Load Specifications
Load data in caliber .375 Hoelderlin with .374 | 270gr | Rhino Penetrator bullet and 81 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 52 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.
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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 88% | 47,979 psi | 87% | 2405 fps | 100% |
| Accurate 2460 | <<locked>> | 86% | 49,240 psi | 89% | 2461 fps | 100% |
| Accurate 2495 | <<locked>> | 94% | 47,268 psi | 86% | 2451 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 46,876 psi | 85% | 2464 fps | 99.9% |
| Accurate 4064 | <<locked>> | 96% | 47,123 psi | 86% | 2487 fps | 100% |
| Accurate LT-30 | <<locked>> | 82% | 49,008 psi | 89% | 2359 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 49,385 psi | 90% | 2375 fps | 100% |
| ADI AR 2206H | <<locked>> | 92% | 49,864 psi | 90% | 2513 fps | 98.9% |
| ADI AR 2208 | <<locked>> | 96% | 47,834 psi | 87% | 2464 fps | 97.9% |
| ADI AR 2219 | <<locked>> | 82% | 48,109 psi | 87% | 2457 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 49,458 psi | 90% | 2477 fps | 99.5% |
| Alliant AR-Comp | <<locked>> | 90% | 48,356 psi | 88% | 2470 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 47,398 psi | 86% | 2520 fps | 99% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 49,139 psi | 89% | 2598 fps | 98% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 49,545 psi | 90% | 2526 fps | 99.4% |
| Alliant Reloder-10x | <<locked>> | 84% | 48,182 psi | 87% | 2411 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 47,355 psi | 86% | 2497 fps | 98.1% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 46,557 psi | 84% | 2566 fps | 98.8% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 47,500 psi | 86% | 2356 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 49,168 psi | 89% | 2520 fps | 97.9% |
| Bofors RP3 | <<locked>> | 98% | 49,356 psi | 90% | 2536 fps | 99.4% |
| Hodgdon Benchmark | <<locked>> | 88% | 49,066 psi | 89% | 2428 fps | 99.7% |
| Hodgdon BL-C2 | <<locked>> | 90% | 47,529 psi | 86% | 2500 fps | 99.7% |
| Hodgdon CFE223 | <<locked>> | 88% | 49,226 psi | 89% | 2579 fps | 98.4% |
| Hodgdon H322 | <<locked>> | 84% | 46,891 psi | 85% | 2441 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 47,732 psi | 87% | 2464 fps | 100% |
| Hodgdon H380 | <<locked>> | 96% | 47,892 psi | 87% | 2493 fps | 96.9% |
| Hodgdon H4895 | <<locked>> | 90% | 47,195 psi | 86% | 2477 fps | 98.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 37,115 psi | 67% | 2326 fps | 96.4% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 48,341 psi | 88% | 2546 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,214 psi | 62% | 1496 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 48,617 psi | 88% | 2480 fps | 99% |
| IMR 3031 | <<locked>> | 92% | 48,791 psi | 89% | 2516 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 47,239 psi | 86% | 2444 fps | 98% |
| IMR 4198 | <<locked>> | 84% | 49,095 psi | 89% | 2379 fps | 100% |
| IMR 4895 | <<locked>> | 94% | 48,443 psi | 88% | 2526 fps | 98.8% |
| IMR 8208 XBR | <<locked>> | 90% | 49,458 psi | 90% | 2477 fps | 99.5% |
| Lovex D073.5 | <<locked>> | 86% | 49,197 psi | 89% | 2467 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 92% | 48,095 psi | 87% | 2493 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 47,979 psi | 87% | 2411 fps | 98.5% |
| Lovex S062 | <<locked>> | 96% | 49,443 psi | 90% | 2490 fps | 99.6% |
| Norma 201 | <<locked>> | 92% | 48,733 psi | 88% | 2467 fps | 99.5% |
| Norma 202 | <<locked>> | 92% | 49,023 psi | 89% | 2480 fps | 100% |
| Norma 203B | <<locked>> | 96% | 49,516 psi | 90% | 2533 fps | 98.9% |
| Ramshot Big Game | <<locked>> | 96% | 49,632 psi | 90% | 2552 fps | 98.7% |
| Ramshot TAC | <<locked>> | 88% | 46,963 psi | 85% | 2438 fps | 95.9% |
| Ramshot Wild Boar | <<locked>> | 90% | 48,689 psi | 88% | 2503 fps | 98.6% |
| Ramshot X-Terminator | <<locked>> | 86% | 47,819 psi | 87% | 2434 fps | 98.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,374 psi | 62% | 1532 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 49,530 psi | 90% | 2470 fps | 99.9% |
| ReloadSwiss RS 52 | <<locked>> | 94% | 49,705 psi | 90% | 2595 fps | 98.5% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 49,792 psi | 90% | 2628 fps | 100% |
| Rottweil R 901 | <<locked>> | 88% | 47,210 psi | 86% | 2421 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 48,979 psi | 89% | 2464 fps | 99.5% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 48,979 psi | 89% | 2523 fps | 99.2% |
| Shooters World Match Rifle | <<locked>> | 92% | 48,095 psi | 87% | 2493 fps | 100% |
