Load Specifications
Load data in caliber .375 H&H Mag. with .374 | 235gr | Rhino Penetrator 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 LEVERevolution.
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% | 55,927 psi | 90% | 2720 fps | 100% |
| Accurate 2200 | <<locked>> | 82% | 53,069 psi | 85% | 2759 fps | 98% |
| Accurate 2230 | <<locked>> | 82% | 53,751 psi | 86% | 2769 fps | 98.4% |
| Accurate 2460 | <<locked>> | 88% | 54,607 psi | 88% | 2743 fps | 100% |
| Accurate 2495 | <<locked>> | 98% | 56,202 psi | 90% | 2776 fps | 100% |
| Accurate 2520 | <<locked>> | 92% | 55,825 psi | 90% | 2799 fps | 100% |
| Accurate 4064ᴾ | <<locked>> | 100% | 55,492 psi | 89% | 2808 fps | 100% |
| Accurate LT-30 | <<locked>> | 86% | 56,405 psi | 90% | 2671 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 53,577 psi | 86% | 2648 fps | 100% |
| ADI AR 2206H | <<locked>> | 94% | 54,926 psi | 88% | 2799 fps | 98.9% |
| ADI AR 2207 | <<locked>> | 82% | 54,592 psi | 88% | 2654 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 55,869 psi | 90% | 2789 fps | 98.5% |
| ADI AR 2219 | <<locked>> | 84% | 53,185 psi | 85% | 2743 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 92% | 54,404 psi | 87% | 2759 fps | 99.5% |
| Alliant AR-Comp | <<locked>> | 92% | 53,316 psi | 85% | 2749 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 88% | 55,709 psi | 89% | 2861 fps | 99.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 96% | 54,273 psi | 87% | 2894 fps | 98.2% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 54,563 psi | 87% | 2808 fps | 99.4% |
| Alliant Reloder-10x | <<locked>> | 88% | 55,941 psi | 90% | 2730 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 98% | 55,521 psi | 89% | 2828 fps | 98.6% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 48,515 psi | 78% | 2802 fps | 98.4% |
| Alliant Reloder-7 | <<locked>> | 82% | 55,405 psi | 89% | 2667 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 55,492 psi | 89% | 2671 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 94% | 54,592 psi | 88% | 2808 fps | 98% |
| Bofors RP3ᴾ | <<locked>> | 100% | 54,810 psi | 88% | 2822 fps | 99.5% |
| Hodgdon Benchmark | <<locked>> | 90% | 53,563 psi | 86% | 2703 fps | 99.7% |
| Hodgdon BL-C2 | <<locked>> | 94% | 56,434 psi | 90% | 2838 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 90% | 54,491 psi | 87% | 2871 fps | 98.5% |
| Hodgdon H322 | <<locked>> | 88% | 55,071 psi | 88% | 2769 fps | 100% |
| Hodgdon H335 | <<locked>> | 88% | 56,434 psi | 90% | 2795 fps | 100% |
| Hodgdon H380 | <<locked>> | 98% | 53,185 psi | 85% | 2779 fps | 97.1% |
| Hodgdon H4198 | <<locked>> | 82% | 55,143 psi | 88% | 2677 fps | 100% |
| Hodgdon H4895 | <<locked>> | 94% | 55,419 psi | 89% | 2812 fps | 99.3% |
| Hodgdon LEVERevolution | <<locked>> | 96% | 53,490 psi | 86% | 2831 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,258 psi | 55% | 1657 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 53,432 psi | 86% | 2762 fps | 99% |
| IMR 3031 | <<locked>> | 94% | 54,085 psi | 87% | 2802 fps | 100% |
| IMR 4064 | <<locked>> | 98% | 55,216 psi | 89% | 2772 fps | 98.6% |
| IMR 4198 | <<locked>> | 88% | 56,434 psi | 90% | 2694 fps | 100% |
| IMR 4895 | <<locked>> | 96% | 53,664 psi | 86% | 2812 fps | 98.9% |
| IMR 8208 XBR | <<locked>> | 92% | 54,404 psi | 87% | 2759 fps | 99.5% |
| Lovex D073.4 | <<locked>> | 82% | 54,433 psi | 87% | 2753 fps | 100% |
| Lovex D073.5 | <<locked>> | 88% | 54,592 psi | 88% | 2753 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 94% | 53,577 psi | 86% | 2779 fps | 100% |
| Lovex S060 | <<locked>> | 94% | 55,564 psi | 89% | 2733 fps | 99% |
