Load Specifications
Load data in caliber .375 R Hoelderlin with .374 | 250gr | Rhino Solid Shank bullet and 73 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 Power Pro 2000-MR and ReloadSwiss RS 52.
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: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 86% | 46,383 psi | 89% | 2516 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 44,454 psi | 85% | 2523 fps | 99.9% |
| Accurate 2495 | <<locked>> | 92% | 45,963 psi | 88% | 2566 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 45,223 psi | 87% | 2575 fps | 99.8% |
| Accurate 4064 | <<locked>> | 94% | 45,643 psi | 87% | 2598 fps | 100% |
| ADI AR 2206H | <<locked>> | 88% | 45,252 psi | 87% | 2575 fps | 98% |
| ADI AR 2208 | <<locked>> | 94% | 46,209 psi | 89% | 2572 fps | 97.5% |
| ADI Benchmark 8208 | <<locked>> | 86% | 44,860 psi | 86% | 2543 fps | 98.9% |
| Alliant AR-Comp | <<locked>> | 88% | 46,572 psi | 89% | 2585 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 45,629 psi | 87% | 2628 fps | 98.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 44,251 psi | 85% | 2651 fps | 96.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 45,049 psi | 86% | 2592 fps | 98.7% |
| Alliant Reloder-10x | <<locked>> | 82% | 46,673 psi | 89% | 2526 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 45,919 psi | 88% | 2608 fps | 97.7% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 42,119 psi | 81% | 2585 fps | 95.8% |
| Alliant Reloder-17 | <<locked>> | 98% | 45,107 psi | 86% | 2677 fps | 98.4% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 44,512 psi | 85% | 2579 fps | 96.7% |
| Bofors RP3 | <<locked>> | 94% | 44,643 psi | 86% | 2598 fps | 98.8% |
| Hodgdon Benchmark | <<locked>> | 84% | 44,483 psi | 85% | 2490 fps | 99.2% |
| Hodgdon BL-C2 | <<locked>> | 88% | 45,905 psi | 88% | 2612 fps | 99.4% |
| Hodgdon CFE223 | <<locked>> | 84% | 44,266 psi | 85% | 2635 fps | 97.3% |
| Hodgdon H322 | <<locked>> | 82% | 45,324 psi | 87% | 2552 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 45,977 psi | 88% | 2572 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 46,369 psi | 89% | 2605 fps | 96.4% |
| Hodgdon H4895 | <<locked>> | 88% | 45,614 psi | 87% | 2589 fps | 98.5% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 38,218 psi | 73% | 2477 fps | 96.6% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 46,818 psi | 90% | 2661 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,316 psi | 66% | 1601 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 47,108 psi | 90% | 2595 fps | 98.7% |
| IMR 3031 | <<locked>> | 88% | 44,469 psi | 85% | 2592 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 45,832 psi | 88% | 2559 fps | 97.6% |
| IMR 4895 | <<locked>> | 92% | 46,992 psi | 90% | 2641 fps | 98.4% |
| IMR 8208 XBR | <<locked>> | 86% | 44,860 psi | 86% | 2543 fps | 98.9% |
| Lovex D073.5 | <<locked>> | 82% | 44,179 psi | 85% | 2523 fps | 99.3% |
| Lovex D073.6 | <<locked>> | 90% | 46,644 psi | 89% | 2608 fps | 99.9% |
| Lovex S060 | <<locked>> | 88% | 46,340 psi | 89% | 2523 fps | 98.1% |
| Lovex S062 | <<locked>> | 92% | 45,078 psi | 86% | 2559 fps | 99% |
| Norma 201 | <<locked>> | 90% | 47,239 psi | 90% | 2582 fps | 99.2% |
| Norma 202 | <<locked>> | 88% | 44,396 psi | 85% | 2546 fps | 99.9% |
| Norma 203B | <<locked>> | 92% | 45,092 psi | 86% | 2598 fps | 98% |
| Ramshot Big Game | <<locked>> | 92% | 45,005 psi | 86% | 2615 fps | 97.8% |
| Ramshot Wild Boar | <<locked>> | 88% | 46,978 psi | 90% | 2612 fps | 98.2% |
| Ramshot X-Terminator | <<locked>> | 84% | 45,977 psi | 88% | 2539 fps | 97.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,432 psi | 66% | 1637 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 44,527 psi | 85% | 2530 fps | 99.6% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 44,846 psi | 86% | 2657 fps | 97.5% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 45,107 psi | 86% | 2690 fps | 99.8% |
| Rottweil R 901 | <<locked>> | 86% | 45,745 psi | 88% | 2533 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 90% | 44,802 psi | 86% | 2533 fps | 98.9% |
| Rottweil R 903 | <<locked>> | 96% | 44,541 psi | 85% | 2589 fps | 98.5% |
