Load Specifications
Load data in caliber .375 H&H Mag. with .375 | 210gr | Atomic 29 HP 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, ReloadSwiss RS 52 and Hodgdon CFE223.
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 1680 | <<locked>> | 82% | 56,072 psi | 90% | 2828 fps | 100% |
| Accurate 2015 | <<locked>> | 94% | 55,709 psi | 89% | 2900 fps | 100% |
| Accurate 2200 | <<locked>> | 84% | 53,403 psi | 86% | 2940 fps | 97.2% |
| Accurate 2230 | <<locked>> | 84% | 53,969 psi | 87% | 2946 fps | 97.7% |
| Accurate 2460 | <<locked>> | 90% | 54,433 psi | 87% | 2920 fps | 99.9% |
| Accurate 2495ᴾ | <<locked>> | 100% | 55,259 psi | 89% | 2946 fps | 100% |
| Accurate 2520 | <<locked>> | 94% | 55,767 psi | 89% | 2976 fps | 99.9% |
| Accurate 4064ᴾ | <<locked>> | 100% | 51,140 psi | 82% | 2927 fps | 100% |
| Accurate LT-30 | <<locked>> | 86% | 53,795 psi | 86% | 2812 fps | 100% |
| Accurate LT-32 | <<locked>> | 86% | 54,230 psi | 87% | 2831 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 96% | 54,998 psi | 88% | 2972 fps | 98.3% |
| ADI AR 2207 | <<locked>> | 84% | 54,607 psi | 88% | 2838 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 52,576 psi | 84% | 2907 fps | 97.2% |
| ADI AR 2219 | <<locked>> | 86% | 53,548 psi | 86% | 2927 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 94% | 54,520 psi | 87% | 2933 fps | 99.1% |
| Alliant AR-Comp | <<locked>> | 94% | 53,156 psi | 85% | 2930 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 90% | 55,753 psi | 89% | 3045 fps | 98.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 98% | 54,882 psi | 88% | 3071 fps | 97.4% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 50,966 psi | 82% | 2923 fps | 98.5% |
| Alliant Reloder-10x | <<locked>> | 90% | 55,927 psi | 90% | 2917 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 55,637 psi | 89% | 3002 fps | 97.9% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 45,310 psi | 73% | 2897 fps | 96.7% |
| Alliant Reloder-7 | <<locked>> | 84% | 55,854 psi | 90% | 2858 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 56,246 psi | 90% | 2854 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 96% | 54,926 psi | 88% | 2982 fps | 97.3% |
| Bofors RP3ᴾ | <<locked>> | 100% | 51,024 psi | 82% | 2936 fps | 98.5% |
| Hodgdon Benchmark | <<locked>> | 92% | 53,882 psi | 86% | 2881 fps | 99.4% |
| Hodgdon BL-C2 | <<locked>> | 94% | 52,823 psi | 85% | 2959 fps | 99.3% |
| Hodgdon CFE223 | <<locked>> | 92% | 54,940 psi | 88% | 3054 fps | 97.9% |
| Hodgdon H322 | <<locked>> | 90% | 55,376 psi | 89% | 2956 fps | 100% |
| Hodgdon H335 | <<locked>> | 88% | 52,895 psi | 85% | 2923 fps | 99.9% |
| Hodgdon H380ᴾ | <<locked>> | 100% | 53,243 psi | 85% | 2946 fps | 96.1% |
| Hodgdon H4198 | <<locked>> | 84% | 55,825 psi | 90% | 2864 fps | 100% |
| Hodgdon H4895 | <<locked>> | 96% | 55,405 psi | 89% | 2986 fps | 98.8% |
| Hodgdon LEVERevolution | <<locked>> | 98% | 53,795 psi | 86% | 3009 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,692 psi | 54% | 1772 fps | 100% |
| Hodgdon VARGET | <<locked>> | 96% | 53,635 psi | 86% | 2936 fps | 98.5% |
| IMR 3031 | <<locked>> | 96% | 53,925 psi | 86% | 2986 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 55,347 psi | 89% | 2943 fps | 97.9% |
| IMR 4198 | <<locked>> | 88% | 53,548 psi | 86% | 2838 fps | 100% |
| IMR 4895 | <<locked>> | 98% | 53,534 psi | 86% | 2986 fps | 98.2% |
| IMR 8208 XBR | <<locked>> | 94% | 54,520 psi | 87% | 2933 fps | 99.1% |
| Lovex D073.4 | <<locked>> | 84% | 54,592 psi | 88% | 2933 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 90% | 54,476 psi | 87% | 2927 fps | 99.6% |
| Lovex D073.6 | <<locked>> | 96% | 53,432 psi | 86% | 2953 fps | 99.8% |
