Load Specifications
Load data in caliber .375 H&H Mag. with .375 | 250gr | Fox Classic Hunter bullet and 90 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 2015 | <<locked>> | 92% | 53,243 psi | 85% | 2582 fps | 100% |
| Accurate 2200 | <<locked>> | 84% | 54,230 psi | 87% | 2667 fps | 98.3% |
| Accurate 2230 | <<locked>> | 84% | 54,868 psi | 88% | 2677 fps | 98.7% |
| Accurate 2460 | <<locked>> | 90% | 55,317 psi | 89% | 2648 fps | 100% |
| Accurate 2495ᴾ | <<locked>> | 100% | 56,188 psi | 90% | 2671 fps | 100% |
| Accurate 2520 | <<locked>> | 92% | 52,808 psi | 85% | 2651 fps | 100% |
| Accurate 4064ᴾ | <<locked>> | 100% | 52,098 psi | 84% | 2661 fps | 100% |
| Accurate LT-30 | <<locked>> | 86% | 54,491 psi | 87% | 2539 fps | 100% |
| Accurate LT-32 | <<locked>> | 86% | 54,911 psi | 88% | 2559 fps | 100% |
| ADI AR 2206H | <<locked>> | 96% | 55,680 psi | 89% | 2700 fps | 99.1% |
| ADI AR 2207 | <<locked>> | 84% | 55,695 psi | 89% | 2559 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 53,388 psi | 86% | 2648 fps | 98.2% |
| ADI AR 2219 | <<locked>> | 86% | 54,447 psi | 87% | 2651 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 94% | 55,477 psi | 89% | 2667 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 94% | 54,143 psi | 87% | 2651 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 88% | 53,084 psi | 85% | 2713 fps | 99.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 98% | 55,405 psi | 89% | 2799 fps | 98.5% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 51,895 psi | 83% | 2664 fps | 99.3% |
| Alliant Reloder-10x | <<locked>> | 88% | 53,606 psi | 86% | 2595 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 98% | 52,910 psi | 85% | 2684 fps | 98.4% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 45,992 psi | 74% | 2651 fps | 98% |
| Alliant Reloder-7 | <<locked>> | 82% | 53,229 psi | 85% | 2533 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 53,243 psi | 85% | 2536 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 96% | 55,666 psi | 89% | 2717 fps | 98.3% |
| Bofors RP3ᴾ | <<locked>> | 100% | 51,663 psi | 83% | 2671 fps | 99.3% |
| Hodgdon Benchmark | <<locked>> | 92% | 54,534 psi | 87% | 2612 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 94% | 53,635 psi | 86% | 2690 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 92% | 55,709 psi | 89% | 2779 fps | 98.8% |
| Hodgdon H322 | <<locked>> | 90% | 56,275 psi | 90% | 2674 fps | 100% |
| Hodgdon H335 | <<locked>> | 88% | 53,911 psi | 86% | 2654 fps | 100% |
| Hodgdon H380ᴾ | <<locked>> | 100% | 53,983 psi | 87% | 2684 fps | 97.4% |
| Hodgdon H4198 | <<locked>> | 82% | 53,316 psi | 85% | 2543 fps | 100% |
| Hodgdon H4895 | <<locked>> | 96% | 56,101 psi | 90% | 2713 fps | 99.5% |
| Hodgdon LEVERevolution | <<locked>> | 98% | 54,389 psi | 87% | 2740 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,852 psi | 54% | 1572 fps | 100% |
| Hodgdon VARGET | <<locked>> | 96% | 54,476 psi | 87% | 2671 fps | 99.2% |
| IMR 3031 | <<locked>> | 96% | 54,853 psi | 88% | 2703 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 56,275 psi | 90% | 2677 fps | 98.8% |
| IMR 4198 | <<locked>> | 88% | 54,462 psi | 87% | 2559 fps | 100% |
| IMR 4895 | <<locked>> | 98% | 54,230 psi | 87% | 2713 fps | 99% |
| IMR 8208 XBR | <<locked>> | 94% | 55,477 psi | 89% | 2667 fps | 99.7% |
| Lovex D073.4 | <<locked>> | 84% | 55,564 psi | 89% | 2661 fps | 100% |
| Lovex D073.5 | <<locked>> | 90% | 55,332 psi | 89% | 2657 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 96% | 54,302 psi | 87% | 2684 fps | 100% |
| Lovex S060 | <<locked>> | 94% | 53,330 psi | 86% | 2595 fps | 98.8% |
| Lovex S062ᴾ | <<locked>> | 100% | 54,984 psi | 88% | 2674 fps | 99.7% |
