchester 748.
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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 84% | 54,984 psi | 88% | 2986 fps | 100% |
| Accurate 2015 | <<locked>> | 96% | 53,417 psi | 86% | 3041 fps | 100% |
| Accurate 2200 | <<locked>> | 88% | 55,216 psi | 89% | 3127 fps | 96% |
| Accurate 2230 | <<locked>> | 88% | 55,782 psi | 89% | 3136 fps | 96.5% |
| Accurate 2460 | <<locked>> | 94% | 55,811 psi | 89% | 3107 fps | 99.6% |
| Accurate 2495ᴾ | <<locked>> | 100% | 48,225 psi | 77% | 3022 fps | 100% |
| Accurate 2520 | <<locked>> | 96% | 53,084 psi | 85% | 3104 fps | 99.2% |
| Accurate 4064ᴾ | <<locked>> | 100% | 44,672 psi | 72% | 2986 fps | 98.8% |
| Accurate LT-30 | <<locked>> | 90% | 55,680 psi | 89% | 3005 fps | 100% |
| Accurate LT-32 | <<locked>> | 90% | 56,130 psi | 90% | 3022 fps | 99.4% |
| ADI AR 2206Hᴾ | <<locked>> | 100% | 56,086 psi | 90% | 3153 fps | 97.1% |
| ADI AR 2207 | <<locked>> | 88% | 56,072 psi | 90% | 3041 fps | 100% |
| ADI AR 2219 | <<locked>> | 90% | 54,969 psi | 88% | 3123 fps | 99.9% |
| ADI Benchmark 8208 | <<locked>> | 98% | 55,970 psi | 90% | 3120 fps | 98.2% |
| Alliant AR-Comp | <<locked>> | 98% | 53,621 psi | 86% | 3123 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 92% | 53,069 psi | 85% | 3169 fps | 97.3% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 53,200 psi | 85% | 3114 fps | 97.2% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 45,049 psi | 72% | 2979 fps | 95.8% |
| Alliant Reloder-10x | <<locked>> | 92% | 53,563 psi | 86% | 3064 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 86% | 53,998 psi | 87% | 3009 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 54,694 psi | 88% | 2999 fps | 100% |
| Baschieri & Pellagri 107ᴾ | <<locked>> | 100% | 56,246 psi | 90% | 3156 fps | 95.9% |
| Hodgdon Benchmark | <<locked>> | 96% | 55,419 psi | 89% | 3064 fps | 98.6% |
| Hodgdon BL-C2 | <<locked>> | 98% | 53,867 psi | 86% | 3140 fps | 98.5% |
| Hodgdon CFE223 | <<locked>> | 96% | 56,173 psi | 90% | 3235 fps | 96.6% |
| Hodgdon H322 | <<locked>> | 92% | 53,127 psi | 85% | 3094 fps | 99.9% |
| Hodgdon H335 | <<locked>> | 92% | 54,534 psi | 87% | 3117 fps | 99.6% |
| Hodgdon H4198 | <<locked>> | 86% | 54,302 psi | 87% | 3009 fps | 99.8% |
| Hodgdon H4895ᴾ | <<locked>> | 100% | 56,434 psi | 90% | 3166 fps | 97.8% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 51,213 psi | 82% | 3127 fps | 97.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,822 psi | 53% | 1870 fps | 100% |
| Hodgdon VARGETᴾ | <<locked>> | 100% | 55,114 psi | 88% | 3120 fps | 97.4% |
| IMR 3031ᴾ | <<locked>> | 100% | 54,259 psi | 87% | 3169 fps | 100% |
| IMR 4198 | <<locked>> | 92% | 54,853 psi | 88% | 3035 fps | 100% |
| IMR 4227 | <<locked>> | 82% | 54,186 psi | 87% | 2956 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 50,720 psi | 81% | 3097 fps | 96.2% |
| IMR 8208 XBR | <<locked>> | 98% | 55,970 psi | 90% | 3120 fps | 98.2% |
| Lovex D073.4 | <<locked>> | 86% | 52,402 psi | 84% | 3068 fps | 98.9% |
| Lovex D073.5 | <<locked>> | 94% | 56,072 psi | 90% | 3114 fps | 98.9% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 54,070 psi | 87% | 3130 fps | 99.3% |
