Load Specifications
Load data in caliber .375 Fl. Mag. N.E. with .374 | 235gr | Rhino Penetrator bullet and 55 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 Bofors RP3.
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% | 42,047 psi | 89% | 2513 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 41,727 psi | 89% | 2562 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 40,886 psi | 87% | 2559 fps | 99% |
| Accurate 4064 | <<locked>> | 90% | 41,771 psi | 89% | 2592 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 84% | 41,205 psi | 87% | 2559 fps | 96.4% |
| ADI AR 2208 | <<locked>> | 90% | 42,061 psi | 89% | 2556 fps | 95.8% |
| ADI Benchmark 8208 | <<locked>> | 82% | 40,843 psi | 87% | 2526 fps | 97.6% |
| Alliant AR-Comp | <<locked>> | 84% | 42,221 psi | 90% | 2582 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 40,944 psi | 87% | 2575 fps | 97.3% |
| Alliant Reloder-15 | <<locked>> | 88% | 41,684 psi | 88% | 2589 fps | 95.9% |
| Alliant Reloder-17 | <<locked>> | 94% | 40,828 psi | 87% | 2648 fps | 96.5% |
| Bofors RP3 | <<locked>> | 90% | 40,524 psi | 86% | 2582 fps | 97.3% |
| Hodgdon BL-C2 | <<locked>> | 84% | 41,481 psi | 88% | 2592 fps | 98.3% |
| Hodgdon CFE223 | <<locked>> | 82% | 42,540 psi | 90% | 2661 fps | 96.1% |
| Hodgdon H4895 | <<locked>> | 84% | 41,495 psi | 88% | 2572 fps | 97.1% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 39,508 psi | 84% | 2559 fps | 96.1% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 42,308 psi | 90% | 2638 fps | 97.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,345 psi | 73% | 1663 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 42,627 psi | 90% | 2575 fps | 97.2% |
| IMR 3031 | <<locked>> | 84% | 40,161 psi | 85% | 2579 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 41,684 psi | 88% | 2543 fps | 96% |
| IMR 4895 | <<locked>> | 88% | 42,598 psi | 90% | 2621 fps | 96.9% |
| IMR 8208 XBR | <<locked>> | 82% | 40,843 psi | 87% | 2526 fps | 97.6% |
| Lovex D073.6 | <<locked>> | 86% | 42,148 psi | 89% | 2592 fps | 99.2% |
| Lovex S060 | <<locked>> | 84% | 41,989 psi | 89% | 2507 fps | 96.6% |
| Lovex S062 | <<locked>> | 88% | 41,075 psi | 87% | 2546 fps | 97.7% |
| Norma 201 | <<locked>> | 84% | 40,350 psi | 86% | 2516 fps | 97.5% |
| Norma 202 | <<locked>> | 84% | 40,306 psi | 86% | 2533 fps | 99.3% |
| Norma 203B | <<locked>> | 88% | 40,915 psi | 87% | 2575 fps | 96.3% |
| Ramshot Big Game | <<locked>> | 88% | 40,683 psi | 86% | 2589 fps | 95.9% |
| Ramshot Wild Boar | <<locked>> | 84% | 42,453 psi | 90% | 2592 fps | 96.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,606 psi | 73% | 1703 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 40,843 psi | 87% | 2664 fps | 98.8% |
| Rottweil R 901 | <<locked>> | 82% | 41,640 psi | 88% | 2523 fps | 99.3% |
| Rottweil R 902 | <<locked>> | 86% | 40,828 psi | 87% | 2520 fps | 97.6% |
| Rottweil R 903 | <<locked>> | 92% | 40,364 psi | 86% | 2569 fps | 97% |
| Shooters World Match Rifle | <<locked>> | 86% | 42,148 psi | 89% | 2592 fps | 99.2% |
| Shooters World Precision | <<locked>> | 88% | 41,075 psi | 87% | 2546 fps | 97.7% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 42,206 psi | 90% | 2625 fps | 96.5% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 42,424 psi | 90% | 2582 fps | 96.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 42,293 psi | 90% | 2490 fps | 99.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 41,640 psi | 88% | 2490 fps | 99.9% |
| Somchem S335 | <<locked>> | 84% | 41,597 psi | 88% | 2493 fps | 99.8% |
| Somchem S341 | <<locked>> | 84% | 40,988 psi | 87% | 2543 fps | 96.2% |
| Somchem S355 | <<locked>> | 92% | 41,655 psi | 88% | 2579 fps | 97.1% |
| Somchem S365ᴾ | <<locked>> | 100% | 38,406 psi | 81% | 2605 fps | 97.4% |
| Vihtavuori N133 | <<locked>> | 84% | 42,250 psi | 90% | 2493 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 42,105 psi | 89% | 2559 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 40,683 psi | 86% | 2520 fps | 99.5% |
| Vihtavuori N150 | <<locked>> | 94% | 42,424 psi | 90% | 2569 fps | 98.4% |
| Vihtavuori N530 | <<locked>> | 82% | 40,625 psi | 86% | 2520 fps | 97.6% |
| Vihtavuori N540 | <<locked>> | 88% | 41,785 psi | 89% | 2556 fps | 99.4% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 41,162 psi | 87% | 2546 fps | 96.7% |
| Winchester 748 | <<locked>> | 84% | 42,250 psi | 90% | 2612 fps | 98.7% |
| Winchester StaBALL Match | <<locked>> | 86% | 41,495 psi | 88% | 2582 fps | 97.1% |
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% | 39,581 psi | 84% | 2467 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 31,995 psi | 68% | 2365 fps | 99.6% |
| Accurate 2520 | <<locked>> | 80% | 38,189 psi | 81% | 2503 fps | 98.5% |