| Shooters World Precision | <<locked>> | 96% | 49,443 psi | 90% | 2490 fps | 99.6% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 49,298 psi | 89% | 2438 fps | 99.3% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 48,544 psi | 88% | 2467 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 47,805 psi | 87% | 2530 fps | 98.5% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 49,168 psi | 89% | 2428 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 47,718 psi | 87% | 2457 fps | 96.7% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 48,385 psi | 88% | 2487 fps | 98.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 48,312 psi | 88% | 2388 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 47,311 psi | 86% | 2382 fps | 100% |
| Somchem S321 | <<locked>> | 86% | 47,166 psi | 86% | 2464 fps | 99.5% |
| Somchem S335 | <<locked>> | 90% | 47,297 psi | 86% | 2388 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 46,992 psi | 85% | 2454 fps | 98.3% |
| Somchem S355 | <<locked>> | 98% | 46,949 psi | 85% | 2480 fps | 98.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 35,810 psi | 65% | 2369 fps | 97.6% |
| Vihtavuori N130 | <<locked>> | 86% | 48,472 psi | 88% | 2369 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 48,109 psi | 87% | 2382 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 47,572 psi | 86% | 2444 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 49,385 psi | 90% | 2461 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 48,269 psi | 88% | 2467 fps | 99.7% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 42,656 psi | 77% | 2421 fps | 95.9% |
| Vihtavuori N530 | <<locked>> | 88% | 46,833 psi | 85% | 2434 fps | 99.3% |
| Vihtavuori N540 | <<locked>> | 94% | 47,442 psi | 86% | 2454 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 44,164 psi | 80% | 2415 fps | 98.2% |
| Winchester 748 | <<locked>> | 90% | 48,298 psi | 88% | 2516 fps | 99.8% |
| Winchester StaBALL Match | <<locked>> | 92% | 47,456 psi | 86% | 2493 fps | 98.9% |
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% | 37,521 psi | 68% | 2241 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 40,408 psi | 73% | 2323 fps | 99.6% |
| Accurate 2495 | <<locked>> | 80% | 29,921 psi | 54% | 2156 fps | 99.8% |
| Accurate 2520 | <<locked>> | 80% | 35,694 psi | 65% | 2277 fps | 98.8% |
| Accurate 4064 | <<locked>> | 80% | 28,355 psi | 51% | 2136 fps | 97.8% |
| Accurate LT-30 | <<locked>> | 80% | 46,006 psi | 83% | 2316 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 46,398 psi | 84% | 2333 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 80% | 34,345 psi | 62% | 2234 fps | 95.3% |
| ADI AR 2208 | <<locked>> | 88% | 37,536 psi | 68% | 2283 fps | 95.4% |
| ADI AR 2219 | <<locked>> | 80% | 45,063 psi | 82% | 2411 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 36,274 psi | 66% | 2251 fps | 97.3% |
| Alliant AR-Comp | <<locked>> | 80% | 34,577 psi | 63% | 2260 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 41,495 psi | 75% | 2418 fps | 98.1% |
| Alliant Power Pro 2000-MR | 60.2 gr | 88% | 40,118 psi | 73% | 2434 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 31,792 psi | 58% | 2208 fps | 95.6% |
| Alliant Reloder-10x | <<locked>> | 80% | 42,670 psi | 77% | 2329 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 36,941 psi | 67% | 2313 fps | 95.6% |
| Alliant Reloder-17 | <<locked>> | 90% | 33,823 psi | 61% | 2310 fps | 95% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 44,585 psi | 81% | 2313 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 37,855 psi | 69% | 2323 fps | 95% |
| Bofors RP3 | <<locked>> | 84% | 31,009 psi | 56% | 2208 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 38,479 psi | 70% | 2251 fps | 98.3% |
| Hodgdon BL-C2 | <<locked>> | 80% | 33,968 psi | 62% | 2260 fps | 97.3% |
| Hodgdon CFE223 | <<locked>> | 80% | 37,478 psi | 68% | 2369 fps | 95.6% |
| Hodgdon H322 | <<locked>> | 80% | 41,321 psi | 75% | 2352 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 41,626 psi | 76% | 2369 fps | 99.8% |
| Hodgdon H380 | <<locked>> | 92% | 42,047 psi | 76% | 2398 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 34,490 psi | 63% | 2244 fps | 96% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 34,838 psi | 63% | 2280 fps | 95.6% |
| Hodgdon LEVERevolution | 55.1 gr | 82% | 32,880 psi | 60% | 2257 fps | 95.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,251 psi | 46% | 1332 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 33,330 psi | 60% | 2205 fps | 95.5% |
| IMR 3031 | <<locked>> | 80% | 33,141 psi | 60% | 2257 fps | 99.8% |