| Lovex S053 | <<locked>> | 84% | 55,912 psi | 90% | 2940 fps | 100% |
| Lovex S060 | <<locked>> | 98% | 54,041 psi | 87% | 3035 fps | 96.7% |
| Lovex S062ᴾ | <<locked>> | 100% | 48,414 psi | 78% | 3005 fps | 97.1% |
| Norma 200 | <<locked>> | 88% | 53,621 psi | 86% | 3041 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 54,389 psi | 87% | 3094 fps | 98.1% |
| Norma 202ᴾ | <<locked>> | 100% | 54,592 psi | 88% | 3117 fps | 99.6% |
| Ramshot Wild Boar | <<locked>> | 98% | 55,608 psi | 89% | 3143 fps | 97% |
| Ramshot X-Terminator | <<locked>> | 94% | 54,694 psi | 88% | 3068 fps | 96.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,779 psi | 53% | 1913 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 54,505 psi | 87% | 2995 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 56,144 psi | 90% | 3123 fps | 99.2% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 43,410 psi | 70% | 3009 fps | 96.7% |
| Rottweil R 901 | <<locked>> | 98% | 55,071 psi | 88% | 3094 fps | 99.5% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 51,155 psi | 82% | 3031 fps | 97.5% |
| Shooters World AR Plus | <<locked>> | 86% | 52,402 psi | 84% | 3068 fps | 98.9% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 54,070 psi | 87% | 3130 fps | 99.3% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 48,414 psi | 78% | 3005 fps | 97.1% |
| Shooters World Tactical Rifle | <<locked>> | 90% | 53,200 psi | 85% | 3028 fps | 97.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 56,304 psi | 90% | 2776 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 55,390 psi | 89% | 3123 fps | 99.6% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 54,940 psi | 88% | 3084 fps | 100% |
| SNPE Vectan SP 9ᴾ | <<locked>> | 100% | 54,737 psi | 88% | 3120 fps | 96.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 98% | 54,389 psi | 87% | 3018 fps | 99.5% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 46,862 psi | 75% | 2904 fps | 99.4% |
| Somchem S321 | <<locked>> | 94% | 53,722 psi | 86% | 3104 fps | 98.2% |
| Somchem S335ᴾ | <<locked>> | 100% | 56,101 psi | 90% | 3061 fps | 99.9% |
| Somchem S341 | <<locked>> | 98% | 53,940 psi | 86% | 3084 fps | 96.5% |
| Vihtavuori N120 | <<locked>> | 88% | 56,028 psi | 90% | 2986 fps | 100% |
| Vihtavuori N130 | <<locked>> | 94% | 54,230 psi | 87% | 3009 fps | 100% |
| Vihtavuori N133 | <<locked>> | 98% | 53,751 psi | 86% | 3012 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 49,284 psi | 79% | 3025 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 51,924 psi | 83% | 3041 fps | 99.6% |
| Vihtavuori N530 | <<locked>> | 96% | 53,127 psi | 85% | 3064 fps | 97.8% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 50,140 psi | 80% | 3028 fps | 99.1% |
| Winchester 748 | <<locked>> | 98% | 54,824 psi | 88% | 3163 fps | 98.9% |
| Winchester StaBALL Matchᴾ | <<locked>> | 100% | 53,940 psi | 86% | 3123 fps | 97.3% |
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% | 48,182 psi | 77% | 2877 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 31,720 psi | 51% | 2615 fps | 97.6% |
| Accurate 2200 | <<locked>> | 86% | 51,561 psi | 83% | 3064 fps | 95.1% |
| Accurate 2230 | <<locked>> | 86% | 51,779 psi | 83% | 3071 fps | 95.7% |
