Load Specifications
Load data in caliber .375 Fl. Mag. N.E. with .376 | 270gr | Peregrine VLR-4 bullet and 62 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 Ramshot Big Game.
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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Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 82% | 41,785 psi | 89% | 2313 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 40,886 psi | 87% | 2356 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 40,509 psi | 86% | 2362 fps | 99.5% |
| Accurate 4064 | <<locked>> | 90% | 41,118 psi | 87% | 2388 fps | 99.9% |
| Accurate 4350ᴾ | <<locked>> | 100% | 42,177 psi | 89% | 2464 fps | 96.4% |
| ADI AR 2206H | <<locked>> | 84% | 41,017 psi | 87% | 2369 fps | 97.4% |
| ADI AR 2208 | <<locked>> | 90% | 41,989 psi | 89% | 2369 fps | 96.8% |
| ADI Benchmark 8208 | <<locked>> | 82% | 40,654 psi | 86% | 2336 fps | 98.4% |
| Alliant AR-Comp | <<locked>> | 84% | 42,221 psi | 90% | 2382 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 42,612 psi | 90% | 2487 fps | 96.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 40,785 psi | 87% | 2385 fps | 98.2% |
| Alliant Reloder-15 | <<locked>> | 88% | 41,582 psi | 88% | 2398 fps | 97% |
| Alliant Reloder-17 | <<locked>> | 94% | 40,553 psi | 86% | 2457 fps | 97.6% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 39,943 psi | 85% | 2365 fps | 95.8% |
| Bofors RP3 | <<locked>> | 90% | 40,089 psi | 85% | 2385 fps | 98.2% |
| Hodgdon BL-C2 | <<locked>> | 84% | 41,191 psi | 87% | 2395 fps | 99% |
| Hodgdon CFE223 | <<locked>> | 82% | 42,409 psi | 90% | 2464 fps | 97.2% |
| Hodgdon H4895 | <<locked>> | 84% | 41,307 psi | 88% | 2379 fps | 98% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 39,392 psi | 84% | 2375 fps | 97.3% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 42,235 psi | 90% | 2444 fps | 98.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,360 psi | 73% | 1516 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 42,598 psi | 90% | 2385 fps | 98.1% |
| IMR 3031 | <<locked>> | 84% | 40,089 psi | 85% | 2382 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 41,539 psi | 88% | 2352 fps | 97% |
| IMR 4831ᴾ | <<locked>> | 100% | 40,828 psi | 87% | 2421 fps | 96.1% |
| IMR 4895 | <<locked>> | 88% | 42,569 psi | 90% | 2428 fps | 97.8% |
| IMR 8208 XBR | <<locked>> | 82% | 40,654 psi | 86% | 2336 fps | 98.4% |
| Lovex D073.6 | <<locked>> | 86% | 41,843 psi | 89% | 2395 fps | 99.6% |
| Lovex S060 | <<locked>> | 84% | 41,959 psi | 89% | 2320 fps | 97.6% |
| Lovex S062 | <<locked>> | 88% | 40,843 psi | 87% | 2356 fps | 98.5% |
| Norma 201 | <<locked>> | 86% | 42,612 psi | 90% | 2372 fps | 98.8% |
| Norma 202 | <<locked>> | 84% | 40,118 psi | 85% | 2339 fps | 99.7% |
| Norma 203B | <<locked>> | 88% | 40,799 psi | 87% | 2388 fps | 97.4% |
| Ramshot Big Game | <<locked>> | 88% | 40,567 psi | 86% | 2402 fps | 97% |
| Ramshot Wild Boar | <<locked>> | 84% | 42,322 psi | 90% | 2402 fps | 97.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,461 psi | 73% | 1552 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 40,364 psi | 86% | 2438 fps | 96.7% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 40,698 psi | 86% | 2474 fps | 99.5% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 42,554 psi | 90% | 2487 fps | 96% |
| Rottweil R 901 | <<locked>> | 82% | 41,104 psi | 87% | 2326 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 86% | 40,321 psi | 86% | 2326 fps | 98.4% |
| Rottweil R 903 | <<locked>> | 92% | 40,190 psi | 85% | 2382 fps | 97.9% |
