Load Specifications
Load data in caliber .375 Hoelderlin with .375 | 300gr | Woodleigh FMJ bullet and 90 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 Alliant Power Pro 2000-MR.
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>> | 84% | 48,370 psi | 88% | 2293 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 49,647 psi | 90% | 2352 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 48,718 psi | 88% | 2349 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 49,211 psi | 89% | 2395 fps | 100% |
| Accurate 4064 | <<locked>> | 92% | 48,602 psi | 88% | 2388 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 47,152 psi | 86% | 2441 fps | 98.8% |
| ADI AR 2206H | <<locked>> | 86% | 47,253 psi | 86% | 2339 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 92% | 48,124 psi | 87% | 2338 fps | 98.9% |
| ADI Benchmark 8208 | <<locked>> | 86% | 49,632 psi | 90% | 2375 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 49,313 psi | 89% | 2328 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 49,284 psi | 89% | 2474 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 47,572 psi | 86% | 2359 fps | 99.7% |
| Alliant Reloder-15 | <<locked>> | 90% | 48,095 psi | 87% | 2373 fps | 99.1% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 47,253 psi | 86% | 2414 fps | 98.6% |
| Alliant Reloder-17 | <<locked>> | 96% | 47,224 psi | 86% | 2449 fps | 99.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 34,011 psi | 62% | 2182 fps | 96.2% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 49,661 psi | 90% | 2395 fps | 98.9% |
| Bofors RP3 | <<locked>> | 92% | 47,268 psi | 86% | 2367 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 84% | 48,776 psi | 89% | 2293 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 48,138 psi | 87% | 2398 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 49,676 psi | 90% | 2477 fps | 99.5% |
| Hodgdon H322 | <<locked>> | 84% | 49,545 psi | 90% | 2334 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 48,660 psi | 88% | 2374 fps | 98.2% |
| Hodgdon H414 | <<locked>> | 96% | 48,936 psi | 89% | 2429 fps | 96.3% |
| Hodgdon H4895 | <<locked>> | 86% | 47,659 psi | 86% | 2349 fps | 99.6% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 43,250 psi | 78% | 2314 fps | 99% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 49,124 psi | 89% | 2451 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,781 psi | 65% | 1431 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 47,863 psi | 87% | 2369 fps | 99.7% |
| IMR 3031 | <<locked>> | 90% | 48,660 psi | 88% | 2364 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 47,007 psi | 85% | 2343 fps | 99.2% |
| IMR 4451 Enduron | <<locked>> | 94% | 47,572 psi | 86% | 2352 fps | 96% |
| IMR 4831ᴾ | <<locked>> | 100% | 40,509 psi | 74% | 2279 fps | 97.1% |
| IMR 4895 | <<locked>> | 90% | 49,269 psi | 89% | 2400 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 86% | 49,632 psi | 90% | 2345 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 82% | 49,487 psi | 90% | 2334 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 49,211 psi | 89% | 2366 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 47,645 psi | 86% | 2282 fps | 99.3% |
| Lovex S062 | <<locked>> | 90% | 47,369 psi | 86% | 2326 fps | 99.8% |
| Lovex S065 | <<locked>> | 96% | 46,470 psi | 84% | 2317 fps | 97% |
| Lovex S070 | <<locked>> | 98% | 47,485 psi | 86% | 2339 fps | 95.9% |
| Norma 201 | <<locked>> | 88% | 49,255 psi | 89% | 2340 fps | 99.9% |
| Norma 202 | <<locked>> | 88% | 49,516 psi | 90% | 2345 fps | 100% |
| Norma 203B | <<locked>> | 90% | 47,340 psi | 86% | 2362 fps | 99.3% |
| Norma URPᴾ | <<locked>> | 100% | 48,080 psi | 87% | 2401 fps | 98.4% |
| Ramshot Big Game | <<locked>> | 90% | 47,210 psi | 86% | 2383 fps | 99.2% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 46,601 psi | 85% | 2393 fps | 96.5% |
| Ramshot TAC | <<locked>> | 84% | 46,731 psi | 85% | 2309 fps | 97.2% |
| Ramshot Wild Boar | <<locked>> | 86% | 48,994 psi | 89% | 2374 fps | 99.4% |
| Ramshot X-Terminator | <<locked>> | 82% | 47,616 psi | 86% | 2304 fps | 99.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,302 psi | 64% | 1465 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 49,255 psi | 89% | 2330 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 49,501 psi | 90% | 2361 fps | 96.9% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 47,514 psi | 86% | 2422 fps | 99.1% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 47,224 psi | 86% | 2455 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 47,906 psi | 87% | 2427 fps | 98.2% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 48,588 psi | 88% | 2444 fps | 97.7% |
| Rottweil R 901 | <<locked>> | 84% | 47,514 psi | 86% | 2287 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 49,559 psi | 90% | 2335 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 94% | 47,094 psi | 85% | 2358 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 96% | 46,470 psi | 84% | 2317 fps | 97% |