| Lovex S060 | <<locked>> | 96% | 55,767 psi | 89% | 2907 fps | 98.4% |
| Lovex S062ᴾ | <<locked>> | 100% | 54,273 psi | 87% | 2943 fps | 99.2% |
| Norma 200 | <<locked>> | 86% | 55,796 psi | 89% | 2890 fps | 100% |
| Norma 201 | <<locked>> | 96% | 53,534 psi | 86% | 2920 fps | 99% |
| Norma 202 | <<locked>> | 96% | 53,853 psi | 86% | 2936 fps | 100% |
| Norma 203Bᴾ | <<locked>> | 100% | 54,621 psi | 88% | 2989 fps | 98.3% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 55,448 psi | 89% | 3015 fps | 98.2% |
| Ramshot TAC | <<locked>> | 94% | 55,738 psi | 89% | 2943 fps | 95.9% |
| Ramshot Wild Boar | <<locked>> | 94% | 54,288 psi | 87% | 2963 fps | 98.1% |
| Ramshot X-Terminator | <<locked>> | 90% | 52,852 psi | 85% | 2884 fps | 97.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,765 psi | 54% | 1811 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 54,665 psi | 88% | 2933 fps | 99.8% |
| ReloadSwiss RS 52 | <<locked>> | 98% | 55,376 psi | 89% | 3071 fps | 97.9% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 48,530 psi | 78% | 2979 fps | 99.4% |
| Rottweil R 901 | <<locked>> | 94% | 54,157 psi | 87% | 2913 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 98% | 53,664 psi | 86% | 2913 fps | 99% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 47,253 psi | 76% | 2864 fps | 97.6% |
| Shooters World AR Plus | <<locked>> | 84% | 54,592 psi | 88% | 2933 fps | 99.8% |
| Shooters World Match Rifle | <<locked>> | 96% | 53,432 psi | 86% | 2953 fps | 99.8% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 54,273 psi | 87% | 2943 fps | 99.2% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 54,969 psi | 88% | 2900 fps | 98.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 54,491 psi | 87% | 2582 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 53,896 psi | 86% | 2933 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 49,821 psi | 80% | 2933 fps | 97.3% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 53,780 psi | 86% | 2890 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 94% | 53,127 psi | 85% | 2907 fps | 95.9% |
| SNPE Vectan SP 9 | <<locked>> | 96% | 53,359 psi | 86% | 2940 fps | 98% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 56,391 psi | 90% | 2881 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 52,228 psi | 84% | 2825 fps | 100% |
| Somchem S321 | <<locked>> | 92% | 55,927 psi | 90% | 2976 fps | 99.4% |
| Somchem S335 | <<locked>> | 96% | 55,056 psi | 88% | 2877 fps | 100% |
| Somchem S341 | <<locked>> | 96% | 56,260 psi | 90% | 2966 fps | 98.3% |
| Somchem S355ᴾ | <<locked>> | 100% | 48,341 psi | 78% | 2867 fps | 97.6% |
| Vihtavuori N120 | <<locked>> | 84% | 54,549 psi | 87% | 2785 fps | 100% |
| Vihtavuori N130 | <<locked>> | 92% | 56,304 psi | 90% | 2864 fps | 100% |
| Vihtavuori N133 | <<locked>> | 96% | 56,014 psi | 90% | 2874 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 55,695 psi | 89% | 2943 fps | 100% |
| Vihtavuori N140 | <<locked>> | 98% | 54,331 psi | 87% | 2913 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 46,818 psi | 75% | 2808 fps | 98.5% |
| Vihtavuori N530 | <<locked>> | 94% | 55,259 psi | 89% | 2936 fps | 99.2% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 56,101 psi | 90% | 2956 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 43,091 psi | 69% | 2733 fps | 96% |
| Winchester 748 | <<locked>> | 94% | 53,940 psi | 86% | 2982 fps | 99.6% |
| Winchester StaBALL Match | <<locked>> | 96% | 52,953 psi | 85% | 2949 fps | 98.5% |
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% | 52,547 psi | 84% | 2779 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 35,723 psi | 57% | 2559 fps | 99.5% |