| Norma 200 | <<locked>> | 84% | 53,345 psi | 86% | 2569 fps | 100% |
| Norma 201 | <<locked>> | 96% | 54,244 psi | 87% | 2651 fps | 99.6% |
| Norma 202 | <<locked>> | 96% | 54,737 psi | 88% | 2664 fps | 100% |
| Norma 203Bᴾ | <<locked>> | 100% | 55,477 psi | 89% | 2720 fps | 99.1% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 56,202 psi | 90% | 2749 fps | 99% |
| Ramshot TAC | <<locked>> | 94% | 56,246 psi | 90% | 2677 fps | 97.1% |
| Ramshot Wild Boar | <<locked>> | 94% | 54,911 psi | 88% | 2697 fps | 99% |
| Ramshot X-Terminator | <<locked>> | 90% | 53,679 psi | 86% | 2625 fps | 98.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,895 psi | 54% | 1608 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 55,390 psi | 89% | 2657 fps | 100% |
| ReloadSwiss RS 50ᴾ | <<locked>> | 100% | 55,158 psi | 88% | 2667 fps | 95.8% |
| ReloadSwiss RS 52 | <<locked>> | 98% | 56,115 psi | 90% | 2795 fps | 98.9% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 49,313 psi | 79% | 2720 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 94% | 55,085 psi | 88% | 2641 fps | 100% |
| Rottweil R 902 | <<locked>> | 98% | 54,491 psi | 87% | 2644 fps | 99.6% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 47,906 psi | 77% | 2608 fps | 98.6% |
| Shooters World AR Plus | <<locked>> | 84% | 55,564 psi | 89% | 2661 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 96% | 54,302 psi | 87% | 2684 fps | 100% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 54,984 psi | 88% | 2674 fps | 99.7% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 55,854 psi | 90% | 2631 fps | 99.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 55,245 psi | 89% | 2313 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 54,665 psi | 88% | 2657 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 50,357 psi | 81% | 2671 fps | 98.3% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 54,708 psi | 88% | 2612 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 94% | 53,882 psi | 86% | 2648 fps | 97.2% |
| SNPE Vectan SP 9 | <<locked>> | 96% | 54,186 psi | 87% | 2677 fps | 98.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 53,751 psi | 86% | 2566 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 52,852 psi | 85% | 2559 fps | 100% |
| Somchem S321 | <<locked>> | 90% | 52,997 psi | 85% | 2654 fps | 99.6% |
| Somchem S335 | <<locked>> | 96% | 55,724 psi | 89% | 2605 fps | 100% |
| Somchem S341 | <<locked>> | 94% | 53,272 psi | 85% | 2648 fps | 98.7% |
| Somchem S355ᴾ | <<locked>> | 100% | 49,168 psi | 79% | 2615 fps | 98.6% |
| Somchem S365ᴾ | <<locked>> | 100% | 34,969 psi | 56% | 2434 fps | 96.4% |
| Vihtavuori N120 | <<locked>> | 84% | 55,593 psi | 89% | 2510 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 53,708 psi | 86% | 2546 fps | 100% |
| Vihtavuori N133 | <<locked>> | 94% | 53,461 psi | 86% | 2556 fps | 100% |
| Vihtavuori N135 | <<locked>> | 98% | 53,040 psi | 85% | 2621 fps | 100% |
| Vihtavuori N140 | <<locked>> | 98% | 55,230 psi | 89% | 2641 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 47,369 psi | 76% | 2556 fps | 99.2% |
| Vihtavuori N530 | <<locked>> | 94% | 56,260 psi | 90% | 2671 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 98% | 53,287 psi | 85% | 2638 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 43,584 psi | 70% | 2497 fps | 97.4% |
| Winchester 748 | <<locked>> | 94% | 54,752 psi | 88% | 2710 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 96% | 53,519 psi | 86% | 2680 fps | 99.2% |
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% | 36,463 psi | 58% | 2320 fps | 99.9% |
| Accurate 2200 | <<locked>> | 80% | 47,471 psi | 76% | 2559 fps | 97.1% |
| Accurate 2230 | <<locked>> | 80% | 47,456 psi | 76% | 2566 fps | 97.5% |