| Shooters World Match Rifle | <<locked>> | 88% | 49,211 psi | 89% | 2366 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 47,369 psi | 86% | 2326 fps | 99.8% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 49,559 psi | 90% | 2415 fps | 96.9% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 48,805 psi | 89% | 2413 fps | 99.4% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 47,732 psi | 87% | 2331 fps | 97.9% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 48,689 psi | 88% | 2359 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 48,298 psi | 88% | 2255 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 47,776 psi | 87% | 2254 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 49,211 psi | 89% | 2314 fps | 96.1% |
| Somchem S321 | <<locked>> | 82% | 47,137 psi | 86% | 2328 fps | 99.9% |
| Somchem S335 | <<locked>> | 86% | 47,558 psi | 86% | 2257 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 47,355 psi | 86% | 2329 fps | 99.2% |
| Somchem S355 | <<locked>> | 94% | 47,950 psi | 87% | 2359 fps | 99.6% |
| Somchem S365ᴾ | <<locked>> | 100% | 41,974 psi | 76% | 2361 fps | 99.7% |
| Unknown powder | <<locked>> | 98% | 48,356 psi | 88% | 2410 fps | 98% |
| Vihtavuori N130 | <<locked>> | 82% | 47,311 psi | 86% | 2218 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 47,718 psi | 87% | 2240 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 48,747 psi | 88% | 2339 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 49,095 psi | 89% | 2319 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 49,545 psi | 90% | 2344 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 49,676 psi | 90% | 2388 fps | 98.5% |
| Vihtavuori N530 | <<locked>> | 84% | 49,356 psi | 90% | 2350 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 90% | 48,805 psi | 89% | 2344 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 48,791 psi | 89% | 2428 fps | 98.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 35,694 psi | 65% | 2245 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 47,224 psi | 86% | 2346 fps | 99.6% |
| Winchester 748 | <<locked>> | 84% | 49,763 psi | 90% | 2393 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 48,936 psi | 89% | 2429 fps | 96.3% |
| Winchester StaBALL Match | <<locked>> | 82% | 49,255 psi | 89% | 2382 fps | 99.7% |
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% | 42,714 psi | 78% | 2215 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 46,456 psi | 84% | 2310 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 35,230 psi | 64% | 2149 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 40,059 psi | 73% | 2260 fps | 99.9% |
| Accurate 4064 | <<locked>> | 80% | 33,344 psi | 61% | 2139 fps | 99.8% |
| Accurate 4350 | <<locked>> | 90% | 33,330 psi | 60% | 2201 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 39,276 psi | 71% | 2206 fps | 98% |
| ADI AR 2208 | <<locked>> | 80% | 33,475 psi | 61% | 2078 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 41,263 psi | 75% | 2244 fps | 99.4% |
| Alliant AR-Comp | <<locked>> | 80% | 40,466 psi | 73% | 2211 fps | 100% |
| Alliant Power Pro 2000-MR | 57.4 gr | 80% | 35,317 psi | 64% | 2214 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 32,547 psi | 59% | 2096 fps | 97.1% |
| Alliant Reloder-15 | <<locked>> | 80% | 35,201 psi | 64% | 2149 fps | 96.4% |
| Alliant Reloder-16 | <<locked>> | 90% | 34,621 psi | 63% | 2181 fps | 95.1% |
| Alliant Reloder-17 | 57.9 gr | 82% | 29,979 psi | 54% | 2101 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 98% | 31,517 psi | 57% | 2137 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 38,072 psi | 69% | 2204 fps | 96.6% |
| Bofors RP3 | <<locked>> | 80% | 31,908 psi | 58% | 2097 fps | 97% |
| Hodgdon Benchmark | <<locked>> | 80% | 43,381 psi | 79% | 2212 fps | 99.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 39,363 psi | 71% | 2264 fps | 99.6% |
| Hodgdon CFE223 | <<locked>> | 80% | 43,091 psi | 78% | 2375 fps | 98.7% |
| Hodgdon H322 | <<locked>> | 80% | 43,671 psi | 79% | 2251 fps | 100% |
| Hodgdon H380 | <<locked>> | 84% | 37,521 psi | 68% | 2188 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 94% | 45,876 psi | 83% | 2380 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 39,552 psi | 72% | 2215 fps | 98.5% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 29,689 psi | 54% | 2049 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 33,489 psi | 61% | 2178 fps | 97.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,020 psi | 47% | 1278 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 35,244 psi | 64% | 2152 fps | 97.8% |
| IMR 3031 | <<locked>> | 80% | 35,476 psi | 64% | 2161 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 32,808 psi | 60% | 2090 fps | 96% |
| IMR 4451 Enduron | <<locked>> | 92% | 44,672 psi | 81% | 2306 fps | 95.3% |
| IMR 4831 | <<locked>> | 96% | 35,317 psi | 64% | 2192 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 35,955 psi | 65% | 2174 fps | 97.3% |
