Load Specifications
Load data in caliber .375 H&H Mag. with .375 | 210gr | Barnes X S bullet and 86 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.
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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>> | 90% | 53,258 psi | 85% | 2828 fps | 100% |
| Accurate 2200 | <<locked>> | 84% | 56,420 psi | 90% | 2953 fps | 97.5% |
| Accurate 2230 | <<locked>> | 82% | 54,099 psi | 87% | 2910 fps | 97.5% |
| Accurate 2460 | <<locked>> | 88% | 55,347 psi | 89% | 2894 fps | 99.9% |
| Accurate 2495 | <<locked>> | 96% | 54,070 psi | 87% | 2890 fps | 100% |
| Accurate 2520 | <<locked>> | 92% | 56,231 psi | 90% | 2946 fps | 99.9% |
| Accurate 4064 | <<locked>> | 98% | 53,301 psi | 85% | 2920 fps | 100% |
| Accurate LT-30 | <<locked>> | 86% | 56,304 psi | 90% | 2818 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 53,664 psi | 86% | 2792 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 94% | 55,042 psi | 88% | 2940 fps | 98.1% |
| ADI AR 2207 | <<locked>> | 82% | 54,795 psi | 88% | 2805 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 55,724 psi | 89% | 2927 fps | 97.5% |
| ADI AR 2219 | <<locked>> | 84% | 52,953 psi | 85% | 2887 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 92% | 54,534 psi | 87% | 2900 fps | 99% |
| Alliant AR-Comp | <<locked>> | 92% | 53,388 psi | 86% | 2904 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 88% | 55,680 psi | 89% | 3009 fps | 98.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 96% | 54,056 psi | 87% | 3025 fps | 96.9% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 54,708 psi | 88% | 2953 fps | 98.8% |
| Alliant Reloder-10x | <<locked>> | 88% | 56,434 psi | 90% | 2887 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 98% | 55,869 psi | 90% | 2972 fps | 97.8% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 48,559 psi | 78% | 2930 fps | 97.2% |
| Alliant Reloder-7 | <<locked>> | 82% | 56,043 psi | 90% | 2822 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 55,463 psi | 89% | 2815 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 94% | 54,418 psi | 87% | 2943 fps | 96.9% |
| Bofors RP3ᴾ | <<locked>> | 100% | 55,158 psi | 88% | 2966 fps | 98.9% |
| Hodgdon Benchmark | <<locked>> | 90% | 53,737 psi | 86% | 2844 fps | 99.2% |
| Hodgdon BL-C2 | <<locked>> | 92% | 53,098 psi | 85% | 2930 fps | 99.2% |
| Hodgdon CFE223 | <<locked>> | 90% | 54,375 psi | 87% | 3012 fps | 97.5% |
| Hodgdon H322 | <<locked>> | 88% | 54,926 psi | 88% | 2917 fps | 100% |
| Hodgdon H335 | <<locked>> | 88% | 56,289 psi | 90% | 2943 fps | 100% |
| Hodgdon H380 | <<locked>> | 98% | 53,548 psi | 86% | 2917 fps | 95.9% |
| Hodgdon H4198 | <<locked>> | 82% | 55,013 psi | 88% | 2822 fps | 100% |
| Hodgdon H4895 | <<locked>> | 94% | 55,477 psi | 89% | 2953 fps | 98.6% |
| Hodgdon LEVERevolution | <<locked>> | 96% | 53,461 psi | 86% | 2972 fps | 98.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,577 psi | 55% | 1762 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 53,548 psi | 86% | 2904 fps | 98.3% |
| IMR 3031 | <<locked>> | 94% | 53,998 psi | 87% | 2956 fps | 100% |
| IMR 4064 | <<locked>> | 98% | 55,361 psi | 89% | 2913 fps | 97.7% |
| IMR 4198 | <<locked>> | 88% | 56,188 psi | 90% | 2841 fps | 100% |
| IMR 4895 | <<locked>> | 96% | 53,592 psi | 86% | 2953 fps | 98% |
| IMR 8208 XBR | <<locked>> | 92% | 54,534 psi | 87% | 2900 fps | 99% |
| Lovex D073.4 | <<locked>> | 82% | 54,926 psi | 88% | 2900 fps | 99.7% |
| Lovex D073.5 | <<locked>> | 88% | 55,245 psi | 89% | 2900 fps | 99.5% |
