Load Specifications
Load data in caliber .375 H&H Mag. with .375 | 250gr | Barnes Solid BT 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 2015 | <<locked>> | 92% | 53,737 psi | 86% | 2572 fps | 100% |
| Accurate 2200 | <<locked>> | 84% | 54,679 psi | 88% | 2657 fps | 98.2% |
| Accurate 2230 | <<locked>> | 84% | 55,332 psi | 89% | 2667 fps | 98.6% |
| Accurate 2460 | <<locked>> | 90% | 55,840 psi | 90% | 2641 fps | 100% |
| Accurate 2495 | <<locked>> | 98% | 53,447 psi | 86% | 2625 fps | 100% |
| Accurate 2520 | <<locked>> | 92% | 53,243 psi | 85% | 2644 fps | 100% |
| Accurate 4064ᴾ | <<locked>> | 100% | 52,837 psi | 85% | 2657 fps | 100% |
| Accurate LT-30 | <<locked>> | 86% | 54,795 psi | 88% | 2530 fps | 100% |
| Accurate LT-32 | <<locked>> | 86% | 55,259 psi | 89% | 2549 fps | 100% |
| ADI AR 2206H | <<locked>> | 96% | 55,941 psi | 90% | 2690 fps | 99% |
| ADI AR 2207 | <<locked>> | 84% | 56,043 psi | 90% | 2552 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 53,606 psi | 86% | 2638 fps | 98.2% |
| ADI AR 2219 | <<locked>> | 86% | 54,694 psi | 88% | 2641 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 94% | 55,608 psi | 89% | 2657 fps | 99.6% |
| Alliant AR-Comp | <<locked>> | 94% | 54,418 psi | 87% | 2644 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 88% | 53,388 psi | 86% | 2703 fps | 99.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 98% | 55,767 psi | 89% | 2789 fps | 98.4% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 52,243 psi | 84% | 2657 fps | 99.2% |
| Alliant Reloder-10x | <<locked>> | 88% | 53,896 psi | 86% | 2585 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 98% | 53,243 psi | 85% | 2674 fps | 98.3% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 46,282 psi | 74% | 2641 fps | 97.9% |
| Alliant Reloder-7 | <<locked>> | 82% | 53,664 psi | 86% | 2526 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 53,563 psi | 86% | 2530 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 96% | 55,738 psi | 89% | 2703 fps | 98.2% |
| Bofors RP3ᴾ | <<locked>> | 100% | 52,156 psi | 84% | 2667 fps | 99.3% |
| Hodgdon Benchmark | <<locked>> | 92% | 54,926 psi | 88% | 2602 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 94% | 54,056 psi | 87% | 2684 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 92% | 55,912 psi | 90% | 2769 fps | 98.7% |
| Hodgdon H322 | <<locked>> | 88% | 52,866 psi | 85% | 2618 fps | 100% |
| Hodgdon H335 | <<locked>> | 88% | 54,085 psi | 87% | 2644 fps | 100% |
| Hodgdon H380ᴾ | <<locked>> | 100% | 54,172 psi | 87% | 2671 fps | 97.2% |
| Hodgdon H4198 | <<locked>> | 82% | 53,534 psi | 86% | 2533 fps | 100% |
| Hodgdon H4895 | <<locked>> | 96% | 56,376 psi | 90% | 2703 fps | 99.4% |
| Hodgdon LEVERevolution | <<locked>> | 98% | 54,723 psi | 88% | 2730 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,026 psi | 55% | 1565 fps | 100% |
| Hodgdon VARGET | <<locked>> | 96% | 54,621 psi | 88% | 2657 fps | 99.2% |
| IMR 3031 | <<locked>> | 96% | 55,230 psi | 89% | 2697 fps | 100% |
| IMR 4064 | <<locked>> | 98% | 53,171 psi | 85% | 2621 fps | 98.3% |
| IMR 4198 | <<locked>> | 88% | 54,636 psi | 88% | 2549 fps | 100% |
| IMR 4895 | <<locked>> | 98% | 54,476 psi | 87% | 2703 fps | 99% |
| IMR 8208 XBR | <<locked>> | 94% | 55,608 psi | 89% | 2657 fps | 99.6% |
| Lovex D073.4 | <<locked>> | 84% | 56,086 psi | 90% | 2654 fps | 100% |
| Lovex D073.5 | <<locked>> | 90% | 55,811 psi | 89% | 2648 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 96% | 54,534 psi | 87% | 2674 fps | 100% |
| Lovex S060 | <<locked>> | 94% | 53,693 psi | 86% | 2585 fps | 98.7% |
