Load Specifications
Load data in caliber .375 H&H Mag. with .376 | 256gr | Peregrine VLR-5 bullet and 92 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>> | 92% | 55,071 psi | 88% | 2575 fps | 100% |
| Accurate 2200 | <<locked>> | 84% | 55,999 psi | 90% | 2671 fps | 98.8% |
| Accurate 2230 | <<locked>> | 82% | 52,794 psi | 85% | 2625 fps | 98.7% |
| Accurate 2460 | <<locked>> | 88% | 53,592 psi | 86% | 2602 fps | 100% |
| Accurate 2495 | <<locked>> | 98% | 54,636 psi | 88% | 2625 fps | 100% |
| Accurate 2520 | <<locked>> | 92% | 54,882 psi | 88% | 2654 fps | 100% |
| Accurate 4064ᴾ | <<locked>> | 100% | 54,302 psi | 87% | 2664 fps | 100% |
| Accurate LT-30 | <<locked>> | 86% | 56,072 psi | 90% | 2536 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 53,069 psi | 85% | 2513 fps | 100% |
| ADI AR 2206H | <<locked>> | 94% | 54,099 psi | 87% | 2657 fps | 99.2% |
| ADI AR 2207 | <<locked>> | 82% | 53,664 psi | 86% | 2507 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 54,984 psi | 88% | 2648 fps | 98.8% |
| ADI AR 2219 | <<locked>> | 86% | 55,970 psi | 90% | 2644 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 92% | 53,693 psi | 86% | 2618 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 94% | 56,231 psi | 90% | 2648 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 88% | 55,027 psi | 88% | 2717 fps | 99.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 96% | 53,693 psi | 86% | 2753 fps | 98.6% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 53,635 psi | 86% | 2664 fps | 99.6% |
| Alliant Reloder-10x | <<locked>> | 88% | 55,143 psi | 88% | 2585 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 98% | 54,882 psi | 88% | 2687 fps | 98.9% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 47,630 psi | 76% | 2661 fps | 98.7% |
| Alliant Reloder-7 | <<locked>> | 82% | 54,694 psi | 88% | 2526 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 54,940 psi | 88% | 2533 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 94% | 53,853 psi | 86% | 2667 fps | 98.3% |
| Bofors RP3ᴾ | <<locked>> | 100% | 53,751 psi | 86% | 2677 fps | 99.7% |
| Hodgdon Benchmark | <<locked>> | 92% | 56,101 psi | 90% | 2608 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 94% | 55,666 psi | 89% | 2694 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 90% | 53,925 psi | 86% | 2730 fps | 98.9% |
| Hodgdon H322 | <<locked>> | 88% | 54,418 psi | 87% | 2625 fps | 100% |
| Hodgdon H335 | <<locked>> | 88% | 55,622 psi | 89% | 2651 fps | 100% |
| Hodgdon H380ᴾ | <<locked>> | 100% | 55,941 psi | 90% | 2690 fps | 98% |
| Hodgdon H4198 | <<locked>> | 82% | 54,694 psi | 88% | 2536 fps | 100% |
| Hodgdon H4895 | <<locked>> | 94% | 54,578 psi | 88% | 2667 fps | 99.5% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 37,637 psi | 60% | 2408 fps | 96.2% |
| Hodgdon LEVERevolution | <<locked>> | 98% | 56,405 psi | 90% | 2743 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,055 psi | 55% | 1562 fps | 100% |
| Hodgdon VARGET | <<locked>> | 96% | 56,391 psi | 90% | 2674 fps | 99.6% |
| IMR 3031 | <<locked>> | 94% | 53,403 psi | 86% | 2661 fps | 100% |
| IMR 4064 | <<locked>> | 98% | 54,607 psi | 88% | 2635 fps | 98.9% |
| IMR 4198 | <<locked>> | 88% | 55,956 psi | 90% | 2549 fps | 100% |
| IMR 4895 | <<locked>> | 98% | 56,202 psi | 90% | 2720 fps | 99.4% |
| IMR 8208 XBR | <<locked>> | 92% | 53,693 psi | 86% | 2618 fps | 99.7% |
| Lovex D073.4 | <<locked>> | 82% | 53,490 psi | 86% | 2608 fps | 100% |
| Lovex D073.5 | <<locked>> | 88% | 53,548 psi | 86% | 2608 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 96% | 56,202 psi | 90% | 2680 fps | 100% |
| Lovex S060 | <<locked>> | 94% | 54,839 psi | 88% | 2595 fps | 99.2% |
| Lovex S062 | <<locked>> | 98% | 53,447 psi | 86% | 2628 fps | 99.7% |