| Lovex D073.6 | <<locked>> | 94% | 54,027 psi | 87% | 2927 fps | 99.8% |
| Lovex S060 | <<locked>> | 94% | 55,463 psi | 89% | 2871 fps | 98.1% |
| Lovex S062 | <<locked>> | 98% | 54,766 psi | 88% | 2917 fps | 99.1% |
| Norma 200 | <<locked>> | 82% | 53,751 psi | 86% | 2818 fps | 100% |
| Norma 201 | <<locked>> | 94% | 54,288 psi | 87% | 2894 fps | 99% |
| Norma 202 | <<locked>> | 94% | 54,070 psi | 87% | 2907 fps | 100% |
| Norma 203B | <<locked>> | 98% | 54,868 psi | 88% | 2959 fps | 98.1% |
| Ramshot Big Game | <<locked>> | 98% | 55,071 psi | 88% | 2979 fps | 97.9% |
| Ramshot Wild Boar | <<locked>> | 92% | 53,911 psi | 86% | 2927 fps | 97.9% |
| Ramshot X-Terminator | <<locked>> | 90% | 56,202 psi | 90% | 2904 fps | 98.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,896 psi | 56% | 1804 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 54,360 psi | 87% | 2897 fps | 99.7% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 54,882 psi | 88% | 3031 fps | 97.6% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 51,779 psi | 83% | 3005 fps | 99.6% |
| Rottweil R 901 | <<locked>> | 92% | 55,898 psi | 90% | 2897 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 96% | 54,636 psi | 88% | 2890 fps | 99% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 51,532 psi | 83% | 2900 fps | 98.2% |
| Shooters World AR Plus | <<locked>> | 82% | 54,926 psi | 88% | 2900 fps | 99.7% |
| Shooters World Match Rifle | <<locked>> | 94% | 54,027 psi | 87% | 2927 fps | 99.8% |
| Shooters World Precision | <<locked>> | 98% | 54,766 psi | 88% | 2917 fps | 99.1% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 54,694 psi | 88% | 2861 fps | 98.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 54,288 psi | 87% | 2546 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 53,534 psi | 86% | 2894 fps | 99.9% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 53,026 psi | 85% | 2953 fps | 97.7% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 53,635 psi | 86% | 2854 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 53,417 psi | 86% | 2910 fps | 97.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 56,405 psi | 90% | 2851 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 55,201 psi | 89% | 2838 fps | 100% |
| Somchem S321 | <<locked>> | 90% | 55,927 psi | 90% | 2943 fps | 99.3% |
| Somchem S335 | <<locked>> | 94% | 55,317 psi | 89% | 2848 fps | 100% |
| Somchem S341 | <<locked>> | 94% | 55,782 psi | 89% | 2927 fps | 98.1% |
| Somchem S355ᴾ | <<locked>> | 100% | 52,199 psi | 84% | 2900 fps | 98.1% |
| Vihtavuori N120 | <<locked>> | 82% | 54,592 psi | 88% | 2753 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 56,275 psi | 90% | 2831 fps | 100% |
| Vihtavuori N133 | <<locked>> | 94% | 55,811 psi | 89% | 2841 fps | 100% |
| Vihtavuori N135 | <<locked>> | 98% | 56,057 psi | 90% | 2917 fps | 100% |
| Vihtavuori N140 | <<locked>> | 96% | 54,273 psi | 87% | 2881 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 50,444 psi | 81% | 2838 fps | 98.8% |
| Vihtavuori N530 | <<locked>> | 92% | 55,013 psi | 88% | 2900 fps | 99% |
| Vihtavuori N540 | <<locked>> | 98% | 55,999 psi | 90% | 2923 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 46,108 psi | 74% | 2759 fps | 96.6% |
| Winchester 748 | <<locked>> | 92% | 53,679 psi | 86% | 2946 fps | 99.5% |
| Winchester StaBALL Match | <<locked>> | 96% | 56,173 psi | 90% | 2969 fps | 98.7% |
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% | 39,842 psi | 64% | 2598 fps | 99.8% |
| Accurate 2200 | <<locked>> | 80% | 49,777 psi | 80% | 2838 fps | 96.2% |
| Accurate 2230 | <<locked>> | 80% | 50,430 psi | 81% | 2848 fps | 96.8% |