| Lovex S062ᴾ | <<locked>> | 100% | 55,376 psi | 89% | 2664 fps | 99.7% |
| Norma 200 | <<locked>> | 84% | 54,157 psi | 87% | 2562 fps | 100% |
| Norma 201 | <<locked>> | 96% | 54,636 psi | 88% | 2641 fps | 99.6% |
| Norma 202 | <<locked>> | 96% | 54,940 psi | 88% | 2654 fps | 100% |
| Norma 203Bᴾ | <<locked>> | 100% | 55,796 psi | 89% | 2713 fps | 99.1% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 56,376 psi | 90% | 2736 fps | 99% |
| Ramshot TAC | <<locked>> | 92% | 52,953 psi | 85% | 2615 fps | 96.3% |
| Ramshot Wild Boar | <<locked>> | 94% | 55,230 psi | 89% | 2687 fps | 98.9% |
| Ramshot X-Terminator | <<locked>> | 90% | 53,940 psi | 86% | 2612 fps | 98.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,142 psi | 55% | 1601 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 55,738 psi | 89% | 2651 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 98% | 56,434 psi | 90% | 2785 fps | 98.8% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 49,501 psi | 79% | 2710 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 94% | 55,854 psi | 90% | 2635 fps | 100% |
| Rottweil R 902 | <<locked>> | 98% | 54,926 psi | 88% | 2638 fps | 99.6% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 48,414 psi | 78% | 2602 fps | 98.6% |
| Shooters World AR Plus | <<locked>> | 84% | 56,086 psi | 90% | 2654 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 96% | 54,534 psi | 87% | 2674 fps | 100% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 55,376 psi | 89% | 2664 fps | 99.7% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 56,057 psi | 90% | 2621 fps | 99.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 55,738 psi | 89% | 2306 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 55,071 psi | 88% | 2651 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 50,691 psi | 81% | 2661 fps | 98.3% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 55,056 psi | 88% | 2605 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 94% | 54,085 psi | 87% | 2638 fps | 97% |
| SNPE Vectan SP 9 | <<locked>> | 96% | 54,462 psi | 87% | 2667 fps | 98.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 54,114 psi | 87% | 2559 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 53,229 psi | 85% | 2549 fps | 100% |
| Somchem S321 | <<locked>> | 90% | 53,345 psi | 86% | 2644 fps | 99.6% |
| Somchem S335 | <<locked>> | 96% | 56,028 psi | 90% | 2598 fps | 100% |
| Somchem S341 | <<locked>> | 94% | 53,592 psi | 86% | 2638 fps | 98.6% |
| Somchem S355ᴾ | <<locked>> | 100% | 49,588 psi | 80% | 2608 fps | 98.6% |
| Somchem S365ᴾ | <<locked>> | 100% | 35,520 psi | 57% | 2431 fps | 96.4% |
| Vihtavuori N120 | <<locked>> | 84% | 55,941 psi | 90% | 2503 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 53,954 psi | 87% | 2536 fps | 100% |
| Vihtavuori N133 | <<locked>> | 94% | 53,766 psi | 86% | 2549 fps | 100% |
| Vihtavuori N135 | <<locked>> | 98% | 53,476 psi | 86% | 2615 fps | 100% |
| Vihtavuori N140 | <<locked>> | 98% | 55,477 psi | 89% | 2631 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 47,747 psi | 77% | 2549 fps | 99.2% |
| Vihtavuori N530 | <<locked>> | 94% | 56,405 psi | 90% | 2657 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 98% | 53,693 psi | 86% | 2631 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 43,758 psi | 70% | 2487 fps | 97.2% |
| Winchester 748 | <<locked>> | 94% | 54,955 psi | 88% | 2700 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 96% | 53,853 psi | 86% | 2674 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% | 37,115 psi | 60% | 2316 fps | 99.9% |
| Accurate 2200 | <<locked>> | 80% | 47,834 psi | 77% | 2552 fps | 97% |