| Accurate 2200 | <<locked>> | 80% | 46,615 psi | 75% | 2815 fps | 95.7% |
| Accurate 2230 | <<locked>> | 80% | 46,601 psi | 75% | 2818 fps | 96.2% |
| Accurate 2460 | <<locked>> | 80% | 38,537 psi | 62% | 2641 fps | 98.2% |
| Accurate 2495 | <<locked>> | 80% | 27,702 psi | 44% | 2421 fps | 98% |
| Accurate 2520 | <<locked>> | 80% | 33,982 psi | 54% | 2575 fps | 96.5% |
| Accurate 4064 | <<locked>> | 82% | 28,094 psi | 45% | 2444 fps | 95.5% |
| Accurate LT-30 | <<locked>> | 80% | 44,744 psi | 72% | 2667 fps | 99.8% |
| Accurate LT-32 | <<locked>> | 80% | 45,107 psi | 72% | 2680 fps | 99% |
| ADI AR 2206H | <<locked>> | 88% | 42,525 psi | 68% | 2749 fps | 95.7% |
| ADI AR 2207 | <<locked>> | 80% | 48,254 psi | 77% | 2746 fps | 100% |
| ADI AR 2208 | <<locked>> | 94% | 43,729 psi | 70% | 2749 fps | 95.1% |
| ADI AR 2219 | <<locked>> | 80% | 43,395 psi | 70% | 2759 fps | 99.7% |
| ADI Benchmark 8208 | <<locked>> | 82% | 37,115 psi | 60% | 2608 fps | 95.4% |
| Alliant AR-Comp | <<locked>> | 80% | 32,924 psi | 53% | 2579 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 39,798 psi | 64% | 2746 fps | 95.6% |
| Alliant Power Pro 2000-MR | 78.3 gr | 94% | 47,688 psi | 76% | 2940 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 36,796 psi | 59% | 2654 fps | 95% |
| Alliant Reloder-10x | <<locked>> | 80% | 40,828 psi | 65% | 2674 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 43,004 psi | 69% | 2779 fps | 95.2% |
| Alliant Reloder-17 | <<locked>> | 98% | 42,438 psi | 68% | 2838 fps | 95.8% |
| Alliant Reloder-7 | <<locked>> | 80% | 49,153 psi | 79% | 2759 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 43,279 psi | 69% | 2651 fps | 99.8% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 47,819 psi | 77% | 2864 fps | 95.7% |
| Bofors RP3 | <<locked>> | 92% | 38,537 psi | 62% | 2703 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 37,086 psi | 59% | 2566 fps | 96.1% |
| Hodgdon BL-C2 | <<locked>> | 82% | 34,708 psi | 56% | 2608 fps | 95.4% |
| Hodgdon CFE223 | 73.3 gr | 86% | 44,295 psi | 71% | 2861 fps | 95.4% |
| Hodgdon H322 | <<locked>> | 80% | 39,595 psi | 63% | 2684 fps | 99.2% |
| Hodgdon H335 | <<locked>> | 80% | 40,263 psi | 65% | 2700 fps | 98.7% |
| Hodgdon H380 | <<locked>> | 98% | 49,661 psi | 80% | 2887 fps | 95.3% |
| Hodgdon H4198 | <<locked>> | 80% | 49,327 psi | 79% | 2762 fps | 99.9% |
| Hodgdon H4895 | <<locked>> | 86% | 40,176 psi | 64% | 2710 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 38,377 psi | 62% | 2717 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,816 psi | 40% | 1581 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 38,885 psi | 62% | 2661 fps | 95.1% |
| IMR 3031 | <<locked>> | 80% | 31,488 psi | 50% | 2556 fps | 98.2% |
| IMR 4064 | <<locked>> | 92% | 42,946 psi | 69% | 2730 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 42,148 psi | 68% | 2654 fps | 100% |
| IMR 4895 | <<locked>> | 90% | 41,176 psi | 66% | 2759 fps | 95.4% |
| IMR 8208 XBR | <<locked>> | 82% | 37,115 psi | 60% | 2608 fps | 95.4% |
| Lovex D073.4 | <<locked>> | 80% | 47,369 psi | 76% | 2818 fps | 99.2% |
| Lovex D073.5 | <<locked>> | 80% | 38,276 psi | 61% | 2638 fps | 96.9% |
| Lovex D073.6 | <<locked>> | 80% | 30,443 psi | 49% | 2497 fps | 95% |
| Lovex S060 | <<locked>> | 86% | 41,104 psi | 66% | 2648 fps | 95.3% |
| Lovex S062 | <<locked>> | 88% | 37,159 psi | 60% | 2625 fps | 95.6% |
| Norma 200 | <<locked>> | 80% | 46,021 psi | 74% | 2743 fps | 100% |
| Norma 201 | <<locked>> | 84% | 36,463 psi | 58% | 2598 fps | 95.4% |
| Norma 202 | <<locked>> | 80% | 32,024 psi | 51% | 2510 fps | 96.5% |