| Shooters World Match Rifle | <<locked>> | 86% | 41,843 psi | 89% | 2395 fps | 99.6% |
| Shooters World Precision | <<locked>> | 88% | 40,843 psi | 87% | 2356 fps | 98.5% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 41,916 psi | 89% | 2431 fps | 97.5% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 42,148 psi | 89% | 2388 fps | 97.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 42,090 psi | 89% | 2297 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 41,669 psi | 88% | 2300 fps | 100% |
| Somchem S335 | <<locked>> | 84% | 41,278 psi | 88% | 2297 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 40,727 psi | 86% | 2352 fps | 97.2% |
| Somchem S355 | <<locked>> | 92% | 41,394 psi | 88% | 2388 fps | 97.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 38,014 psi | 81% | 2415 fps | 98.4% |
| Vihtavuori N133 | <<locked>> | 84% | 42,163 psi | 89% | 2297 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 41,829 psi | 89% | 2359 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 40,495 psi | 86% | 2326 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 94% | 42,206 psi | 90% | 2375 fps | 99.1% |
| Vihtavuori N160 | <<locked>> | 98% | 42,496 psi | 90% | 2421 fps | 96.1% |
| Vihtavuori N530 | <<locked>> | 82% | 40,480 psi | 86% | 2329 fps | 98.4% |
| Vihtavuori N540 | <<locked>> | 88% | 41,539 psi | 88% | 2362 fps | 99.8% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 40,857 psi | 87% | 2362 fps | 97.7% |
| Winchester 748 | <<locked>> | 84% | 42,105 psi | 89% | 2415 fps | 99.3% |
| Winchester StaBALL Match | <<locked>> | 86% | 41,263 psi | 88% | 2388 fps | 98% |
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% | 39,262 psi | 83% | 2270 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 31,241 psi | 66% | 2178 fps | 99.9% |
| Accurate 2520 | <<locked>> | 80% | 37,710 psi | 80% | 2310 fps | 99.1% |
| Accurate 4064 | <<locked>> | 80% | 29,631 psi | 63% | 2159 fps | 98.2% |
| Accurate 4350 | <<locked>> | 98% | 39,276 psi | 83% | 2411 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 36,042 psi | 76% | 2270 fps | 96% |
| ADI AR 2208 | <<locked>> | 86% | 37,130 psi | 79% | 2274 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 38,101 psi | 81% | 2287 fps | 97.8% |
| Alliant AR-Comp | <<locked>> | 80% | 36,782 psi | 78% | 2293 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 39,755 psi | 84% | 2431 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 31,517 psi | 67% | 2195 fps | 95.5% |
| Alliant Reloder-15 | <<locked>> | 84% | 36,492 psi | 77% | 2300 fps | 95.5% |
| Alliant Reloder-17 | 64.3 gr | 88% | 33,373 psi | 71% | 2300 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 37,318 psi | 79% | 2313 fps | 95% |
| Bofors RP3 | <<locked>> | 82% | 30,530 psi | 65% | 2188 fps | 95.2% |
| Hodgdon BL-C2 | <<locked>> | 80% | 35,781 psi | 76% | 2293 fps | 97.9% |
| Hodgdon CFE223 | <<locked>> | 80% | 39,523 psi | 84% | 2408 fps | 96.4% |
| Hodgdon H4895 | <<locked>> | 80% | 36,274 psi | 77% | 2280 fps | 96.7% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 34,722 psi | 74% | 2280 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 32,329 psi | 69% | 2241 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,411 psi | 54% | 1352 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 35,056 psi | 74% | 2241 fps | 96.2% |
| IMR 3031 | <<locked>> | 80% | 34,983 psi | 74% | 2287 fps | 99.9% |
| IMR 4064 | <<locked>> | 84% | 36,608 psi | 78% | 2260 fps | 95.6% |
| IMR 4831 | <<locked>> | 98% | 38,218 psi | 81% | 2372 fps | 95.3% |
| IMR 4895 | <<locked>> | 82% | 34,969 psi | 74% | 2280 fps | 95.7% |