| Accurate 2460 | <<locked>> | 80% | 39,233 psi | 63% | 2402 fps | 99.1% |
| Accurate 2495 | <<locked>> | 80% | 28,485 psi | 46% | 2211 fps | 99.2% |
| Accurate 2520 | <<locked>> | 80% | 34,708 psi | 56% | 2349 fps | 97.9% |
| Accurate 4064 | <<locked>> | 80% | 27,021 psi | 43% | 2188 fps | 96.4% |
| Accurate LT-30 | <<locked>> | 80% | 45,295 psi | 73% | 2408 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 45,672 psi | 73% | 2425 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 84% | 38,043 psi | 61% | 2402 fps | 95.6% |
| ADI AR 2207 | <<locked>> | 80% | 49,226 psi | 79% | 2477 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 39,233 psi | 63% | 2408 fps | 95.1% |
| ADI AR 2219 | <<locked>> | 80% | 44,266 psi | 71% | 2503 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 35,505 psi | 57% | 2326 fps | 96.2% |
| Alliant AR-Comp | <<locked>> | 80% | 33,794 psi | 54% | 2343 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 40,669 psi | 65% | 2503 fps | 97.2% |
| Alliant Power Pro 2000-MR | 66.2 gr | 90% | 42,177 psi | 68% | 2569 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 33,054 psi | 53% | 2323 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 41,800 psi | 67% | 2421 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 38,406 psi | 62% | 2431 fps | 95.1% |
| Alliant Reloder-17 | <<locked>> | 94% | 37,594 psi | 60% | 2480 fps | 95.5% |
| Alliant Reloder-7 | <<locked>> | 80% | 50,111 psi | 80% | 2490 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 44,005 psi | 71% | 2405 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 42,395 psi | 68% | 2503 fps | 95.6% |
| Bofors RP3 | <<locked>> | 88% | 34,389 psi | 55% | 2369 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 37,695 psi | 60% | 2329 fps | 97.5% |
| Hodgdon BL-C2 | <<locked>> | 80% | 33,040 psi | 53% | 2329 fps | 96.2% |
| Hodgdon CFE223 | 61.8 gr | 82% | 39,320 psi | 63% | 2500 fps | 95.3% |
| Hodgdon H322 | <<locked>> | 80% | 40,350 psi | 65% | 2438 fps | 99.8% |
| Hodgdon H335 | <<locked>> | 80% | 41,002 psi | 66% | 2454 fps | 99.5% |
| Hodgdon H380 | <<locked>> | 94% | 44,164 psi | 71% | 2530 fps | 95.2% |
| Hodgdon H4198 | <<locked>> | 80% | 49,966 psi | 80% | 2493 fps | 100% |
| Hodgdon H4895 | <<locked>> | 82% | 35,955 psi | 58% | 2365 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 34,142 psi | 55% | 2372 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,932 psi | 40% | 1401 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 34,853 psi | 56% | 2326 fps | 95.1% |
| IMR 3031 | <<locked>> | 80% | 32,169 psi | 52% | 2326 fps | 99.2% |
| IMR 4064 | <<locked>> | 88% | 38,522 psi | 62% | 2388 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 43,033 psi | 69% | 2398 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 36,753 psi | 59% | 2411 fps | 95.3% |
| IMR 8208 XBR | <<locked>> | 80% | 35,505 psi | 57% | 2326 fps | 96.2% |
| Lovex D073.4 | <<locked>> | 80% | 48,095 psi | 77% | 2556 fps | 99.7% |
| Lovex D073.5 | <<locked>> | 80% | 39,030 psi | 63% | 2402 fps | 98.2% |
| Lovex D073.6 | <<locked>> | 80% | 31,198 psi | 50% | 2283 fps | 96.8% |
| Lovex S060 | <<locked>> | 82% | 36,970 psi | 59% | 2313 fps | 95.3% |
| Lovex S062 | <<locked>> | 84% | 33,344 psi | 53% | 2297 fps | 95.7% |
| Norma 200 | <<locked>> | 80% | 46,992 psi | 75% | 2480 fps | 100% |
| Norma 201 | <<locked>> | 80% | 32,706 psi | 52% | 2267 fps | 95.4% |
| Norma 202 | <<locked>> | 80% | 32,692 psi | 52% | 2287 fps | 97.9% |
| Norma 203B | <<locked>> | 88% | 37,637 psi | 60% | 2421 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 88% | 37,579 psi | 60% | 2434 fps | 95.1% |
| Ramshot TAC | <<locked>> | 90% | 49,458 psi | 79% | 2575 fps | 95.7% |