| Accurate 4064 | <<locked>> | 80% | 30,284 psi | 64% | 2343 fps | 97.4% |
| ADI AR 2206H | <<locked>> | 82% | 38,754 psi | 82% | 2507 fps | 95.6% |
| ADI AR 2208 | <<locked>> | 88% | 39,726 psi | 84% | 2510 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 38,218 psi | 81% | 2474 fps | 96.9% |
| Alliant AR-Comp | <<locked>> | 80% | 36,782 psi | 78% | 2487 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 33,794 psi | 72% | 2421 fps | 95.1% |
| Alliant Reloder-15 | <<locked>> | 86% | 39,146 psi | 83% | 2536 fps | 95.1% |
| Alliant Reloder-17 | 73.6 gr | 92% | 38,232 psi | 81% | 2589 fps | 95.6% |
| Bofors RP3 | 66.3 gr | 86% | 35,389 psi | 75% | 2470 fps | 95.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 36,085 psi | 77% | 2480 fps | 96.9% |
| Hodgdon CFE223 | <<locked>> | 80% | 39,639 psi | 84% | 2598 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 36,477 psi | 77% | 2464 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 37,115 psi | 79% | 2507 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 34,737 psi | 74% | 2474 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,541 psi | 54% | 1486 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 35,172 psi | 75% | 2418 fps | 95% |
| IMR 3031 | <<locked>> | 80% | 35,230 psi | 75% | 2477 fps | 99.6% |
| IMR 4064 | <<locked>> | 86% | 39,146 psi | 83% | 2493 fps | 95.2% |
| IMR 4895 | <<locked>> | 84% | 37,565 psi | 80% | 2516 fps | 95.4% |
| IMR 8208 XBR | <<locked>> | 80% | 38,218 psi | 81% | 2474 fps | 96.9% |
| Lovex D073.6 | <<locked>> | 80% | 34,360 psi | 73% | 2434 fps | 97.5% |
| Lovex S060 | <<locked>> | 80% | 37,304 psi | 79% | 2408 fps | 95.2% |
| Lovex S062 | <<locked>> | 82% | 34,156 psi | 72% | 2398 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 35,578 psi | 75% | 2415 fps | 96.2% |
| Norma 202 | <<locked>> | 80% | 35,476 psi | 75% | 2431 fps | 98.4% |
| Norma 203B | <<locked>> | 86% | 38,435 psi | 82% | 2526 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 86% | 38,087 psi | 81% | 2536 fps | 95.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 37,101 psi | 79% | 2480 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,715 psi | 55% | 1522 fps | 100% |
| ReloadSwiss RS 60 | 67.2 gr | 84% | 31,488 psi | 67% | 2428 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 39,334 psi | 83% | 2477 fps | 99% |
| Rottweil R 902 | <<locked>> | 80% | 33,837 psi | 72% | 2369 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 88% | 35,447 psi | 75% | 2464 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 34,360 psi | 73% | 2434 fps | 97.5% |
| Shooters World Precision | <<locked>> | 82% | 34,156 psi | 72% | 2398 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 39,523 psi | 84% | 2572 fps | 95.6% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 37,188 psi | 79% | 2474 fps | 95% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 37,333 psi | 79% | 2395 fps | 98.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,501 psi | 65% | 2260 fps | 98% |
| Somchem S335 | <<locked>> | 80% | 36,796 psi | 78% | 2398 fps | 99.2% |
| Somchem S341 | <<locked>> | 82% | 38,174 psi | 81% | 2484 fps | 95.3% |
| Somchem S355 | <<locked>> | 88% | 36,738 psi | 78% | 2477 fps | 95.6% |
| Somchem S365 | <<locked>> | 96% | 33,794 psi | 72% | 2493 fps | 95.7% |
| Vihtavuori N133 | <<locked>> | 80% | 37,376 psi | 79% | 2402 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 80% | 32,518 psi | 69% | 2372 fps | 99.6% |
| Vihtavuori N140 | <<locked>> | 80% | 33,605 psi | 71% | 2372 fps | 98.3% |
| Vihtavuori N150 | <<locked>> | 86% | 32,764 psi | 70% | 2369 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 38,101 psi | 81% | 2467 fps | 96.9% |
| Vihtavuori N540 | <<locked>> | 80% | 32,300 psi | 69% | 2356 fps | 97.4% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 38,609 psi | 82% | 2493 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 36,883 psi | 78% | 2503 fps | 97.5% |
| Winchester StaBALL Match | <<locked>> | 82% | 36,332 psi | 77% | 2474 fps | 95.5% |
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 55 powders for .375 Fl. Mag. N.E. loaded with the .374 | 235gr | Rhino Penetrator. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,664 fps; across all powders the maximum-charge window runs from 1,663 fps to 2,664 fps. Hodgdon Hybrid 100V gives the best case fill at 100 %, and 55 of the 55 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 235.0 gr projectile in 0.374" calls for a 1:6.0 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, Bofors RP3 rank at the top here: for .375 Fl. Mag. N.E. with the .374 | 235gr | Rhino Penetrator 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.