| IMR 8208 XBR | <<locked>> | 80% | 38,101 psi | 81% | 2287 fps | 97.8% |
| Lovex D073.6 | <<locked>> | 80% | 34,026 psi | 72% | 2251 fps | 98.4% |
| Lovex S060 | <<locked>> | 80% | 37,086 psi | 79% | 2228 fps | 96.3% |
| Lovex S062 | <<locked>> | 80% | 31,676 psi | 67% | 2169 fps | 96% |
| Norma 201 | <<locked>> | 80% | 35,201 psi | 75% | 2231 fps | 97.2% |
| Norma 202 | <<locked>> | 80% | 35,288 psi | 75% | 2247 fps | 99.1% |
| Norma 203B | <<locked>> | 82% | 33,547 psi | 71% | 2241 fps | 95.1% |
| Ramshot Big Game | 62.3 gr | 84% | 35,418 psi | 75% | 2297 fps | 95.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 36,854 psi | 78% | 2297 fps | 96.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,440 psi | 54% | 1381 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 35,317 psi | 75% | 2333 fps | 95% |
| ReloadSwiss RS 60 | 59.9 gr | 82% | 29,225 psi | 62% | 2201 fps | 95.8% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 39,653 psi | 84% | 2431 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 38,711 psi | 82% | 2280 fps | 99.4% |
| Rottweil R 902 | <<locked>> | 80% | 33,417 psi | 71% | 2188 fps | 96.6% |
| Rottweil R 903 | <<locked>> | 86% | 32,779 psi | 70% | 2234 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 34,026 psi | 72% | 2251 fps | 98.4% |
| Shooters World Precision | <<locked>> | 80% | 31,676 psi | 67% | 2169 fps | 96% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 34,476 psi | 73% | 2283 fps | 95.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 34,621 psi | 73% | 2241 fps | 95.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 37,159 psi | 79% | 2211 fps | 99.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,298 psi | 64% | 2090 fps | 98.8% |
| Somchem S335 | <<locked>> | 80% | 36,506 psi | 77% | 2215 fps | 99.7% |
| Somchem S341 | <<locked>> | 80% | 35,418 psi | 75% | 2251 fps | 95.6% |
| Somchem S355 | <<locked>> | 84% | 31,966 psi | 68% | 2198 fps | 95.1% |
| Somchem S365 | <<locked>> | 92% | 29,472 psi | 63% | 2215 fps | 95.1% |
| Vihtavuori N133 | <<locked>> | 80% | 37,275 psi | 79% | 2215 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 32,329 psi | 69% | 2188 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 80% | 33,344 psi | 71% | 2192 fps | 99% |
| Vihtavuori N150 | <<locked>> | 82% | 28,471 psi | 60% | 2100 fps | 95.3% |
| Vihtavuori N160 | <<locked>> | 96% | 39,813 psi | 84% | 2372 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 37,898 psi | 80% | 2280 fps | 97.9% |
| Vihtavuori N540 | <<locked>> | 80% | 31,923 psi | 68% | 2175 fps | 98.2% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 33,518 psi | 71% | 2215 fps | 95.2% |
| Winchester 748 | <<locked>> | 80% | 36,695 psi | 78% | 2316 fps | 98.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 33,620 psi | 71% | 2238 fps | 95.8% |
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 62 powders for .375 Fl. Mag. N.E. loaded with the .376 | 270gr | Peregrine VLR-4. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,487 fps; across all powders the maximum-charge window runs from 1,516 fps to 2,487 fps. Accurate 4350 gives the best case fill at 100 %, and 62 of the 62 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (325 MPa), the top charges use 73–90 %, leaving at least 10 % headroom. The 270.0 gr projectile in 0.376" calls for a 1:15.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Hodgdon Hybrid 100V, Hodgdon TrailBoss 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, Ramshot Big Game rank at the top here: for .375 Fl. Mag. N.E. with the .376 | 270gr | 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.