| Norma 200 | <<locked>> | 84% | 54,926 psi | 88% | 2559 fps | 100% |
| Norma 201 | <<locked>> | 96% | 55,956 psi | 90% | 2651 fps | 99.9% |
| Norma 202 | <<locked>> | 94% | 52,982 psi | 85% | 2618 fps | 100% |
| Norma 203B | <<locked>> | 98% | 53,896 psi | 86% | 2677 fps | 99.2% |
| Ramshot Big Game | <<locked>> | 98% | 54,549 psi | 87% | 2700 fps | 99.1% |
| Ramshot TAC | <<locked>> | 92% | 54,375 psi | 87% | 2628 fps | 97.1% |
| Ramshot Wild Boar | <<locked>> | 92% | 53,142 psi | 85% | 2648 fps | 99% |
| Ramshot X-Terminator | <<locked>> | 90% | 55,230 psi | 89% | 2621 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,113 psi | 55% | 1598 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 53,606 psi | 86% | 2612 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 98% | 53,272 psi | 85% | 2621 fps | 95.9% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 54,563 psi | 87% | 2749 fps | 98.9% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 50,995 psi | 82% | 2726 fps | 100% |
| Rottweil R 901 | <<locked>> | 92% | 53,635 psi | 86% | 2595 fps | 100% |
| Rottweil R 902 | <<locked>> | 98% | 56,202 psi | 90% | 2644 fps | 99.8% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 49,850 psi | 80% | 2615 fps | 99.1% |
| Shooters World AR Plus | <<locked>> | 82% | 53,490 psi | 86% | 2608 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 96% | 56,202 psi | 90% | 2680 fps | 100% |
| Shooters World Precision | <<locked>> | 98% | 53,447 psi | 86% | 2628 fps | 99.7% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 53,679 psi | 86% | 2582 fps | 99.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 56,362 psi | 90% | 2303 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 56,376 psi | 90% | 2654 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 52,373 psi | 84% | 2680 fps | 98.9% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 56,318 psi | 90% | 2605 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 94% | 55,811 psi | 89% | 2654 fps | 97.9% |
| SNPE Vectan SP 9 | <<locked>> | 96% | 56,086 psi | 90% | 2680 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 55,419 psi | 89% | 2562 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 54,723 psi | 88% | 2559 fps | 100% |
| Somchem S321 | <<locked>> | 90% | 54,940 psi | 88% | 2657 fps | 99.9% |
| Somchem S335 | <<locked>> | 94% | 54,157 psi | 87% | 2562 fps | 100% |
| Somchem S341 | <<locked>> | 94% | 55,143 psi | 88% | 2651 fps | 99.2% |
| Somchem S355ᴾ | <<locked>> | 100% | 51,053 psi | 82% | 2618 fps | 99.1% |
| Somchem S365ᴾ | <<locked>> | 100% | 36,361 psi | 58% | 2451 fps | 97.4% |
| Vihtavuori N120 | <<locked>> | 82% | 53,621 psi | 86% | 2461 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 55,376 psi | 89% | 2539 fps | 100% |
| Vihtavuori N133 | <<locked>> | 94% | 55,172 psi | 88% | 2552 fps | 100% |
| Vihtavuori N135 | <<locked>> | 98% | 55,187 psi | 88% | 2621 fps | 100% |
| Vihtavuori N140 | <<locked>> | 96% | 53,679 psi | 86% | 2598 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 49,226 psi | 79% | 2559 fps | 99.6% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 43,497 psi | 70% | 2510 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 92% | 54,302 psi | 87% | 2621 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 98% | 55,187 psi | 88% | 2638 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 44,933 psi | 72% | 2503 fps | 98.1% |
| Winchester 748 | <<locked>> | 92% | 53,026 psi | 85% | 2664 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 96% | 55,477 psi | 89% | 2687 fps | 99.6% |
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% | 37,565 psi | 60% | 2316 fps | 100% |
| Accurate 2200 | <<locked>> | 80% | 48,863 psi | 78% | 2562 fps | 97.7% |
| Accurate 2230 | <<locked>> | 80% | 49,168 psi | 79% | 2569 fps | 98.1% |
