Load Specifications
Load data in caliber .375 H&H Mag. with .376 | 250gr | Peregrine VLR-4 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.
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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% | 53,998 psi | 87% | 2595 fps | 100% |
| Accurate 2200 | <<locked>> | 84% | 54,998 psi | 88% | 2684 fps | 98.5% |
| Accurate 2230 | <<locked>> | 84% | 55,579 psi | 89% | 2694 fps | 98.8% |
| Accurate 2460 | <<locked>> | 90% | 55,985 psi | 90% | 2661 fps | 100% |
| Accurate 2495 | <<locked>> | 98% | 53,330 psi | 86% | 2644 fps | 100% |
| Accurate 2520 | <<locked>> | 92% | 53,679 psi | 86% | 2671 fps | 100% |
| Accurate 4064ᴾ | <<locked>> | 100% | 53,026 psi | 85% | 2677 fps | 100% |
| Accurate LT-30 | <<locked>> | 86% | 55,201 psi | 89% | 2556 fps | 100% |
| Accurate LT-32 | <<locked>> | 86% | 55,651 psi | 89% | 2575 fps | 100% |
| ADI AR 2206H | <<locked>> | 94% | 53,055 psi | 85% | 2671 fps | 98.9% |
| ADI AR 2207 | <<locked>> | 84% | 56,072 psi | 90% | 2569 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 53,954 psi | 87% | 2661 fps | 98.4% |
| ADI AR 2219 | <<locked>> | 86% | 54,897 psi | 88% | 2664 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 94% | 56,101 psi | 90% | 2680 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 94% | 54,955 psi | 88% | 2664 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 88% | 53,882 psi | 86% | 2733 fps | 99.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 98% | 56,362 psi | 90% | 2822 fps | 98.7% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 52,475 psi | 84% | 2677 fps | 99.4% |
| Alliant Reloder-10x | <<locked>> | 88% | 54,128 psi | 87% | 2605 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 98% | 53,751 psi | 86% | 2700 fps | 98.6% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 46,630 psi | 75% | 2671 fps | 98.3% |
| Alliant Reloder-7 | <<locked>> | 82% | 53,795 psi | 86% | 2546 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 54,056 psi | 87% | 2552 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 96% | 56,405 psi | 90% | 2733 fps | 98.5% |
| Bofors RP3ᴾ | <<locked>> | 100% | 52,504 psi | 84% | 2690 fps | 99.4% |
| Hodgdon Benchmark | <<locked>> | 92% | 55,143 psi | 88% | 2625 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 94% | 54,476 psi | 87% | 2710 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 90% | 52,750 psi | 85% | 2743 fps | 98.5% |
| Hodgdon H322 | <<locked>> | 88% | 53,359 psi | 86% | 2641 fps | 100% |
| Hodgdon H335 | <<locked>> | 88% | 54,549 psi | 87% | 2667 fps | 100% |
| Hodgdon H380ᴾ | <<locked>> | 100% | 54,752 psi | 88% | 2700 fps | 97.6% |
| Hodgdon H4198 | <<locked>> | 82% | 53,853 psi | 86% | 2556 fps | 100% |
| Hodgdon H4895 | <<locked>> | 94% | 53,505 psi | 86% | 2684 fps | 99.3% |
| Hodgdon LEVERevolution | <<locked>> | 98% | 55,172 psi | 88% | 2756 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,939 psi | 54% | 1578 fps | 100% |
| Hodgdon VARGET | <<locked>> | 96% | 55,317 psi | 89% | 2687 fps | 99.4% |
| IMR 3031 | <<locked>> | 96% | 55,608 psi | 89% | 2720 fps | 100% |
| IMR 4064 | <<locked>> | 98% | 53,563 psi | 86% | 2648 fps | 98.6% |
| IMR 4198 | <<locked>> | 88% | 55,027 psi | 88% | 2572 fps | 100% |
| IMR 4895 | <<locked>> | 98% | 55,027 psi | 88% | 2733 fps | 99.2% |
| IMR 8208 XBR | <<locked>> | 94% | 56,101 psi | 90% | 2680 fps | 99.8% |
| Lovex D073.4 | <<locked>> | 84% | 56,318 psi | 90% | 2677 fps | 100% |
| Lovex D073.5 | <<locked>> | 90% | 56,231 psi | 90% | 2674 fps | 100% |
| Lovex D073.6 | <<locked>> | 96% | 54,940 psi | 88% | 2697 fps | 100% |
| Lovex S060 | <<locked>> | 94% | 53,911 psi | 86% | 2612 fps | 98.9% |