| Shooters World Match Rifle | <<locked>> | 90% | 46,644 psi | 89% | 2608 fps | 99.9% |
| Shooters World Precision | <<locked>> | 92% | 45,078 psi | 86% | 2559 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 46,412 psi | 89% | 2648 fps | 98.1% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 45,934 psi | 88% | 2566 fps | 96.1% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 46,630 psi | 89% | 2595 fps | 98.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 46,659 psi | 89% | 2500 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 45,919 psi | 88% | 2497 fps | 100% |
| Somchem S321 | <<locked>> | 84% | 45,295 psi | 87% | 2572 fps | 99.2% |
| Somchem S335 | <<locked>> | 88% | 45,687 psi | 88% | 2500 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 45,455 psi | 87% | 2566 fps | 97.9% |
| Somchem S355 | <<locked>> | 96% | 45,571 psi | 87% | 2592 fps | 98.5% |
| Somchem S365ᴾ | <<locked>> | 100% | 37,028 psi | 71% | 2523 fps | 97.8% |
| Vihtavuori N130 | <<locked>> | 84% | 46,688 psi | 89% | 2480 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 46,543 psi | 89% | 2493 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 46,108 psi | 88% | 2559 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 44,846 psi | 86% | 2530 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 46,630 psi | 89% | 2579 fps | 99.4% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 44,019 psi | 84% | 2575 fps | 96.1% |
| Vihtavuori N530 | <<locked>> | 86% | 45,107 psi | 86% | 2539 fps | 99% |
| Vihtavuori N540 | <<locked>> | 92% | 46,050 psi | 88% | 2569 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 45,571 psi | 87% | 2569 fps | 98.4% |
| Winchester 748 | <<locked>> | 88% | 46,673 psi | 89% | 2628 fps | 99.6% |
| Winchester StaBALL Match | <<locked>> | 90% | 45,905 psi | 88% | 2605 fps | 98.6% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 38,566 psi | 74% | 2388 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 41,524 psi | 80% | 2474 fps | 99.6% |
| Accurate 2495 | <<locked>> | 80% | 30,966 psi | 59% | 2293 fps | 99.8% |
| Accurate 2520 | <<locked>> | 80% | 36,912 psi | 71% | 2425 fps | 98.8% |
| Accurate 4064 | <<locked>> | 80% | 29,298 psi | 56% | 2274 fps | 97.9% |
| ADI AR 2206H | <<locked>> | 80% | 35,302 psi | 68% | 2379 fps | 95.3% |
| ADI AR 2208 | <<locked>> | 88% | 38,551 psi | 74% | 2431 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 37,246 psi | 71% | 2398 fps | 97.3% |
| Alliant AR-Comp | <<locked>> | 80% | 35,795 psi | 69% | 2411 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 42,714 psi | 82% | 2575 fps | 98.1% |
| Alliant Power Pro 2000-MR | 66.1 gr | 88% | 41,408 psi | 79% | 2595 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 32,837 psi | 63% | 2352 fps | 95.7% |
| Alliant Reloder-10x | <<locked>> | 80% | 43,743 psi | 84% | 2480 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 37,898 psi | 73% | 2457 fps | 95.6% |
| Alliant Reloder-16 | <<locked>> | 98% | 39,653 psi | 76% | 2533 fps | 95% |
| Alliant Reloder-17 | <<locked>> | 90% | 34,867 psi | 67% | 2457 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 38,914 psi | 75% | 2474 fps | 95.1% |
| Bofors RP3 | <<locked>> | 84% | 32,068 psi | 61% | 2349 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 39,407 psi | 75% | 2398 fps | 98.3% |
| Hodgdon BL-C2 | <<locked>> | 80% | 35,012 psi | 67% | 2405 fps | 97.4% |
| Hodgdon CFE223 | <<locked>> | 80% | 38,493 psi | 74% | 2520 fps | 95.7% |
| Hodgdon H322 | <<locked>> | 80% | 42,279 psi | 81% | 2503 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 42,989 psi | 82% | 2523 fps | 99.8% |
| Hodgdon H380 | <<locked>> | 92% | 43,526 psi | 83% | 2556 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 35,476 psi | 68% | 2388 fps | 96.1% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 33,881 psi | 65% | 2382 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 31,633 psi | 61% | 2346 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,382 psi | 49% | 1427 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 34,258 psi | 66% | 2346 fps | 95.5% |
| IMR 3031 | <<locked>> | 80% | 34,098 psi | 65% | 2402 fps | 99.8% |