| Accurate 2460 | <<locked>> | 80% | 40,712 psi | 65% | 2405 fps | 99.5% |
| Accurate 2495 | <<locked>> | 80% | 29,747 psi | 48% | 2218 fps | 99.6% |
| Accurate 2520 | <<locked>> | 80% | 35,998 psi | 58% | 2352 fps | 98.5% |
| Accurate 4064 | <<locked>> | 80% | 28,195 psi | 45% | 2198 fps | 97.3% |
| Accurate LT-30 | <<locked>> | 80% | 46,543 psi | 75% | 2405 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 46,920 psi | 75% | 2421 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 82% | 36,927 psi | 59% | 2359 fps | 95.7% |
| ADI AR 2207 | <<locked>> | 80% | 50,488 psi | 81% | 2467 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 38,043 psi | 61% | 2365 fps | 95.2% |
| ADI AR 2219 | <<locked>> | 80% | 45,716 psi | 73% | 2503 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 36,637 psi | 59% | 2329 fps | 97% |
| Alliant AR-Comp | <<locked>> | 80% | 35,114 psi | 56% | 2343 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 42,105 psi | 68% | 2507 fps | 97.8% |
| Alliant Power Pro 2000-MR | 65.6 gr | 88% | 40,828 psi | 65% | 2523 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 32,024 psi | 51% | 2280 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 43,018 psi | 69% | 2415 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 37,289 psi | 60% | 2388 fps | 95.2% |
| Alliant Reloder-17 | <<locked>> | 92% | 36,434 psi | 58% | 2441 fps | 95.6% |
| Alliant Reloder-7 | <<locked>> | 80% | 51,547 psi | 83% | 2484 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 45,150 psi | 72% | 2402 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 41,133 psi | 66% | 2461 fps | 95.7% |
| Bofors RP3 | <<locked>> | 86% | 33,301 psi | 53% | 2323 fps | 95.8% |
| Hodgdon Benchmark | <<locked>> | 80% | 38,812 psi | 62% | 2333 fps | 98.1% |
| Hodgdon BL-C2 | <<locked>> | 80% | 34,214 psi | 55% | 2333 fps | 97% |
| Hodgdon CFE223 | 61 gr | 80% | 37,869 psi | 61% | 2451 fps | 95.3% |
| Hodgdon H322 | <<locked>> | 80% | 41,756 psi | 67% | 2438 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 42,264 psi | 68% | 2454 fps | 99.7% |
| Hodgdon H380 | <<locked>> | 92% | 42,801 psi | 69% | 2484 fps | 95.3% |
| Hodgdon H4198 | <<locked>> | 80% | 51,271 psi | 82% | 2490 fps | 100% |
| Hodgdon H4895 | <<locked>> | 80% | 34,809 psi | 56% | 2323 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 35,259 psi | 57% | 2359 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 33,040 psi | 53% | 2326 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,208 psi | 40% | 1394 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 33,678 psi | 54% | 2280 fps | 95.1% |
| IMR 3031 | <<locked>> | 80% | 33,431 psi | 54% | 2333 fps | 99.6% |
| IMR 4064 | <<locked>> | 86% | 37,405 psi | 60% | 2346 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 44,222 psi | 71% | 2392 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 35,752 psi | 57% | 2369 fps | 95.5% |
| IMR 8208 XBR | <<locked>> | 80% | 36,637 psi | 59% | 2329 fps | 97% |
| Lovex D073.4 | <<locked>> | 80% | 49,850 psi | 80% | 2559 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 80% | 40,524 psi | 65% | 2408 fps | 98.8% |
| Lovex D073.6 | <<locked>> | 80% | 32,430 psi | 52% | 2287 fps | 97.6% |
| Lovex S060 | <<locked>> | 80% | 35,853 psi | 57% | 2270 fps | 95.3% |
| Lovex S062 | <<locked>> | 82% | 32,300 psi | 52% | 2254 fps | 95.7% |
| Norma 200 | <<locked>> | 80% | 48,501 psi | 78% | 2477 fps | 100% |
| Norma 201 | <<locked>> | 80% | 33,823 psi | 54% | 2274 fps | 96.2% |
| Norma 202 | <<locked>> | 80% | 33,866 psi | 54% | 2290 fps | 98.5% |
| Norma 203B | <<locked>> | 86% | 36,579 psi | 59% | 2379 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 86% | 36,303 psi | 58% | 2385 fps | 95.1% |
| Ramshot TAC | <<locked>> | 86% | 44,628 psi | 72% | 2474 fps | 95% |