| Lovex S062 | <<locked>> | 98% | 54,549 psi | 87% | 2776 fps | 99.6% |
| Norma 200 | <<locked>> | 84% | 56,086 psi | 90% | 2707 fps | 100% |
| Norma 201 | <<locked>> | 94% | 53,505 psi | 86% | 2746 fps | 99.5% |
| Norma 202 | <<locked>> | 94% | 53,824 psi | 86% | 2756 fps | 100% |
| Norma 203B | <<locked>> | 98% | 54,607 psi | 88% | 2815 fps | 98.9% |
| Ramshot Big Game | <<locked>> | 98% | 55,245 psi | 89% | 2841 fps | 98.8% |
| Ramshot TAC | <<locked>> | 92% | 55,056 psi | 88% | 2766 fps | 96.7% |
| Ramshot Wild Boar | <<locked>> | 92% | 53,983 psi | 87% | 2789 fps | 98.8% |
| Ramshot X-Terminator | <<locked>> | 90% | 55,999 psi | 90% | 2762 fps | 98.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,519 psi | 55% | 1696 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 54,273 psi | 87% | 2753 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 55,317 psi | 89% | 2894 fps | 98.6% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 51,880 psi | 83% | 2871 fps | 100% |
| Rottweil R 901 | <<locked>> | 92% | 54,853 psi | 88% | 2743 fps | 100% |
| Rottweil R 902 | <<locked>> | 96% | 53,911 psi | 86% | 2743 fps | 99.5% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 50,923 psi | 82% | 2756 fps | 98.9% |
| Shooters World AR Plus | <<locked>> | 82% | 54,433 psi | 87% | 2753 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 94% | 53,577 psi | 86% | 2779 fps | 100% |
| Shooters World Precision | <<locked>> | 98% | 54,549 psi | 87% | 2776 fps | 99.6% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 54,418 psi | 87% | 2720 fps | 99.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 54,143 psi | 87% | 2402 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 53,461 psi | 86% | 2749 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 53,171 psi | 85% | 2818 fps | 98.6% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 53,519 psi | 86% | 2707 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 92% | 52,968 psi | 85% | 2740 fps | 96.9% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 53,374 psi | 86% | 2769 fps | 98.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 56,217 psi | 90% | 2703 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 55,390 psi | 89% | 2697 fps | 100% |
| Somchem S321 | <<locked>> | 90% | 55,738 psi | 89% | 2799 fps | 99.8% |
| Somchem S335 | <<locked>> | 94% | 54,766 psi | 88% | 2700 fps | 100% |
| Somchem S341 | <<locked>> | 94% | 55,927 psi | 90% | 2792 fps | 98.9% |
| Somchem S355ᴾ | <<locked>> | 100% | 51,851 psi | 83% | 2759 fps | 98.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 37,217 psi | 60% | 2579 fps | 97% |
| Vihtavuori N120 | <<locked>> | 82% | 54,462 psi | 87% | 2602 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 56,086 psi | 90% | 2680 fps | 100% |
| Vihtavuori N133 | <<locked>> | 94% | 55,912 psi | 90% | 2694 fps | 100% |
| Vihtavuori N135 | <<locked>> | 98% | 55,970 psi | 90% | 2766 fps | 100% |
| Vihtavuori N140 | <<locked>> | 96% | 54,375 psi | 87% | 2736 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 50,067 psi | 80% | 2697 fps | 99.4% |
| Vihtavuori N530 | <<locked>> | 92% | 54,955 psi | 88% | 2759 fps | 99.6% |
| Vihtavuori N540 | <<locked>> | 98% | 55,869 psi | 90% | 2779 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 45,774 psi | 73% | 2635 fps | 97.8% |
| Winchester 748 | <<locked>> | 92% | 53,809 psi | 86% | 2805 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 96% | 56,304 psi | 90% | 2828 fps | 99.4% |
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% | 38,667 psi | 62% | 2454 fps | 100% |
| Accurate 2200 | <<locked>> | 80% | 49,690 psi | 80% | 2703 fps | 97.4% |
| Accurate 2230 | <<locked>> | 80% | 50,111 psi | 80% | 2713 fps | 97.8% |