| Accurate 2230 | <<locked>> | 80% | 48,124 psi | 77% | 2559 fps | 97.5% |
| Accurate 2460 | <<locked>> | 80% | 40,001 psi | 64% | 2402 fps | 99.1% |
| Accurate 2495 | <<locked>> | 80% | 29,573 psi | 47% | 2221 fps | 99.3% |
| Accurate 2520 | <<locked>> | 80% | 35,331 psi | 57% | 2346 fps | 97.9% |
| Accurate 4064 | <<locked>> | 80% | 28,021 psi | 45% | 2198 fps | 96.7% |
| Accurate LT-30 | <<locked>> | 80% | 45,788 psi | 73% | 2402 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 46,151 psi | 74% | 2418 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 84% | 38,624 psi | 62% | 2402 fps | 95.6% |
| ADI AR 2207 | <<locked>> | 80% | 49,530 psi | 79% | 2467 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 39,595 psi | 63% | 2402 fps | 95% |
| ADI AR 2219 | <<locked>> | 80% | 44,512 psi | 71% | 2493 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 35,998 psi | 58% | 2323 fps | 96.3% |
| Alliant AR-Comp | <<locked>> | 80% | 34,258 psi | 55% | 2339 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 41,176 psi | 66% | 2497 fps | 97.1% |
| Alliant Power Pro 2000-MR | 65.2 gr | 90% | 42,670 psi | 68% | 2562 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 33,547 psi | 54% | 2323 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 42,293 psi | 68% | 2415 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 38,856 psi | 62% | 2428 fps | 95.1% |
| Alliant Reloder-17 | <<locked>> | 94% | 38,043 psi | 61% | 2477 fps | 95.5% |
| Alliant Reloder-7 | <<locked>> | 80% | 50,546 psi | 81% | 2484 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 44,266 psi | 71% | 2398 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 42,888 psi | 69% | 2500 fps | 95.5% |
| Bofors RP3 | <<locked>> | 88% | 35,056 psi | 56% | 2369 fps | 95.8% |
| Hodgdon Benchmark | <<locked>> | 80% | 38,189 psi | 61% | 2326 fps | 97.5% |
| Hodgdon BL-C2 | <<locked>> | 80% | 33,576 psi | 54% | 2326 fps | 96.2% |
| Hodgdon CFE223 | 60.8 gr | 82% | 39,726 psi | 64% | 2493 fps | 95.2% |
| Hodgdon H322 | <<locked>> | 80% | 40,785 psi | 65% | 2431 fps | 99.8% |
| Hodgdon H335 | <<locked>> | 80% | 41,350 psi | 66% | 2448 fps | 99.5% |
| Hodgdon H380 | <<locked>> | 94% | 44,614 psi | 72% | 2523 fps | 95.2% |
| Hodgdon H4198 | <<locked>> | 80% | 50,357 psi | 81% | 2487 fps | 100% |
| Hodgdon H4895 | <<locked>> | 82% | 36,405 psi | 58% | 2362 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 34,606 psi | 55% | 2369 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,179 psi | 40% | 1394 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 35,331 psi | 57% | 2323 fps | 95.1% |
| IMR 3031 | <<locked>> | 80% | 32,692 psi | 52% | 2326 fps | 99.3% |
| IMR 4064 | <<locked>> | 88% | 39,117 psi | 63% | 2385 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 43,395 psi | 70% | 2392 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 37,405 psi | 60% | 2411 fps | 95.4% |
| IMR 8208 XBR | <<locked>> | 80% | 35,998 psi | 58% | 2323 fps | 96.3% |
| Lovex D073.4 | <<locked>> | 80% | 48,776 psi | 78% | 2552 fps | 99.7% |
| Lovex D073.5 | <<locked>> | 80% | 39,711 psi | 64% | 2398 fps | 98.2% |
| Lovex D073.6 | <<locked>> | 80% | 31,778 psi | 51% | 2280 fps | 96.9% |
| Lovex S060 | <<locked>> | 82% | 37,405 psi | 60% | 2306 fps | 95.2% |
| Lovex S062 | <<locked>> | 84% | 33,881 psi | 54% | 2297 fps | 95.7% |
| Norma 200 | <<locked>> | 80% | 47,747 psi | 77% | 2477 fps | 100% |
| Norma 201 | <<locked>> | 80% | 33,431 psi | 54% | 2267 fps | 95.5% |
| Norma 202 | <<locked>> | 80% | 33,228 psi | 53% | 2287 fps | 98% |
| Norma 203B | <<locked>> | 88% | 38,145 psi | 61% | 2418 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 88% | 37,927 psi | 61% | 2425 fps | 95% |