| IMR 8208 XBR | <<locked>> | 80% | 41,263 psi | 75% | 2216 fps | 99.2% |
| Lovex D073.5 | <<locked>> | 80% | 46,166 psi | 84% | 2288 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 37,623 psi | 68% | 2188 fps | 99.6% |
| Lovex S060 | <<locked>> | 80% | 39,871 psi | 72% | 2156 fps | 98.1% |
| Lovex S062 | <<locked>> | 80% | 34,780 psi | 63% | 2112 fps | 98.1% |
| Lovex S065 | <<locked>> | 92% | 41,060 psi | 75% | 2228 fps | 95.6% |
| Lovex S070 | <<locked>> | 96% | 43,976 psi | 80% | 2296 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 38,464 psi | 70% | 2167 fps | 98.8% |
| Norma 202 | <<locked>> | 80% | 38,566 psi | 70% | 2179 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 34,563 psi | 63% | 2139 fps | 96.8% |
| Norma URP | <<locked>> | 90% | 34,389 psi | 62% | 2176 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 33,895 psi | 62% | 2145 fps | 96.2% |
| Ramshot Hunter | <<locked>> | 98% | 44,773 psi | 81% | 2348 fps | 95.7% |
| Ramshot TAC | <<locked>> | 80% | 41,075 psi | 75% | 2215 fps | 95.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 40,263 psi | 73% | 2234 fps | 98.1% |
| Ramshot X-Terminator | <<locked>> | 80% | 44,527 psi | 81% | 2256 fps | 98.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,179 psi | 48% | 1307 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 46,195 psi | 84% | 2287 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 43,511 psi | 79% | 2268 fps | 95.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 36,114 psi | 66% | 2225 fps | 96.6% |
| ReloadSwiss RS 60 | 56.5 gr | 80% | 29,979 psi | 54% | 2112 fps | 97.7% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 35,752 psi | 65% | 2232 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 39,117 psi | 71% | 2289 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 42,395 psi | 77% | 2209 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 36,593 psi | 66% | 2126 fps | 98.4% |
| Rottweil R 903 | <<locked>> | 80% | 30,008 psi | 54% | 2048 fps | 96% |
| Shooters World Long Rifle | <<locked>> | 92% | 41,060 psi | 75% | 2228 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 37,623 psi | 68% | 2188 fps | 99.6% |
| Shooters World Precision | <<locked>> | 80% | 34,780 psi | 63% | 2112 fps | 98.1% |
| Shooters World SW4350 | <<locked>> | 96% | 43,976 psi | 80% | 2329 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 31,096 psi | 56% | 2087 fps | 95.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 39,044 psi | 71% | 2189 fps | 95.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 37,681 psi | 68% | 2178 fps | 97.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,234 psi | 73% | 2136 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,112 psi | 60% | 2025 fps | 99.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 46,151 psi | 84% | 2272 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 44,222 psi | 80% | 2284 fps | 99.7% |
| Somchem S335 | <<locked>> | 80% | 39,610 psi | 72% | 2139 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 38,798 psi | 70% | 2192 fps | 97.7% |
| Somchem S355 | <<locked>> | 80% | 31,082 psi | 56% | 2056 fps | 96.1% |
| Somchem S365 | <<locked>> | 86% | 27,064 psi | 49% | 2038 fps | 95.5% |
| Unknown powder | <<locked>> | 90% | 37,565 psi | 68% | 2226 fps | 95.3% |
| Vihtavuori N130 | <<locked>> | 80% | 44,686 psi | 81% | 2182 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 37,724 psi | 68% | 2094 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 35,723 psi | 65% | 2149 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 35,940 psi | 65% | 2118 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 80% | 26,484 psi | 48% | 1936 fps | 95.7% |
| Vihtavuori N160 | <<locked>> | 88% | 35,273 psi | 64% | 2160 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 43,366 psi | 79% | 2260 fps | 99.6% |
| Vihtavuori N540 | <<locked>> | 80% | 35,621 psi | 65% | 2135 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 88% | 35,476 psi | 64% | 2199 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 98% | 32,808 psi | 60% | 2199 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 30,095 psi | 55% | 2026 fps | 95.2% |
| Winchester 748 | <<locked>> | 80% | 43,337 psi | 79% | 2301 fps | 99.9% |
| Winchester 760 | <<locked>> | 94% | 45,876 psi | 83% | 2380 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,934 psi | 83% | 2334 fps | 99.5% |
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 90 powders for .375 Hoelderlin loaded with the .375 | 300gr | Woodleigh FMJ. Hodgdon CFE223 delivers the highest muzzle velocity at 2,477 fps; across all powders the maximum-charge window runs from 1,431 fps to 2,477 fps. Accurate 4350 gives the best case fill at 100 %, and 90 of the 90 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 300.0 gr projectile in 0.375" 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 Reloder-17, Alliant Power Pro 2000-MR rank at the top here: for .375 Hoelderlin with the .375 | 300gr | Woodleigh FMJ 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.