| Accurate 2460 | <<locked>> | 80% | 42,946 psi | 69% | 2687 fps | 98.8% |
| Accurate 2495 | <<locked>> | 80% | 33,344 psi | 53% | 2513 fps | 99.3% |
| Accurate 2520 | <<locked>> | 80% | 38,189 psi | 61% | 2628 fps | 97.5% |
| Accurate 4064 | <<locked>> | 80% | 31,444 psi | 50% | 2480 fps | 96.6% |
| Accurate LT-30 | <<locked>> | 80% | 47,311 psi | 76% | 2677 fps | 99.9% |
| Accurate LT-32 | <<locked>> | 80% | 47,659 psi | 76% | 2694 fps | 99.2% |
| ADI AR 2206H | <<locked>> | 86% | 43,526 psi | 70% | 2733 fps | 95.7% |
| ADI AR 2207 | <<locked>> | 80% | 51,735 psi | 83% | 2762 fps | 100% |
| ADI AR 2208 | <<locked>> | 94% | 46,760 psi | 75% | 2772 fps | 95.6% |
| ADI AR 2219 | <<locked>> | 80% | 46,760 psi | 75% | 2785 fps | 99.9% |
| ADI Benchmark 8208 | <<locked>> | 80% | 38,189 psi | 61% | 2592 fps | 95.5% |
| Alliant AR-Comp | <<locked>> | 80% | 36,695 psi | 59% | 2621 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 43,453 psi | 70% | 2785 fps | 96.4% |
| Alliant Power Pro 2000-MR | 75.1 gr | 92% | 47,703 psi | 76% | 2904 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 38,130 psi | 61% | 2644 fps | 95.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 44,715 psi | 72% | 2703 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 43,830 psi | 70% | 2759 fps | 95.1% |
| Alliant Reloder-17 | <<locked>> | 96% | 42,902 psi | 69% | 2812 fps | 95.6% |
| Alliant Reloder-7 | <<locked>> | 80% | 52,852 psi | 85% | 2779 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 46,035 psi | 74% | 2671 fps | 99.9% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 47,950 psi | 77% | 2831 fps | 95.5% |
| Bofors RP3 | <<locked>> | 88% | 37,855 psi | 61% | 2648 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 40,248 psi | 65% | 2595 fps | 96.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 36,158 psi | 58% | 2602 fps | 95.6% |
| Hodgdon CFE223 | 70.1 gr | 84% | 44,541 psi | 71% | 2831 fps | 95.2% |
| Hodgdon H322 | <<locked>> | 80% | 42,902 psi | 69% | 2713 fps | 99.6% |
| Hodgdon H335 | <<locked>> | 80% | 43,656 psi | 70% | 2730 fps | 99.1% |
| Hodgdon H380 | <<locked>> | 96% | 50,183 psi | 80% | 2861 fps | 95.2% |
| Hodgdon H4198 | <<locked>> | 80% | 51,880 psi | 83% | 2772 fps | 100% |
| Hodgdon H4895 | <<locked>> | 84% | 41,176 psi | 66% | 2690 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 39,276 psi | 63% | 2700 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,773 psi | 41% | 1575 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 39,566 psi | 63% | 2641 fps | 95.1% |
| IMR 3031 | <<locked>> | 80% | 35,128 psi | 56% | 2602 fps | 98.9% |
| IMR 4064 | <<locked>> | 90% | 43,642 psi | 70% | 2707 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 45,049 psi | 72% | 2674 fps | 100% |
| IMR 4895 | <<locked>> | 88% | 42,192 psi | 68% | 2743 fps | 95.4% |
| IMR 8208 XBR | <<locked>> | 80% | 38,189 psi | 61% | 2592 fps | 95.5% |
| Lovex D073.4 | <<locked>> | 80% | 51,474 psi | 83% | 2848 fps | 99.5% |
| Lovex D073.5 | <<locked>> | 80% | 42,685 psi | 68% | 2684 fps | 97.8% |
| Lovex D073.6 | <<locked>> | 80% | 34,635 psi | 56% | 2559 fps | 96.4% |
| Lovex S060 | <<locked>> | 84% | 41,814 psi | 67% | 2625 fps | 95.2% |
| Lovex S062 | <<locked>> | 84% | 36,593 psi | 59% | 2572 fps | 95.2% |
| Norma 200 | <<locked>> | 80% | 50,705 psi | 81% | 2776 fps | 100% |
| Norma 201 | <<locked>> | 80% | 36,129 psi | 58% | 2543 fps | 95% |
| Norma 202 | <<locked>> | 80% | 35,723 psi | 57% | 2559 fps | 97.5% |