| Accurate 2460 | <<locked>> | 80% | 41,669 psi | 67% | 2539 fps | 99.3% |
| Accurate 2495 | <<locked>> | 80% | 31,082 psi | 50% | 2352 fps | 99.5% |
| Accurate 2520 | <<locked>> | 80% | 37,014 psi | 59% | 2487 fps | 98.3% |
| Accurate 4064 | <<locked>> | 80% | 29,428 psi | 47% | 2326 fps | 97.1% |
| Accurate LT-30 | <<locked>> | 80% | 46,978 psi | 75% | 2536 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 47,355 psi | 76% | 2552 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 82% | 37,623 psi | 60% | 2487 fps | 95.2% |
| ADI AR 2207 | <<locked>> | 80% | 51,358 psi | 82% | 2608 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 41,104 psi | 66% | 2539 fps | 95.4% |
| ADI AR 2219 | <<locked>> | 80% | 46,456 psi | 74% | 2641 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 37,275 psi | 60% | 2457 fps | 96.6% |
| Alliant AR-Comp | <<locked>> | 80% | 35,781 psi | 57% | 2474 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 42,786 psi | 69% | 2641 fps | 97.4% |
| Alliant Power Pro 2000-MR | 71.4 gr | 90% | 44,469 psi | 71% | 2717 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 35,114 psi | 56% | 2457 fps | 95.6% |
| Alliant Reloder-10x | <<locked>> | 80% | 43,918 psi | 70% | 2552 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 40,596 psi | 65% | 2572 fps | 95.6% |
| Alliant Reloder-17 | <<locked>> | 92% | 37,202 psi | 60% | 2566 fps | 95.1% |
| Alliant Reloder-7 | <<locked>> | 80% | 52,185 psi | 84% | 2625 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 45,905 psi | 74% | 2533 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 41,814 psi | 67% | 2589 fps | 95.1% |
| Bofors RP3 | <<locked>> | 86% | 34,360 psi | 55% | 2454 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 39,523 psi | 63% | 2461 fps | 97.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 35,099 psi | 56% | 2461 fps | 96.6% |
| Hodgdon CFE223 | <<locked>> | 82% | 41,321 psi | 66% | 2638 fps | 95.7% |
| Hodgdon H322 | <<locked>> | 80% | 42,482 psi | 68% | 2572 fps | 99.9% |
| Hodgdon H335 | <<locked>> | 80% | 43,004 psi | 69% | 2589 fps | 99.6% |
| Hodgdon H380 | <<locked>> | 94% | 46,659 psi | 75% | 2671 fps | 95.7% |
| Hodgdon H4198 | <<locked>> | 80% | 51,735 psi | 83% | 2628 fps | 100% |
| Hodgdon H4895 | <<locked>> | 80% | 35,520 psi | 57% | 2448 fps | 95.2% |
| Hodgdon LEVERevolution | 63.8 gr | 82% | 33,953 psi | 54% | 2457 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,425 psi | 41% | 1480 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 36,593 psi | 59% | 2454 fps | 95.5% |
| IMR 3031 | <<locked>> | 80% | 34,156 psi | 55% | 2461 fps | 99.4% |
| IMR 4064 | <<locked>> | 88% | 40,625 psi | 65% | 2526 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 44,701 psi | 72% | 2526 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 36,492 psi | 59% | 2497 fps | 95% |
| IMR 8208 XBR | <<locked>> | 80% | 37,275 psi | 60% | 2457 fps | 96.6% |
| Lovex D073.4 | <<locked>> | 80% | 50,705 psi | 81% | 2697 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 80% | 41,481 psi | 67% | 2539 fps | 98.5% |
| Lovex D073.6 | <<locked>> | 80% | 33,446 psi | 54% | 2418 fps | 97.3% |
| Lovex S060 | <<locked>> | 82% | 38,798 psi | 62% | 2444 fps | 95.6% |
| Lovex S062 | <<locked>> | 82% | 33,257 psi | 53% | 2382 fps | 95.3% |
| Norma 200 | <<locked>> | 80% | 49,603 psi | 80% | 2618 fps | 100% |
| Norma 201 | <<locked>> | 80% | 34,824 psi | 56% | 2402 fps | 95.9% |
| Norma 202 | <<locked>> | 80% | 34,635 psi | 56% | 2418 fps | 98.2% |
| Norma 203B | <<locked>> | 86% | 37,391 psi | 60% | 2507 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 88% | 39,639 psi | 64% | 2572 fps | 95.5% |
