Load Specifications
Load data in caliber .375 Fl. Mag. N.E. with .375 | 200gr | Impala LWHV LS bullet and 28 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are IMR 3031, Lovex D073.6 and Shooters World Match Rifle.
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>> | 84% | 41,771 psi | 89% | 2677 fps | 99.7% |
| Accurate 2495 | <<locked>> | 90% | 41,408 psi | 88% | 2726 fps | 99.8% |
| Accurate 2520 | <<locked>> | 84% | 40,132 psi | 85% | 2707 fps | 97.1% |
| Accurate 4064 | <<locked>> | 92% | 41,017 psi | 87% | 2743 fps | 98.4% |
| Alliant AR-Comp | <<locked>> | 86% | 40,741 psi | 86% | 2746 fps | 100% |
| Hodgdon Benchmark | <<locked>> | 82% | 40,205 psi | 85% | 2625 fps | 95.8% |
| Hodgdon BL-C2 | <<locked>> | 86% | 40,364 psi | 86% | 2730 fps | 95.9% |
| Hodgdon H322 | <<locked>> | 82% | 42,656 psi | 90% | 2746 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,272 psi | 73% | 1781 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 41,452 psi | 88% | 2782 fps | 99.4% |
| Lovex D073.5 | <<locked>> | 82% | 42,235 psi | 90% | 2707 fps | 96.7% |
| Lovex D073.6 | <<locked>> | 88% | 41,191 psi | 87% | 2740 fps | 97.3% |
| Norma 202 | <<locked>> | 88% | 42,076 psi | 89% | 2733 fps | 98.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,374 psi | 73% | 1821 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 42,337 psi | 90% | 2717 fps | 97.2% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 42,598 psi | 90% | 2838 fps | 96.8% |
| Rottweil R 901 | <<locked>> | 84% | 42,061 psi | 89% | 2687 fps | 97.9% |
| Shooters World Match Rifle | <<locked>> | 88% | 41,191 psi | 87% | 2740 fps | 97.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 41,930 psi | 89% | 2641 fps | 98% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 40,727 psi | 86% | 2635 fps | 98.7% |
| Somchem S335 | <<locked>> | 86% | 41,292 psi | 88% | 2648 fps | 98.6% |
| Vihtavuori N130 | <<locked>> | 82% | 42,003 psi | 89% | 2641 fps | 99.9% |
| Vihtavuori N133 | <<locked>> | 86% | 41,481 psi | 88% | 2648 fps | 99.6% |
| Vihtavuori N135 | <<locked>> | 90% | 40,770 psi | 86% | 2713 fps | 99.7% |
| Vihtavuori N140 | <<locked>> | 90% | 42,177 psi | 89% | 2713 fps | 98.5% |
| Vihtavuori N150 | <<locked>> | 96% | 41,089 psi | 87% | 2700 fps | 96% |
| Vihtavuori N540 | <<locked>> | 90% | 40,828 psi | 87% | 2700 fps | 97.7% |
| Winchester 748 | <<locked>> | 86% | 41,104 psi | 87% | 2749 fps | 96.4% |
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% | 37,217 psi | 79% | 2582 fps | 99.1% |
| Accurate 2495 | <<locked>> | 80% | 30,734 psi | 65% | 2484 fps | 98% |
| Accurate 2520 | <<locked>> | 80% | 35,273 psi | 75% | 2595 fps | 95.6% |
| Accurate 4064 | <<locked>> | 82% | 30,705 psi | 65% | 2497 fps | 95.2% |
| Alliant AR-Comp | <<locked>> | 80% | 33,924 psi | 72% | 2598 fps | 99.9% |
| Hodgdon Benchmark | <<locked>> | 80% | 37,913 psi | 80% | 2572 fps | 95.1% |
| Hodgdon BL-C2 | <<locked>> | 84% | 38,014 psi | 81% | 2677 fps | 95.1% |
| Hodgdon H322 | <<locked>> | 80% | 40,045 psi | 85% | 2690 fps | 98.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,585 psi | 54% | 1591 fps | 100% |
| IMR 3031 | 57.2 gr | 80% | 32,489 psi | 69% | 2569 fps | 97.4% |
| Lovex D073.5 | <<locked>> | 80% | 39,813 psi | 84% | 2657 fps | 96.1% |
| Lovex D073.6 | 62.6 gr | 82% | 34,084 psi | 72% | 2579 fps | 95.1% |
| Norma 202 | <<locked>> | 80% | 33,243 psi | 71% | 2533 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,614 psi | 54% | 1627 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 39,827 psi | 84% | 2661 fps | 96.6% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 40,045 psi | 85% | 2779 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 37,681 psi | 80% | 2589 fps | 96.8% |
| Shooters World Match Rifle | 62.6 gr | 82% | 34,084 psi | 72% | 2579 fps | 95.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 35,215 psi | 75% | 2493 fps | 96.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 28,819 psi | 61% | 2352 fps | 95% |
| Somchem S335 | <<locked>> | 80% | 34,896 psi | 74% | 2507 fps | 97.1% |
| Vihtavuori N130 | <<locked>> | 80% | 39,711 psi | 84% | 2595 fps | 99.8% |
| Vihtavuori N133 | <<locked>> | 80% | 34,838 psi | 74% | 2507 fps | 98.6% |
| Vihtavuori N135 | <<locked>> | 80% | 30,313 psi | 64% | 2470 fps | 97.7% |
| Vihtavuori N140 | <<locked>> | 80% | 31,386 psi | 67% | 2464 fps | 95.4% |
| Vihtavuori N150 | <<locked>> | 94% | 38,841 psi | 82% | 2651 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 84% | 34,142 psi | 72% | 2549 fps | 95.8% |
| Winchester 748 | <<locked>> | 84% | 38,595 psi | 82% | 2694 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 28 powders for .375 Fl. Mag. N.E. loaded with the .375 | 200gr | Impala LWHV LS. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,838 fps; across all powders the maximum-charge window runs from 1,781 fps to 2,838 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 28 of the 28 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 200.0 gr projectile in 0.375" calls for a 1:16.0 twist; slower twists will usually not stabilise this weight. 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. IMR 3031, Lovex D073.6, Shooters World Match Rifle rank at the top here: for .375 Fl. Mag. N.E. with the .375 | 200gr | Impala LWHV LS 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.