| Accurate 2460 | <<locked>> | 80% | 34,258 psi | 55% | 2694 fps | 95.4% |
| Accurate 2495 | <<locked>> | 82% | 25,643 psi | 41% | 2507 fps | 95.6% |
| Accurate 2520 | <<locked>> | 86% | 37,086 psi | 59% | 2799 fps | 95.9% |
| Accurate 4064 | <<locked>> | 90% | 31,981 psi | 51% | 2700 fps | 95.4% |
| Accurate LT-30 | <<locked>> | 80% | 40,988 psi | 66% | 2746 fps | 98.6% |
| Accurate LT-32 | <<locked>> | 80% | 41,350 psi | 66% | 2756 fps | 97% |
| ADI AR 2206H | <<locked>> | 96% | 49,327 psi | 79% | 3035 fps | 95.7% |
| ADI AR 2207 | <<locked>> | 80% | 43,656 psi | 70% | 2848 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 38,812 psi | 62% | 2825 fps | 98% |
| ADI Benchmark 8208 | <<locked>> | 90% | 43,192 psi | 69% | 2890 fps | 95.6% |
| Alliant AR-Comp | <<locked>> | 80% | 29,167 psi | 47% | 2631 fps | 99% |
| Alliant Power Pro 1200-R | 68.5 gr | 88% | 46,427 psi | 74% | 3048 fps | 95.8% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 43,787 psi | 70% | 2936 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 42,264 psi | 68% | 2920 fps | 95% |
| Alliant Reloder-10x | <<locked>> | 80% | 36,637 psi | 59% | 2749 fps | 99.5% |
| Alliant Reloder-7 | <<locked>> | 80% | 44,744 psi | 72% | 2854 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 39,363 psi | 63% | 2730 fps | 98.6% |
| Baschieri & Pellagri 107 | <<locked>> | 98% | 52,663 psi | 84% | 3097 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 86% | 40,640 psi | 65% | 2792 fps | 95.6% |
| Hodgdon BL-C2 | <<locked>> | 90% | 40,640 psi | 65% | 2894 fps | 95.6% |
| Hodgdon CFE223 | <<locked>> | 94% | 52,330 psi | 84% | 3166 fps | 95.7% |
| Hodgdon H322 | <<locked>> | 80% | 35,433 psi | 57% | 2746 fps | 97.1% |
| Hodgdon H335 | 66.5 gr | 80% | 35,824 psi | 57% | 2753 fps | 96.2% |
| Hodgdon H4198 | <<locked>> | 80% | 45,194 psi | 72% | 2851 fps | 98.9% |
| Hodgdon H4895 | <<locked>> | 94% | 46,427 psi | 74% | 2989 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 96% | 44,672 psi | 72% | 2999 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,207 psi | 39% | 1673 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 45,295 psi | 73% | 2943 fps | 95.2% |
| IMR 3031 | <<locked>> | 80% | 27,934 psi | 45% | 2595 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 38,203 psi | 61% | 2743 fps | 99.9% |
| IMR 4227 | <<locked>> | 80% | 51,024 psi | 82% | 2907 fps | 100% |
| IMR 4895 | <<locked>> | 98% | 47,587 psi | 76% | 3041 fps | 95.4% |
| IMR 8208 XBR | <<locked>> | 90% | 43,192 psi | 69% | 2890 fps | 95.6% |
| Lovex D073.4 | <<locked>> | 80% | 42,148 psi | 68% | 2877 fps | 97% |
| Lovex D073.5 | <<locked>> | 84% | 39,160 psi | 63% | 2805 fps | 95.6% |
| Lovex D073.6 | <<locked>> | 88% | 35,418 psi | 57% | 2772 fps | 95.3% |
| Lovex S053 | <<locked>> | 80% | 49,763 psi | 80% | 2851 fps | 100% |
| Lovex S060 | <<locked>> | 94% | 47,906 psi | 77% | 2927 fps | 95.3% |
| Lovex S062 | <<locked>> | 96% | 42,656 psi | 68% | 2897 fps | 95.6% |
| Norma 200 | <<locked>> | 80% | 41,394 psi | 66% | 2831 fps | 100% |
| Norma 201 | <<locked>> | 92% | 42,061 psi | 67% | 2867 fps | 95.4% |
| Norma 202 | <<locked>> | 86% | 34,577 psi | 55% | 2723 fps | 95.8% |
| Ramshot Wild Boar | <<locked>> | 94% | 48,515 psi | 78% | 3022 fps | 95.4% |
