Load Specifications
Load data in caliber .375 Fl. Mag. N.E. with .376 | 250gr | Peregrine VLR-4 bullet and 57 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Reloder-17 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: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 82% | 40,393 psi | 86% | 2395 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 41,989 psi | 89% | 2480 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 41,829 psi | 89% | 2487 fps | 99.3% |
| Accurate 4064 | <<locked>> | 92% | 42,076 psi | 89% | 2510 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 86% | 42,322 psi | 90% | 2493 fps | 97% |
| ADI Benchmark 8208 | <<locked>> | 84% | 41,901 psi | 89% | 2457 fps | 98.1% |
| Alliant AR-Comp | <<locked>> | 84% | 40,611 psi | 86% | 2467 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 42,003 psi | 89% | 2507 fps | 97.9% |
| Alliant Reloder-15 | <<locked>> | 88% | 40,103 psi | 85% | 2470 fps | 95.8% |
| Alliant Reloder-17 | <<locked>> | 96% | 41,945 psi | 89% | 2582 fps | 97.2% |
| Bofors RP3 | <<locked>> | 92% | 41,365 psi | 88% | 2510 fps | 97.8% |
| Hodgdon Benchmark | <<locked>> | 82% | 41,611 psi | 88% | 2411 fps | 98.5% |
| Hodgdon BL-C2 | <<locked>> | 86% | 42,612 psi | 90% | 2523 fps | 98.7% |
| Hodgdon CFE223 | <<locked>> | 82% | 40,973 psi | 87% | 2539 fps | 96% |
| Hodgdon H4895 | <<locked>> | 86% | 42,627 psi | 90% | 2503 fps | 97.7% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 37,956 psi | 81% | 2441 fps | 96% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 40,712 psi | 86% | 2516 fps | 97.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,055 psi | 72% | 1585 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 41,278 psi | 88% | 2464 fps | 97.2% |
| IMR 3031 | <<locked>> | 86% | 41,307 psi | 88% | 2510 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 40,074 psi | 85% | 2425 fps | 95.8% |
| IMR 4895 | <<locked>> | 88% | 40,988 psi | 87% | 2500 fps | 96.8% |
| IMR 8208 XBR | <<locked>> | 84% | 41,901 psi | 89% | 2457 fps | 98.1% |
| Lovex D073.6 | <<locked>> | 86% | 40,161 psi | 85% | 2467 fps | 99.1% |
| Lovex S060 | <<locked>> | 84% | 40,727 psi | 86% | 2395 fps | 96.6% |
| Lovex S062 | <<locked>> | 90% | 42,018 psi | 89% | 2477 fps | 98.2% |
| Norma 201 | <<locked>> | 86% | 41,147 psi | 87% | 2448 fps | 98% |
| Norma 202 | <<locked>> | 86% | 41,481 psi | 88% | 2467 fps | 99.6% |
| Norma 203B | <<locked>> | 90% | 41,872 psi | 89% | 2510 fps | 97% |
| Ramshot Big Game | <<locked>> | 90% | 41,771 psi | 89% | 2523 fps | 96.6% |
| Ramshot Wild Boar | <<locked>> | 84% | 40,930 psi | 87% | 2474 fps | 96.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,287 psi | 73% | 1624 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 41,771 psi | 89% | 2566 fps | 96.3% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 42,003 psi | 89% | 2598 fps | 99.3% |
| Rottweil R 901 | <<locked>> | 84% | 42,322 psi | 90% | 2448 fps | 99.6% |
| Rottweil R 902 | <<locked>> | 88% | 41,495 psi | 88% | 2448 fps | 98.1% |
| Rottweil R 903 | <<locked>> | 94% | 41,263 psi | 88% | 2500 fps | 97.5% |
| Shooters World Match Rifle | <<locked>> | 86% | 40,161 psi | 85% | 2467 fps | 99.1% |
| Shooters World Precision | <<locked>> | 90% | 42,018 psi | 89% | 2477 fps | 98.2% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 40,524 psi | 86% | 2503 fps | 96.3% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 40,843 psi | 87% | 2464 fps | 96.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 40,756 psi | 86% | 2375 fps | 99.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 40,205 psi | 85% | 2379 fps | 99.8% |
| Somchem S321 | <<locked>> | 82% | 42,119 psi | 89% | 2484 fps | 98.4% |
| Somchem S335 | <<locked>> | 86% | 42,569 psi | 90% | 2421 fps | 99.9% |
| Somchem S341 | <<locked>> | 86% | 42,250 psi | 90% | 2477 fps | 96.8% |
| Somchem S355 | <<locked>> | 94% | 42,395 psi | 90% | 2507 fps | 97.5% |
| Somchem S365ᴾ | <<locked>> | 100% | 36,608 psi | 78% | 2477 fps | 97.2% |
| Vihtavuori N133 | <<locked>> | 84% | 40,770 psi | 86% | 2379 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 40,408 psi | 86% | 2441 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 41,742 psi | 89% | 2451 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 94% | 40,799 psi | 87% | 2451 fps | 98.4% |
| Vihtavuori N530 | <<locked>> | 84% | 41,901 psi | 89% | 2457 fps | 98.2% |
| Vihtavuori N540 | <<locked>> | 88% | 40,176 psi | 85% | 2441 fps | 99.4% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 42,322 psi | 90% | 2484 fps | 97.3% |
| Winchester 748 | <<locked>> | 84% | 40,495 psi | 86% | 2490 fps | 98.6% |
| Winchester StaBALL Match | <<locked>> | 88% | 42,612 psi | 90% | 2513 fps | 97.7% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 37,971 psi | 81% | 2352 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 29,936 psi | 64% | 2244 fps | 99.5% |
| Accurate 2520 | <<locked>> | 80% | 36,361 psi | 77% | 2385 fps | 98.4% |