| Norma 203B | <<locked>> | 92% | 42,192 psi | 68% | 2769 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 92% | 42,322 psi | 68% | 2782 fps | 95.2% |
| Ramshot TAC | <<locked>> | 92% | 52,054 psi | 83% | 2884 fps | 95.1% |
| Ramshot Wild Boar | <<locked>> | 86% | 41,278 psi | 66% | 2730 fps | 95.2% |
| Ramshot X-Terminator | <<locked>> | 84% | 43,337 psi | 69% | 2713 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,845 psi | 40% | 1617 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 39,218 psi | 63% | 2657 fps | 97.6% |
| ReloadSwiss RS 52 | 74.3 gr | 92% | 44,846 psi | 72% | 2884 fps | 95.6% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 34,693 psi | 56% | 2664 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 35,288 psi | 57% | 2556 fps | 97.3% |
| Rottweil R 902 | <<locked>> | 86% | 36,883 psi | 59% | 2598 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 94% | 38,450 psi | 62% | 2694 fps | 95.3% |
| Shooters World AR Plus | <<locked>> | 80% | 47,369 psi | 76% | 2818 fps | 99.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 30,443 psi | 49% | 2497 fps | 95% |
| Shooters World Precision | <<locked>> | 88% | 37,159 psi | 60% | 2625 fps | 95.6% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 41,684 psi | 67% | 2671 fps | 96.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 49,139 psi | 79% | 2510 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 43,961 psi | 70% | 2766 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 43,555 psi | 70% | 2815 fps | 95.7% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 41,713 psi | 67% | 2690 fps | 99.8% |
| SNPE Vectan SP 7 | <<locked>> | 92% | 49,458 psi | 79% | 2848 fps | 95.1% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 41,147 psi | 66% | 2717 fps | 95.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 34,055 psi | 55% | 2480 fps | 97.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 27,528 psi | 44% | 2333 fps | 95.9% |
| Somchem S321 | <<locked>> | 80% | 36,956 psi | 59% | 2628 fps | 95.8% |
| Somchem S335 | <<locked>> | 80% | 33,330 psi | 53% | 2480 fps | 97.8% |
| Somchem S341 | <<locked>> | 88% | 42,627 psi | 68% | 2736 fps | 95.5% |
| Somchem S355 | <<locked>> | 94% | 39,885 psi | 64% | 2707 fps | 95.5% |
| Vihtavuori N120 | <<locked>> | 80% | 48,283 psi | 77% | 2697 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 38,856 psi | 62% | 2582 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 34,040 psi | 55% | 2493 fps | 99.2% |
| Vihtavuori N135 | <<locked>> | 80% | 28,935 psi | 46% | 2444 fps | 98.2% |
| Vihtavuori N140 | <<locked>> | 80% | 30,182 psi | 48% | 2448 fps | 96.2% |
| Vihtavuori N150 | <<locked>> | 92% | 35,824 psi | 57% | 2595 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 82% | 36,912 psi | 59% | 2602 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 28,906 psi | 46% | 2421 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 40,234 psi | 65% | 2674 fps | 95.1% |
| Winchester 748 | <<locked>> | 80% | 33,243 psi | 53% | 2575 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 88% | 40,205 psi | 64% | 2720 fps | 95.7% |
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 | 210gr | Atomic 29 HP. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,071 fps; across all powders the maximum-charge window runs from 1,772 fps to 3,071 fps. Accurate 2495 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 54–90 %, leaving at least 10 % headroom. Accurate 2495, Accurate 4064, ADI AR 2208 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 CFE223 rank at the top here: for .375 H&H Mag. with the .375 | 210gr | Atomic 29 HP 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.