| Ramshot Wild Boar | <<locked>> | 82% | 36,535 psi | 59% | 2382 fps | 95% |
| Ramshot X-Terminator | <<locked>> | 80% | 38,609 psi | 62% | 2369 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,077 psi | 40% | 1437 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 40,030 psi | 64% | 2418 fps | 98.7% |
| ReloadSwiss RS 50 | <<locked>> | 98% | 51,503 psi | 83% | 2615 fps | 95.1% |
| ReloadSwiss RS 52 | 62.8 gr | 88% | 39,842 psi | 64% | 2523 fps | 95.5% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 30,908 psi | 50% | 2326 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 36,056 psi | 58% | 2323 fps | 98.5% |
| Rottweil R 902 | <<locked>> | 82% | 33,040 psi | 53% | 2270 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 90% | 34,330 psi | 55% | 2359 fps | 95.3% |
| Shooters World AR Plus | <<locked>> | 80% | 48,095 psi | 77% | 2556 fps | 99.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 31,198 psi | 50% | 2283 fps | 96.8% |
| Shooters World Precision | <<locked>> | 84% | 33,344 psi | 53% | 2297 fps | 95.7% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 42,337 psi | 68% | 2428 fps | 97.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 49,908 psi | 80% | 2251 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 44,730 psi | 72% | 2510 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 38,783 psi | 62% | 2464 fps | 95.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 42,554 psi | 68% | 2434 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 46,731 psi | 75% | 2539 fps | 95.7% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 36,608 psi | 59% | 2372 fps | 95.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 34,722 psi | 56% | 2254 fps | 98.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 28,123 psi | 45% | 2123 fps | 97.4% |
| Somchem S321 | <<locked>> | 80% | 37,710 psi | 60% | 2395 fps | 97.3% |
| Somchem S335 | <<locked>> | 80% | 34,011 psi | 55% | 2257 fps | 98.8% |
| Somchem S341 | <<locked>> | 84% | 37,782 psi | 61% | 2388 fps | 95.3% |
| Somchem S355 | <<locked>> | 90% | 35,694 psi | 57% | 2372 fps | 95.5% |
| Somchem S365 | <<locked>> | 98% | 32,808 psi | 53% | 2382 fps | 95.5% |
| Vihtavuori N120 | <<locked>> | 80% | 49,211 psi | 79% | 2431 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 39,595 psi | 63% | 2339 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 34,737 psi | 56% | 2264 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 80% | 29,660 psi | 48% | 2228 fps | 99.3% |
| Vihtavuori N140 | <<locked>> | 80% | 30,835 psi | 49% | 2228 fps | 97.7% |
| Vihtavuori N150 | <<locked>> | 88% | 31,836 psi | 51% | 2267 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 35,230 psi | 56% | 2320 fps | 96.3% |
| Vihtavuori N540 | <<locked>> | 80% | 29,544 psi | 47% | 2211 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 38,101 psi | 61% | 2392 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 33,953 psi | 54% | 2352 fps | 96.8% |
| Winchester StaBALL Match | <<locked>> | 84% | 35,665 psi | 57% | 2375 fps | 95.6% |
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 90 powders for .375 H&H Mag. loaded with the .375 | 250gr | Fox Classic Hunter. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,799 fps; across all powders the maximum-charge window runs from 1,572 fps to 2,799 fps. Accurate 2495 gives the best case fill at 100 %, and 90 of the 90 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. The 250.0 gr projectile in 0.375" calls for a 1:15.5 twist; slower twists will usually not stabilise this weight. 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 | 250gr | Fox Classic Hunter 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.