| Lovex S062ᴾ | <<locked>> | 100% | 55,869 psi | 90% | 2694 fps | 99.8% |
| Norma 200 | <<locked>> | 84% | 53,925 psi | 86% | 2579 fps | 100% |
| Norma 201 | <<locked>> | 96% | 54,868 psi | 88% | 2667 fps | 99.7% |
| Norma 202 | <<locked>> | 96% | 55,419 psi | 89% | 2677 fps | 100% |
| Norma 203Bᴾ | <<locked>> | 100% | 56,246 psi | 90% | 2736 fps | 99.2% |
| Ramshot Big Game | <<locked>> | 98% | 53,374 psi | 86% | 2713 fps | 98.8% |
| Ramshot TAC | <<locked>> | 92% | 53,374 psi | 86% | 2641 fps | 96.7% |
| Ramshot Wild Boar | <<locked>> | 94% | 55,709 psi | 89% | 2713 fps | 99.1% |
| Ramshot X-Terminator | <<locked>> | 90% | 54,230 psi | 87% | 2638 fps | 98.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,968 psi | 54% | 1614 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 56,028 psi | 90% | 2674 fps | 100% |
| ReloadSwiss RS 50ᴾ | <<locked>> | 100% | 55,840 psi | 90% | 2684 fps | 96.1% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 53,301 psi | 85% | 2762 fps | 98.6% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 49,922 psi | 80% | 2740 fps | 100% |
| Rottweil R 901 | <<locked>> | 94% | 55,811 psi | 89% | 2654 fps | 100% |
| Rottweil R 902 | <<locked>> | 98% | 55,114 psi | 88% | 2661 fps | 99.7% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 48,689 psi | 78% | 2625 fps | 98.8% |
| Shooters World AR Plus | <<locked>> | 84% | 56,318 psi | 90% | 2677 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 96% | 54,940 psi | 88% | 2697 fps | 100% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 55,869 psi | 90% | 2694 fps | 99.8% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 52,692 psi | 84% | 2595 fps | 99.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 55,651 psi | 89% | 2323 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 55,303 psi | 89% | 2674 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 51,256 psi | 82% | 2690 fps | 98.6% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 55,288 psi | 89% | 2625 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 94% | 54,665 psi | 88% | 2667 fps | 97.4% |
| SNPE Vectan SP 9 | <<locked>> | 96% | 54,998 psi | 88% | 2694 fps | 99.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 54,418 psi | 87% | 2582 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 53,679 psi | 86% | 2575 fps | 100% |
| Somchem S321 | <<locked>> | 90% | 53,853 psi | 86% | 2671 fps | 99.7% |
| Somchem S335 | <<locked>> | 96% | 56,333 psi | 90% | 2621 fps | 100% |
| Somchem S341 | <<locked>> | 94% | 54,012 psi | 87% | 2664 fps | 98.9% |
| Somchem S355ᴾ | <<locked>> | 100% | 49,966 psi | 80% | 2631 fps | 98.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 35,549 psi | 57% | 2457 fps | 96.8% |
| Vihtavuori N120 | <<locked>> | 84% | 55,970 psi | 90% | 2520 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 54,418 psi | 87% | 2559 fps | 100% |
| Vihtavuori N133 | <<locked>> | 94% | 54,157 psi | 87% | 2572 fps | 100% |
| Vihtavuori N135 | <<locked>> | 98% | 53,998 psi | 87% | 2641 fps | 100% |
| Vihtavuori N140 | <<locked>> | 98% | 55,825 psi | 90% | 2654 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 48,153 psi | 77% | 2572 fps | 99.4% |
| Vihtavuori N530 | <<locked>> | 92% | 53,258 psi | 85% | 2638 fps | 99.6% |
| Vihtavuori N540 | <<locked>> | 98% | 54,070 psi | 87% | 2654 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 44,048 psi | 71% | 2513 fps | 97.6% |
| Winchester 748 | <<locked>> | 94% | 55,622 psi | 89% | 2730 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 96% | 54,302 psi | 87% | 2700 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% | 36,811 psi | 59% | 2333 fps | 100% |
| Accurate 2200 | <<locked>> | 80% | 47,979 psi | 77% | 2575 fps | 97.3% |