| IMR 4064 | <<locked>> | 86% | 37,101 psi | 67% | 2267 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 43,700 psi | 79% | 2303 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 33,156 psi | 60% | 2244 fps | 95% |
| IMR 8208 XBR | <<locked>> | 80% | 36,274 psi | 66% | 2251 fps | 97.3% |
| Lovex D073.5 | <<locked>> | 80% | 40,234 psi | 73% | 2326 fps | 98.9% |
| Lovex D073.6 | <<locked>> | 80% | 32,213 psi | 58% | 2218 fps | 97.9% |
| Lovex S060 | <<locked>> | 80% | 35,520 psi | 64% | 2192 fps | 95.6% |
| Lovex S062 | <<locked>> | 80% | 30,240 psi | 55% | 2139 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 33,736 psi | 61% | 2201 fps | 96.6% |
| Norma 202 | <<locked>> | 80% | 33,605 psi | 61% | 2218 fps | 98.8% |
| Norma 203B | <<locked>> | 84% | 33,953 psi | 62% | 2254 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 86% | 35,897 psi | 65% | 2306 fps | 95.4% |
| Ramshot TAC | <<locked>> | 86% | 43,990 psi | 80% | 2388 fps | 95.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 34,911 psi | 63% | 2260 fps | 95.4% |
| Ramshot X-Terminator | <<locked>> | 80% | 39,479 psi | 72% | 2293 fps | 96.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,512 psi | 46% | 1368 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 40,741 psi | 74% | 2333 fps | 99.3% |
| ReloadSwiss RS 52 | 55.7 gr | 84% | 35,505 psi | 64% | 2339 fps | 95% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 29,718 psi | 54% | 2215 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 37,275 psi | 68% | 2251 fps | 99.2% |
| Rottweil R 902 | <<locked>> | 80% | 32,126 psi | 58% | 2159 fps | 96% |
| Rottweil R 903 | <<locked>> | 86% | 31,096 psi | 56% | 2201 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 32,213 psi | 58% | 2218 fps | 97.9% |
| Shooters World Precision | <<locked>> | 80% | 30,240 psi | 55% | 2139 fps | 95.4% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 43,149 psi | 78% | 2343 fps | 98.4% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 45,368 psi | 82% | 2418 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 34,911 psi | 63% | 2293 fps | 95.2% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 43,279 psi | 79% | 2343 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 41,582 psi | 75% | 2356 fps | 95.2% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 35,085 psi | 64% | 2251 fps | 95.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 35,534 psi | 64% | 2178 fps | 99% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 28,892 psi | 52% | 2057 fps | 98.4% |
| Somchem S321 | <<locked>> | 80% | 38,522 psi | 70% | 2320 fps | 98.2% |
| Somchem S335 | <<locked>> | 80% | 34,983 psi | 63% | 2185 fps | 99.4% |
| Somchem S341 | <<locked>> | 82% | 35,955 psi | 65% | 2264 fps | 95.6% |
| Somchem S355 | <<locked>> | 86% | 32,460 psi | 59% | 2211 fps | 95.3% |
| Somchem S365 | <<locked>> | 94% | 29,849 psi | 54% | 2224 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 40,393 psi | 73% | 2251 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 35,505 psi | 64% | 2185 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 30,574 psi | 55% | 2159 fps | 99.8% |
| Vihtavuori N140 | <<locked>> | 80% | 31,778 psi | 58% | 2162 fps | 98.6% |
| Vihtavuori N150 | <<locked>> | 84% | 28,892 psi | 52% | 2113 fps | 95.4% |
| Vihtavuori N160 | <<locked>> | 98% | 40,030 psi | 73% | 2372 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 36,085 psi | 65% | 2247 fps | 97.3% |
| Vihtavuori N540 | <<locked>> | 80% | 30,356 psi | 55% | 2146 fps | 97.8% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 34,026 psi | 62% | 2221 fps | 95.2% |
| Winchester 748 | <<locked>> | 80% | 34,693 psi | 63% | 2277 fps | 97.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 31,937 psi | 58% | 2205 fps | 95.1% |
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 81 powders for .375 Hoelderlin loaded with the .374 | 270gr | Rhino Penetrator. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,628 fps; across all powders the maximum-charge window runs from 1,496 fps to 2,628 fps. Alliant Reloder-17 gives the best case fill at 100 %, and 81 of the 81 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 62–90 %, leaving at least 10 % headroom. The 270.0 gr projectile in 0.374" calls for a 1:17.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-17, 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. Alliant Power Pro 2000-MR, ReloadSwiss RS 52, Hodgdon LEVERevolution rank at the top here: for .375 Hoelderlin with the .374 | 270gr | 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.