| Accurate 4064 | <<locked>> | 80% | 28,355 psi | 60% | 2221 fps | 97.1% |
| ADI AR 2206H | <<locked>> | 82% | 37,159 psi | 79% | 2388 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 36,956 psi | 78% | 2362 fps | 96.8% |
| Alliant AR-Comp | <<locked>> | 80% | 35,346 psi | 75% | 2372 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 34,592 psi | 73% | 2359 fps | 95.8% |
| Alliant Reloder-15 | <<locked>> | 86% | 37,623 psi | 80% | 2421 fps | 95% |
| Alliant Reloder-17 | 69.3 gr | 92% | 36,738 psi | 78% | 2470 fps | 95.4% |
| Bofors RP3 | <<locked>> | 86% | 33,605 psi | 71% | 2352 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 39,117 psi | 83% | 2365 fps | 98% |
| Hodgdon BL-C2 | <<locked>> | 80% | 34,548 psi | 73% | 2362 fps | 96.8% |
| Hodgdon CFE223 | <<locked>> | 80% | 38,130 psi | 81% | 2477 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 35,128 psi | 75% | 2352 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 35,665 psi | 76% | 2392 fps | 95.2% |
| Hodgdon LEVERevolution | 61.5 gr | 82% | 33,344 psi | 71% | 2359 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,251 psi | 54% | 1417 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 36,201 psi | 77% | 2359 fps | 95.8% |
| IMR 3031 | <<locked>> | 80% | 33,634 psi | 71% | 2359 fps | 99.5% |
| IMR 4064 | <<locked>> | 86% | 37,579 psi | 80% | 2375 fps | 95.1% |
| IMR 4895 | <<locked>> | 84% | 35,955 psi | 76% | 2398 fps | 95.2% |
| IMR 8208 XBR | <<locked>> | 80% | 36,956 psi | 78% | 2362 fps | 96.8% |
| Lovex D073.6 | <<locked>> | 80% | 32,663 psi | 69% | 2316 fps | 97.4% |
| Lovex S060 | <<locked>> | 80% | 35,984 psi | 76% | 2297 fps | 95.1% |
| Lovex S062 | <<locked>> | 82% | 32,590 psi | 69% | 2283 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 33,982 psi | 72% | 2300 fps | 96% |
| Norma 202 | <<locked>> | 80% | 34,011 psi | 72% | 2320 fps | 98.4% |
| Norma 203B | <<locked>> | 86% | 36,912 psi | 78% | 2408 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 88% | 39,073 psi | 83% | 2470 fps | 95.8% |
| Ramshot Wild Boar | <<locked>> | 82% | 38,116 psi | 81% | 2418 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,222 psi | 54% | 1447 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 38,972 psi | 83% | 2510 fps | 95.4% |
| ReloadSwiss RS 60 | 63.3 gr | 84% | 30,197 psi | 64% | 2313 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 37,507 psi | 80% | 2359 fps | 98.9% |
| Rottweil R 902 | <<locked>> | 80% | 32,314 psi | 69% | 2254 fps | 95.3% |
| Rottweil R 903 | <<locked>> | 88% | 33,678 psi | 71% | 2346 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 32,663 psi | 69% | 2316 fps | 97.4% |
| Shooters World Precision | <<locked>> | 82% | 32,590 psi | 69% | 2283 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 37,913 psi | 80% | 2451 fps | 95.5% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 38,218 psi | 81% | 2411 fps | 95.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 35,882 psi | 76% | 2283 fps | 98.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 29,196 psi | 62% | 2152 fps | 97.9% |
| Somchem S321 | <<locked>> | 80% | 39,189 psi | 83% | 2428 fps | 97.8% |
| Somchem S335 | <<locked>> | 80% | 35,302 psi | 75% | 2287 fps | 99.2% |
| Somchem S341 | <<locked>> | 82% | 36,753 psi | 78% | 2372 fps | 95.2% |
| Somchem S355 | <<locked>> | 88% | 35,012 psi | 74% | 2359 fps | 95.4% |
| Somchem S365 | <<locked>> | 96% | 32,300 psi | 69% | 2375 fps | 95.5% |
| Vihtavuori N133 | <<locked>> | 80% | 35,955 psi | 76% | 2290 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 80% | 30,995 psi | 66% | 2257 fps | 99.6% |
| Vihtavuori N140 | <<locked>> | 80% | 32,111 psi | 68% | 2260 fps | 98.2% |
| Vihtavuori N150 | <<locked>> | 86% | 31,285 psi | 66% | 2257 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 36,651 psi | 78% | 2356 fps | 96.9% |
| Vihtavuori N540 | <<locked>> | 80% | 30,821 psi | 65% | 2244 fps | 97.3% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 37,043 psi | 79% | 2379 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 35,302 psi | 75% | 2385 fps | 97.4% |
| Winchester StaBALL Match | <<locked>> | 82% | 34,795 psi | 74% | 2359 fps | 95.4% |
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 57 powders for .375 Fl. Mag. N.E. loaded with the .376 | 250gr | Peregrine VLR-4. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,598 fps; across all powders the maximum-charge window runs from 1,585 fps to 2,598 fps. Hodgdon Hybrid 100V gives the best case fill at 100 %, and 57 of the 57 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (325 MPa), the top charges use 72–90 %, 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. Hodgdon Hybrid 100V, Hodgdon TrailBoss, ReloadSwiss RS 14 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. ReloadSwiss RS 60, Alliant Reloder-17, Hodgdon LEVERevolution rank at the top here: for .375 Fl. Mag. N.E. 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.