| Ramshot TAC | <<locked>> | 88% | 48,341 psi | 78% | 2657 fps | 95.2% |
| Ramshot Wild Boar | <<locked>> | 82% | 38,609 psi | 62% | 2516 fps | 95.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 40,640 psi | 65% | 2503 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,599 psi | 41% | 1516 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 41,901 psi | 67% | 2549 fps | 98.9% |
| ReloadSwiss RS 52 | 66.1 gr | 86% | 39,378 psi | 63% | 2608 fps | 95.1% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 32,706 psi | 52% | 2467 fps | 96% |
| Rottweil R 901 | <<locked>> | 80% | 38,392 psi | 62% | 2461 fps | 98.8% |
| Rottweil R 902 | <<locked>> | 80% | 33,040 psi | 53% | 2352 fps | 95.2% |
| Rottweil R 903 | <<locked>> | 88% | 34,432 psi | 55% | 2448 fps | 95% |
| Shooters World AR Plus | <<locked>> | 80% | 50,705 psi | 81% | 2697 fps | 99.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 33,446 psi | 54% | 2418 fps | 97.3% |
| Shooters World Precision | <<locked>> | 82% | 33,257 psi | 53% | 2382 fps | 95.3% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 44,324 psi | 71% | 2559 fps | 97.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 51,416 psi | 82% | 2369 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 46,804 psi | 75% | 2644 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 38,537 psi | 62% | 2552 fps | 95.3% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 44,469 psi | 71% | 2569 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 46,122 psi | 74% | 2631 fps | 95.3% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 38,725 psi | 62% | 2510 fps | 95.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 36,477 psi | 58% | 2379 fps | 98.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 29,762 psi | 48% | 2247 fps | 97.8% |
| Somchem S321 | <<locked>> | 80% | 39,856 psi | 64% | 2533 fps | 97.6% |
| Somchem S335 | <<locked>> | 80% | 36,027 psi | 58% | 2388 fps | 99.1% |
| Somchem S341 | <<locked>> | 84% | 39,842 psi | 64% | 2523 fps | 95.8% |
| Somchem S355 | <<locked>> | 88% | 35,737 psi | 57% | 2461 fps | 95.2% |
| Somchem S365 | <<locked>> | 96% | 32,924 psi | 53% | 2474 fps | 95.2% |
| Vihtavuori N120 | <<locked>> | 80% | 51,271 psi | 82% | 2562 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 41,481 psi | 67% | 2467 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 36,463 psi | 58% | 2388 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 80% | 31,618 psi | 51% | 2356 fps | 99.5% |
| Vihtavuori N140 | <<locked>> | 80% | 32,692 psi | 52% | 2356 fps | 98% |
| Vihtavuori N150 | <<locked>> | 86% | 31,850 psi | 51% | 2352 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 37,173 psi | 60% | 2451 fps | 96.6% |
| Vihtavuori N540 | <<locked>> | 80% | 31,343 psi | 50% | 2339 fps | 97.1% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 37,594 psi | 60% | 2474 fps | 95.4% |
| Winchester 748 | <<locked>> | 80% | 35,810 psi | 57% | 2484 fps | 97.1% |
| Winchester StaBALL Match | <<locked>> | 82% | 35,317 psi | 57% | 2457 fps | 95.1% |
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 .374 | 235gr | Rhino Penetrator. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,894 fps; across all powders the maximum-charge window runs from 1,657 fps to 2,894 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. The 235.0 gr projectile in 0.374" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. 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, ReloadSwiss RS 52, Hodgdon LEVERevolution rank at the top here: for .375 H&H Mag. with the .374 | 235gr | Rhino Penetrator 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.