| Ramshot TAC | <<locked>> | 90% | 49,792 psi | 80% | 2566 fps | 95.6% |
| Ramshot Wild Boar | <<locked>> | 82% | 36,985 psi | 59% | 2379 fps | 95% |
| Ramshot X-Terminator | <<locked>> | 80% | 39,044 psi | 63% | 2362 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,396 psi | 41% | 1430 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 40,335 psi | 65% | 2408 fps | 98.6% |
| ReloadSwiss RS 52 | 61.8 gr | 88% | 40,350 psi | 65% | 2520 fps | 95.5% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 31,444 psi | 50% | 2326 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 37,072 psi | 59% | 2326 fps | 98.6% |
| Rottweil R 902 | <<locked>> | 82% | 33,779 psi | 54% | 2270 fps | 95.6% |
| Rottweil R 903 | <<locked>> | 90% | 34,969 psi | 56% | 2359 fps | 95.4% |
| Shooters World AR Plus | <<locked>> | 80% | 48,776 psi | 78% | 2552 fps | 99.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 31,778 psi | 51% | 2280 fps | 96.9% |
| Shooters World Precision | <<locked>> | 84% | 33,881 psi | 54% | 2297 fps | 95.7% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 42,714 psi | 68% | 2418 fps | 97.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 50,111 psi | 80% | 2241 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 45,034 psi | 72% | 2503 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 39,320 psi | 63% | 2461 fps | 95.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 42,859 psi | 69% | 2428 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 47,152 psi | 76% | 2533 fps | 95.6% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 37,217 psi | 60% | 2372 fps | 95.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 35,230 psi | 56% | 2251 fps | 98.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 28,616 psi | 46% | 2123 fps | 97.5% |
| Somchem S321 | <<locked>> | 80% | 38,159 psi | 61% | 2392 fps | 97.2% |
| Somchem S335 | <<locked>> | 80% | 34,679 psi | 56% | 2257 fps | 98.9% |
| Somchem S341 | <<locked>> | 84% | 38,101 psi | 61% | 2382 fps | 95.3% |
| Somchem S355 | <<locked>> | 90% | 36,260 psi | 58% | 2369 fps | 95.5% |
| Somchem S365 | <<locked>> | 98% | 33,301 psi | 53% | 2379 fps | 95.5% |
| Vihtavuori N120 | <<locked>> | 80% | 49,516 psi | 79% | 2421 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 40,045 psi | 64% | 2333 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 35,186 psi | 56% | 2257 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 80% | 30,226 psi | 48% | 2224 fps | 99.3% |
| Vihtavuori N140 | <<locked>> | 80% | 31,415 psi | 50% | 2228 fps | 97.8% |
| Vihtavuori N150 | <<locked>> | 86% | 30,472 psi | 49% | 2221 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 35,781 psi | 57% | 2316 fps | 96.3% |
| Vihtavuori N540 | <<locked>> | 80% | 30,182 psi | 48% | 2211 fps | 96.8% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 38,464 psi | 62% | 2385 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 34,374 psi | 55% | 2346 fps | 96.8% |
| Winchester StaBALL Match | <<locked>> | 84% | 36,114 psi | 58% | 2372 fps | 95.5% |
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 | 250gr | Barnes Solid BT. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,789 fps; across all powders the maximum-charge window runs from 1,565 fps to 2,789 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 250.0 gr projectile in 0.375" calls for a 1:15.0 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 CFE223 rank at the top here: for .375 H&H Mag. with the .375 | 250gr | Barnes Solid BT 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.