| Ramshot Wild Boar | <<locked>> | 80% | 35,360 psi | 57% | 2336 fps | 95.1% |
| Ramshot X-Terminator | <<locked>> | 80% | 39,914 psi | 64% | 2375 fps | 96.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,193 psi | 40% | 1424 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 41,278 psi | 66% | 2418 fps | 99.1% |
| ReloadSwiss RS 50 | <<locked>> | 96% | 49,937 psi | 80% | 2572 fps | 95.2% |
| ReloadSwiss RS 52 | 62.1 gr | 86% | 38,551 psi | 62% | 2477 fps | 95.6% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 30,023 psi | 48% | 2287 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 37,260 psi | 60% | 2326 fps | 99% |
| Rottweil R 902 | <<locked>> | 80% | 32,126 psi | 52% | 2228 fps | 95.6% |
| Rottweil R 903 | <<locked>> | 88% | 33,388 psi | 54% | 2316 fps | 95.4% |
| Shooters World AR Plus | <<locked>> | 80% | 49,850 psi | 80% | 2559 fps | 99.9% |
| Shooters World Match Rifle | <<locked>> | 80% | 32,430 psi | 52% | 2287 fps | 97.6% |
| Shooters World Precision | <<locked>> | 82% | 32,300 psi | 52% | 2254 fps | 95.7% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 43,569 psi | 70% | 2428 fps | 98.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 50,778 psi | 81% | 2238 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 46,064 psi | 74% | 2510 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 37,637 psi | 60% | 2421 fps | 95.7% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 43,787 psi | 70% | 2431 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 42,206 psi | 68% | 2444 fps | 95% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 35,549 psi | 57% | 2329 fps | 95.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 35,694 psi | 57% | 2254 fps | 98.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 28,979 psi | 46% | 2126 fps | 98.1% |
| Somchem S321 | <<locked>> | 80% | 38,914 psi | 62% | 2398 fps | 97.9% |
| Somchem S335 | <<locked>> | 80% | 35,128 psi | 56% | 2260 fps | 99.3% |
| Somchem S341 | <<locked>> | 82% | 36,361 psi | 58% | 2339 fps | 95.3% |
| Somchem S355 | <<locked>> | 88% | 34,679 psi | 56% | 2329 fps | 95.6% |
| Somchem S365 | <<locked>> | 96% | 31,981 psi | 51% | 2346 fps | 95.7% |
| Vihtavuori N120 | <<locked>> | 80% | 50,444 psi | 81% | 2421 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 40,669 psi | 65% | 2333 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 35,752 psi | 57% | 2260 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 80% | 30,734 psi | 49% | 2228 fps | 99.6% |
| Vihtavuori N140 | <<locked>> | 80% | 31,937 psi | 51% | 2234 fps | 98.3% |
| Vihtavuori N150 | <<locked>> | 86% | 30,966 psi | 50% | 2228 fps | 95.8% |
| Vihtavuori N160 | <<locked>> | 98% | 40,741 psi | 65% | 2461 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 36,405 psi | 58% | 2323 fps | 97% |
| Vihtavuori N540 | <<locked>> | 80% | 30,603 psi | 49% | 2218 fps | 97.4% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 36,811 psi | 59% | 2352 fps | 95.9% |
| Winchester 748 | <<locked>> | 80% | 35,114 psi | 56% | 2356 fps | 97.6% |
| Winchester StaBALL Match | <<locked>> | 82% | 34,505 psi | 55% | 2329 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 92 powders for .375 H&H Mag. loaded with the .376 | 256gr | Peregrine VLR-5. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,753 fps; across all powders the maximum-charge window runs from 1,562 fps to 2,753 fps. Accurate 4064 gives the best case fill at 100 %, and 92 of the 92 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 256.0 gr projectile in 0.376" calls for a 1:16.0 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, Hodgdon CFE223, ReloadSwiss RS 52 rank at the top here: for .375 H&H Mag. with the .376 | 256gr | Peregrine VLR-5 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.