| Norma 203B | <<locked>> | 90% | 43,033 psi | 69% | 2746 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 90% | 42,772 psi | 69% | 2756 fps | 95.1% |
| Ramshot Wild Boar | <<locked>> | 84% | 41,800 psi | 67% | 2703 fps | 95.1% |
| Ramshot X-Terminator | <<locked>> | 82% | 43,874 psi | 70% | 2690 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,991 psi | 42% | 1614 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 42,656 psi | 68% | 2690 fps | 98.2% |
| ReloadSwiss RS 52 | 71.2 gr | 90% | 45,455 psi | 73% | 2861 fps | 95.5% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 35,839 psi | 57% | 2654 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 40,190 psi | 64% | 2612 fps | 98.3% |
| Rottweil R 902 | <<locked>> | 82% | 36,651 psi | 59% | 2546 fps | 95.1% |
| Rottweil R 903 | <<locked>> | 92% | 40,277 psi | 65% | 2690 fps | 95.6% |
| Shooters World AR Plus | <<locked>> | 80% | 51,474 psi | 83% | 2848 fps | 99.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 34,635 psi | 56% | 2559 fps | 96.4% |
| Shooters World Precision | <<locked>> | 84% | 36,593 psi | 59% | 2572 fps | 95.2% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 44,962 psi | 72% | 2697 fps | 97% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 51,721 psi | 83% | 2513 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 47,326 psi | 76% | 2789 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 44,266 psi | 71% | 2792 fps | 95.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 44,817 psi | 72% | 2710 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 41,771 psi | 67% | 2694 fps | 95.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 37,463 psi | 60% | 2516 fps | 97.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,748 psi | 49% | 2379 fps | 97% |
| Somchem S321 | <<locked>> | 80% | 40,625 psi | 65% | 2667 fps | 96.7% |
| Somchem S335 | <<locked>> | 80% | 37,086 psi | 59% | 2523 fps | 98.5% |
| Somchem S341 | <<locked>> | 86% | 43,149 psi | 69% | 2710 fps | 95.4% |
| Somchem S355 | <<locked>> | 92% | 41,307 psi | 66% | 2697 fps | 95.7% |
| Vihtavuori N120 | <<locked>> | 80% | 51,648 psi | 83% | 2713 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 42,221 psi | 68% | 2608 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 37,231 psi | 60% | 2526 fps | 99.6% |
| Vihtavuori N135 | <<locked>> | 80% | 32,764 psi | 53% | 2500 fps | 99.1% |
| Vihtavuori N140 | <<locked>> | 80% | 33,663 psi | 54% | 2493 fps | 97.2% |
| Vihtavuori N150 | <<locked>> | 88% | 34,998 psi | 56% | 2536 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 37,942 psi | 61% | 2585 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 32,561 psi | 52% | 2477 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 43,352 psi | 70% | 2703 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 36,593 psi | 59% | 2618 fps | 96.1% |
| Winchester StaBALL Match | <<locked>> | 86% | 40,973 psi | 66% | 2700 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 86 powders for .375 H&H Mag. loaded with the .375 | 210gr | Barnes X S. ReloadSwiss RS 52 delivers the highest muzzle velocity at 3,031 fps; across all powders the maximum-charge window runs from 1,762 fps to 3,031 fps. ADI AR 2208 gives the best case fill at 100 %, and 86 of the 86 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 210.0 gr projectile in 0.375" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. ADI AR 2208, Alliant Reloder- TS 15.5, 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, Hodgdon CFE223, ReloadSwiss RS 52 rank at the top here: for .375 H&H Mag. with the .375 | 210gr | Barnes X S 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.