| Accurate 2230 | <<locked>> | 80% | 48,167 psi | 77% | 2585 fps | 97.7% |
| Accurate 2460 | <<locked>> | 80% | 39,856 psi | 64% | 2418 fps | 99.3% |
| Accurate 2495 | <<locked>> | 80% | 28,979 psi | 46% | 2228 fps | 99.3% |
| Accurate 2520 | <<locked>> | 80% | 35,172 psi | 56% | 2362 fps | 98.1% |
| Accurate 4064 | <<locked>> | 80% | 27,485 psi | 44% | 2205 fps | 96.7% |
| Accurate LT-30 | <<locked>> | 80% | 45,818 psi | 73% | 2421 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 46,180 psi | 74% | 2438 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 82% | 36,187 psi | 58% | 2372 fps | 95.1% |
| ADI AR 2207 | <<locked>> | 80% | 49,603 psi | 80% | 2487 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 39,624 psi | 64% | 2421 fps | 95.3% |
| ADI AR 2219 | <<locked>> | 80% | 44,802 psi | 72% | 2516 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 35,926 psi | 58% | 2343 fps | 96.5% |
| Alliant AR-Comp | <<locked>> | 80% | 34,301 psi | 55% | 2359 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 41,220 psi | 66% | 2520 fps | 97.4% |
| Alliant Power Pro 2000-MR | 67.1 gr | 90% | 42,830 psi | 69% | 2589 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 33,475 psi | 54% | 2339 fps | 95.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 42,192 psi | 68% | 2434 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 38,957 psi | 62% | 2451 fps | 95.4% |
| Alliant Reloder-17 | <<locked>> | 94% | 38,159 psi | 61% | 2503 fps | 95.9% |
| Alliant Reloder-7 | <<locked>> | 80% | 50,691 psi | 81% | 2507 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 44,382 psi | 71% | 2418 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 40,292 psi | 65% | 2470 fps | 95% |
| Bofors RP3 | <<locked>> | 86% | 32,489 psi | 52% | 2333 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 38,130 psi | 61% | 2346 fps | 97.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 33,446 psi | 54% | 2343 fps | 96.4% |
| Hodgdon CFE223 | 62.6 gr | 82% | 39,885 psi | 64% | 2516 fps | 95.6% |
| Hodgdon H322 | <<locked>> | 80% | 40,915 psi | 66% | 2451 fps | 99.9% |
| Hodgdon H335 | <<locked>> | 80% | 41,423 psi | 66% | 2467 fps | 99.6% |
| Hodgdon H380 | <<locked>> | 94% | 44,715 psi | 72% | 2546 fps | 95.5% |
| Hodgdon H4198 | <<locked>> | 80% | 50,473 psi | 81% | 2510 fps | 100% |
| Hodgdon H4895 | <<locked>> | 80% | 34,098 psi | 55% | 2333 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 34,664 psi | 56% | 2392 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,106 psi | 40% | 1411 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 35,259 psi | 57% | 2343 fps | 95.4% |
| IMR 3031 | <<locked>> | 80% | 32,677 psi | 52% | 2343 fps | 99.4% |
| IMR 4064 | <<locked>> | 88% | 39,117 psi | 63% | 2408 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 43,453 psi | 70% | 2408 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 37,333 psi | 60% | 2431 fps | 95.7% |
| IMR 8208 XBR | <<locked>> | 80% | 35,926 psi | 58% | 2343 fps | 96.5% |
| Lovex D073.4 | <<locked>> | 80% | 48,849 psi | 78% | 2572 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 80% | 39,668 psi | 64% | 2418 fps | 98.4% |
| Lovex D073.6 | <<locked>> | 80% | 31,662 psi | 51% | 2297 fps | 97% |
| Lovex S060 | <<locked>> | 82% | 37,376 psi | 60% | 2326 fps | 95.5% |
| Lovex S062 | <<locked>> | 82% | 31,618 psi | 51% | 2264 fps | 95.1% |
| Norma 200 | <<locked>> | 80% | 47,587 psi | 76% | 2493 fps | 100% |
| Norma 201 | <<locked>> | 80% | 33,156 psi | 53% | 2283 fps | 95.7% |
| Norma 202 | <<locked>> | 80% | 33,156 psi | 53% | 2303 fps | 98.1% |
| Norma 203B | <<locked>> | 86% | 35,795 psi | 57% | 2388 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 88% | 38,029 psi | 61% | 2448 fps | 95.4% |