| IMR 4064 | <<locked>> | 86% | 38,087 psi | 73% | 2415 fps | 95.7% |
| IMR 4895 | <<locked>> | 82% | 34,098 psi | 65% | 2385 fps | 95% |
| IMR 8208 XBR | <<locked>> | 80% | 37,246 psi | 71% | 2398 fps | 97.3% |
| Lovex D073.5 | <<locked>> | 80% | 41,307 psi | 79% | 2474 fps | 99% |
| Lovex D073.6 | <<locked>> | 80% | 33,214 psi | 64% | 2359 fps | 97.9% |
| Lovex S060 | <<locked>> | 80% | 36,434 psi | 70% | 2336 fps | 95.7% |
| Lovex S062 | <<locked>> | 80% | 31,154 psi | 60% | 2277 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 34,679 psi | 66% | 2343 fps | 96.7% |
| Norma 202 | <<locked>> | 80% | 34,548 psi | 66% | 2359 fps | 98.8% |
| Norma 203B | <<locked>> | 84% | 34,925 psi | 67% | 2398 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 86% | 36,941 psi | 71% | 2457 fps | 95.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 36,056 psi | 69% | 2408 fps | 95.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 40,422 psi | 77% | 2438 fps | 96.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,585 psi | 49% | 1463 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 41,785 psi | 80% | 2484 fps | 99.3% |
| ReloadSwiss RS 52 | 61.2 gr | 84% | 36,767 psi | 70% | 2497 fps | 95.1% |
| ReloadSwiss RS 60 | 62.1 gr | 84% | 30,574 psi | 59% | 2359 fps | 96.1% |
| Rottweil R 901 | <<locked>> | 80% | 38,319 psi | 73% | 2398 fps | 99.2% |
| Rottweil R 902 | <<locked>> | 80% | 33,011 psi | 63% | 2297 fps | 96.1% |
| Rottweil R 903 | <<locked>> | 86% | 32,126 psi | 62% | 2343 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 33,214 psi | 64% | 2359 fps | 97.9% |
| Shooters World Precision | <<locked>> | 80% | 31,154 psi | 60% | 2277 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 35,998 psi | 69% | 2441 fps | 95.3% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 42,960 psi | 82% | 2513 fps | 95.3% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 36,143 psi | 69% | 2398 fps | 95.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 36,347 psi | 70% | 2316 fps | 99% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 29,631 psi | 57% | 2188 fps | 98.4% |
| Somchem S321 | <<locked>> | 80% | 39,668 psi | 76% | 2467 fps | 98.2% |
| Somchem S335 | <<locked>> | 80% | 35,868 psi | 69% | 2323 fps | 99.5% |
| Somchem S341 | <<locked>> | 82% | 37,014 psi | 71% | 2408 fps | 95.7% |
| Somchem S355 | <<locked>> | 86% | 33,359 psi | 64% | 2352 fps | 95.3% |
| Somchem S365 | <<locked>> | 94% | 30,734 psi | 59% | 2365 fps | 95.3% |
| Vihtavuori N130 | <<locked>> | 80% | 41,307 psi | 79% | 2395 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 36,361 psi | 70% | 2323 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 31,517 psi | 60% | 2297 fps | 99.8% |
| Vihtavuori N140 | <<locked>> | 80% | 32,605 psi | 62% | 2300 fps | 98.6% |
| Vihtavuori N150 | <<locked>> | 84% | 29,805 psi | 57% | 2251 fps | 95.5% |
| Vihtavuori N160 | <<locked>> | 98% | 41,365 psi | 79% | 2530 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 36,999 psi | 71% | 2388 fps | 97.3% |
| Vihtavuori N540 | <<locked>> | 80% | 31,256 psi | 60% | 2283 fps | 97.8% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 35,070 psi | 67% | 2365 fps | 95.4% |
| Winchester 748 | <<locked>> | 80% | 35,650 psi | 68% | 2421 fps | 97.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 32,938 psi | 63% | 2346 fps | 95.2% |
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 99 powders for .375 R Hoelderlin loaded with the .374 | 250gr | Rhino Solid Shank. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,690 fps; across all powders the maximum-charge window runs from 1,601 fps to 2,690 fps. Accurate 4350 gives the best case fill at 100 %, and 99 of the 99 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (360 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 250.0 gr projectile in 0.374" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-23 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 Power Pro 2000-MR, ReloadSwiss RS 52 rank at the top here: for .375 R Hoelderlin with the .374 | 250gr | Rhino Solid Shank they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Alliant Reloder-23, Bofors RP7 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.