| Ramshot X-Terminator | <<locked>> | 90% | 47,950 psi | 77% | 2949 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,134 psi | 39% | 1713 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 51,213 psi | 82% | 2946 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 37,724 psi | 60% | 2772 fps | 95.6% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 40,640 psi | 65% | 2943 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 82% | 33,678 psi | 54% | 2664 fps | 95.1% |
| Rottweil R 902 | <<locked>> | 94% | 42,366 psi | 68% | 2864 fps | 95.4% |
| Shooters World AR Plus | <<locked>> | 80% | 42,148 psi | 68% | 2877 fps | 97% |
| Shooters World Match Rifle | <<locked>> | 88% | 35,418 psi | 57% | 2772 fps | 95.3% |
| Shooters World Precision | <<locked>> | 96% | 42,656 psi | 68% | 2897 fps | 95.6% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 43,033 psi | 69% | 2844 fps | 95.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 45,527 psi | 73% | 2625 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 39,320 psi | 63% | 2825 fps | 97.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 37,420 psi | 60% | 2759 fps | 98.4% |
| SNPE Vectan SP 9 | <<locked>> | 96% | 47,790 psi | 77% | 2995 fps | 95.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 34,867 psi | 56% | 2644 fps | 95.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 29,965 psi | 48% | 2536 fps | 95.2% |
| Somchem S321 | <<locked>> | 86% | 40,654 psi | 65% | 2858 fps | 95.2% |
| Somchem S335 | <<locked>> | 82% | 31,908 psi | 51% | 2589 fps | 95.7% |
| Somchem S341 | <<locked>> | 96% | 50,198 psi | 80% | 3022 fps | 95.7% |
| Vihtavuori N120 | <<locked>> | 80% | 43,758 psi | 70% | 2805 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 35,085 psi | 56% | 2657 fps | 99.1% |
| Vihtavuori N133 | <<locked>> | 80% | 30,545 psi | 49% | 2552 fps | 97.1% |
| Vihtavuori N135 | <<locked>> | 80% | 25,454 psi | 41% | 2484 fps | 95.1% |
| Vihtavuori N140 | <<locked>> | 86% | 32,750 psi | 53% | 2654 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 90% | 43,352 psi | 70% | 2887 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 88% | 33,663 psi | 54% | 2690 fps | 95.2% |
| Winchester 748 | 71.7 gr | 88% | 38,986 psi | 63% | 2861 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 94% | 43,816 psi | 70% | 2940 fps | 95% |
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 94 powders for .375 H&H Mag. loaded with the .375 | 185gr | Lehigh Defense Controlled Fracturing. Hodgdon CFE223 delivers the highest muzzle velocity at 3,235 fps; across all powders the maximum-charge window runs from 1,870 fps to 3,235 fps. Accurate 2495 gives the best case fill at 100 %, and 94 of the 94 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 53–90 %, leaving at least 10 % headroom. Accurate 2495, Accurate 4064, ADI AR 2206H 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, Hodgdon H335, Winchester 748 rank at the top here: for .375 H&H Mag. with the .375 | 185gr | Lehigh Defense Controlled Fracturing they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2208, Alliant Power Pro 2000-MR, Alliant Reloder-17 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.