| Ramshot TAC | <<locked>> | 88% | 46,746 psi | 75% | 2536 fps | 95.2% |
| Ramshot Wild Boar | <<locked>> | 82% | 37,072 psi | 59% | 2398 fps | 95.3% |
| Ramshot X-Terminator | <<locked>> | 80% | 39,189 psi | 63% | 2385 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,063 psi | 40% | 1440 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 40,495 psi | 65% | 2431 fps | 98.8% |
| ReloadSwiss RS 50 | <<locked>> | 98% | 52,199 psi | 84% | 2631 fps | 95.4% |
| ReloadSwiss RS 52 | 63.6 gr | 88% | 40,437 psi | 65% | 2543 fps | 95.8% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 31,314 psi | 50% | 2346 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 36,535 psi | 59% | 2339 fps | 98.7% |
| Rottweil R 902 | <<locked>> | 80% | 31,473 psi | 50% | 2238 fps | 95% |
| Rottweil R 903 | <<locked>> | 90% | 34,867 psi | 56% | 2375 fps | 95.6% |
| Shooters World AR Plus | <<locked>> | 80% | 48,849 psi | 78% | 2572 fps | 99.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 31,662 psi | 51% | 2297 fps | 97% |
| Shooters World Precision | <<locked>> | 82% | 31,618 psi | 51% | 2264 fps | 95.1% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 42,757 psi | 69% | 2441 fps | 97.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 50,125 psi | 80% | 2260 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 45,165 psi | 72% | 2526 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 36,854 psi | 59% | 2431 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 42,960 psi | 69% | 2448 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 44,280 psi | 71% | 2507 fps | 95.2% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 37,159 psi | 60% | 2392 fps | 95.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 35,041 psi | 56% | 2267 fps | 98.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 28,398 psi | 46% | 2136 fps | 97.6% |
| Somchem S321 | <<locked>> | 80% | 38,116 psi | 61% | 2411 fps | 97.5% |
| Somchem S335 | <<locked>> | 80% | 34,461 psi | 55% | 2270 fps | 99% |
| Somchem S341 | <<locked>> | 84% | 38,305 psi | 61% | 2405 fps | 95.6% |
| Somchem S355 | <<locked>> | 90% | 36,245 psi | 58% | 2388 fps | 95.8% |
| Somchem S365 | <<locked>> | 98% | 33,330 psi | 53% | 2402 fps | 95.9% |
| Vihtavuori N120 | <<locked>> | 80% | 49,588 psi | 80% | 2441 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 39,943 psi | 64% | 2349 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 35,070 psi | 56% | 2274 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 80% | 30,008 psi | 48% | 2241 fps | 99.4% |
| Vihtavuori N140 | <<locked>> | 80% | 31,256 psi | 50% | 2244 fps | 97.9% |
| Vihtavuori N150 | <<locked>> | 86% | 30,284 psi | 49% | 2238 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 35,679 psi | 57% | 2333 fps | 96.5% |
| Vihtavuori N540 | <<locked>> | 80% | 29,950 psi | 48% | 2228 fps | 96.9% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 36,100 psi | 58% | 2359 fps | 95.2% |
| Winchester 748 | <<locked>> | 80% | 34,374 psi | 55% | 2365 fps | 97% |
| Winchester StaBALL Match | <<locked>> | 84% | 36,201 psi | 58% | 2392 fps | 95.9% |
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 .376 | 250gr | Peregrine VLR-4. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,822 fps; across all powders the maximum-charge window runs from 1,578 fps to 2,822 fps. Accurate 4064 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 0.376" 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, ReloadSwiss RS 52, Hodgdon CFE223 rank at the top here: for .375 H&H Mag. with the .376 | 250gr | Peregrine VLR-4 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.