Load Specifications
Load data in caliber .375 Hoelderlin with .375 | 300gr | Nosler Solid bullet and 89 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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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>> | 86% | 48,327 psi | 88% | 2267 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 49,719 psi | 90% | 2329 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 48,167 psi | 87% | 2320 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 49,066 psi | 89% | 2369 fps | 100% |
| Accurate 4064 | <<locked>> | 94% | 47,935 psi | 87% | 2356 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 43,062 psi | 78% | 2352 fps | 97.7% |
| ADI AR 2206H | <<locked>> | 88% | 47,413 psi | 86% | 2343 fps | 99.2% |
| ADI AR 2208 | <<locked>> | 94% | 48,167 psi | 87% | 2339 fps | 98.9% |
| ADI Benchmark 8208 | <<locked>> | 86% | 46,876 psi | 85% | 2306 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 88% | 49,023 psi | 89% | 2329 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 47,906 psi | 87% | 2388 fps | 99.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 49,371 psi | 90% | 2474 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 47,181 psi | 86% | 2356 fps | 99.7% |
| Alliant Reloder-10x | <<locked>> | 82% | 48,457 psi | 88% | 2274 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 47,993 psi | 87% | 2372 fps | 99% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 43,874 psi | 80% | 2362 fps | 97.9% |
| Alliant Reloder-17 | <<locked>> | 98% | 47,094 psi | 85% | 2448 fps | 99.6% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 49,501 psi | 90% | 2392 fps | 98.8% |
| Bofors RP3 | <<locked>> | 94% | 46,949 psi | 85% | 2365 fps | 99.7% |
| Hodgdon Benchmark | <<locked>> | 86% | 49,211 psi | 89% | 2297 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 48,095 psi | 87% | 2372 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 49,545 psi | 90% | 2448 fps | 99.3% |
| Hodgdon H322 | <<locked>> | 86% | 49,734 psi | 90% | 2339 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 48,457 psi | 88% | 2372 fps | 98.1% |
| Hodgdon H414 | <<locked>> | 98% | 48,573 psi | 88% | 2421 fps | 96% |
| Hodgdon H4895 | <<locked>> | 88% | 47,834 psi | 87% | 2352 fps | 99.6% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 40,074 psi | 73% | 2264 fps | 98.4% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 48,733 psi | 88% | 2415 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,621 psi | 63% | 1414 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 47,964 psi | 87% | 2339 fps | 99.5% |
| IMR 3031 | <<locked>> | 92% | 48,182 psi | 87% | 2362 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 49,734 psi | 90% | 2352 fps | 99.2% |
| IMR 4198 | <<locked>> | 82% | 49,240 psi | 89% | 2241 fps | 100% |
| IMR 4831ᴾ | <<locked>> | 100% | 37,101 psi | 67% | 2231 fps | 96.2% |
| IMR 4895 | <<locked>> | 92% | 49,211 psi | 89% | 2402 fps | 99.5% |
| IMR 8208 XBR | <<locked>> | 86% | 46,876 psi | 85% | 2306 fps | 99.7% |
| Lovex D073.5 | <<locked>> | 84% | 49,516 psi | 90% | 2336 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 48,776 psi | 89% | 2365 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 47,950 psi | 87% | 2283 fps | 99.2% |
| Lovex S062 | <<locked>> | 92% | 47,137 psi | 86% | 2323 fps | 99.8% |
| Lovex S065ᴾ | <<locked>> | 100% | 49,095 psi | 89% | 2356 fps | 97.4% |
| Norma 201 | <<locked>> | 90% | 49,284 psi | 89% | 2339 fps | 99.9% |
| Norma 202 | <<locked>> | 90% | 49,472 psi | 90% | 2346 fps | 100% |
| Norma 203B | <<locked>> | 92% | 47,166 psi | 86% | 2362 fps | 99.3% |
| Norma URPᴾ | <<locked>> | 100% | 43,526 psi | 79% | 2352 fps | 97.6% |
| Ramshot Big Game | <<locked>> | 92% | 47,079 psi | 85% | 2382 fps | 99.1% |
| Ramshot TAC | <<locked>> | 86% | 46,920 psi | 85% | 2310 fps | 97.1% |
| Ramshot Wild Boar | <<locked>> | 88% | 49,139 psi | 89% | 2379 fps | 99.4% |
| Ramshot X-Terminator | <<locked>> | 84% | 47,848 psi | 87% | 2306 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,882 psi | 63% | 1450 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 49,661 psi | 90% | 2336 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 49,284 psi | 89% | 2356 fps | 96.7% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 47,253 psi | 86% | 2425 fps | 99% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 47,195 psi | 86% | 2454 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 43,018 psi | 78% | 2372 fps | 97.3% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 44,556 psi | 81% | 2388 fps | 96.7% |
| Rottweil R 901 | <<locked>> | 86% | 47,732 psi | 87% | 2290 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 49,574 psi | 90% | 2336 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 98% | 49,835 psi | 90% | 2398 fps | 99.8% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 49,095 psi | 89% | 2356 fps | 97.4% |
| Shooters World Match Rifle | <<locked>> | 90% | 48,776 psi | 89% | 2365 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 47,137 psi | 86% | 2323 fps | 99.8% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 49,197 psi | 89% | 2306 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 48,573 psi | 88% | 2411 fps | 99.4% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 49,458 psi | 90% | 2290 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 47,921 psi | 87% | 2333 fps | 97.8% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 48,791 psi | 89% | 2362 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 48,385 psi | 88% | 2254 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 47,732 psi | 87% | 2254 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 49,124 psi | 89% | 2313 fps | 95.9% |
| Somchem S321 | <<locked>> | 84% | 47,456 psi | 86% | 2336 fps | 99.9% |
| Somchem S335 | <<locked>> | 88% | 47,500 psi | 86% | 2257 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 47,514 psi | 86% | 2333 fps | 99.2% |
| Somchem S355 | <<locked>> | 96% | 47,761 psi | 87% | 2359 fps | 99.5% |
| Somchem S365ᴾ | <<locked>> | 100% | 38,856 psi | 71% | 2310 fps | 99.3% |
| Unknown powderᴾ | <<locked>> | 100% | 47,935 psi | 87% | 2405 fps | 97.8% |
| Vihtavuori N130 | <<locked>> | 84% | 48,486 psi | 88% | 2231 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 48,327 psi | 88% | 2247 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 48,399 psi | 88% | 2313 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 49,676 psi | 90% | 2326 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 48,907 psi | 89% | 2343 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 46,021 psi | 84% | 2352 fps | 97.9% |
| Vihtavuori N530 | <<locked>> | 86% | 47,050 psi | 85% | 2303 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 92% | 47,877 psi | 87% | 2326 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 44,918 psi | 82% | 2356 fps | 97.6% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 47,224 psi | 86% | 2343 fps | 99.5% |
| Winchester 748 | <<locked>> | 86% | 49,617 psi | 90% | 2395 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 48,573 psi | 88% | 2421 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 84% | 49,472 psi | 90% | 2388 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% | 40,277 psi | 73% | 2156 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 43,453 psi | 79% | 2241 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 32,677 psi | 59% | 2083 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 37,202 psi | 68% | 2188 fps | 99.6% |
| Accurate 4064 | <<locked>> | 80% | 30,951 psi | 56% | 2073 fps | 99.3% |
| Accurate 4350 | <<locked>> | 94% | 34,983 psi | 63% | 2215 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 36,883 psi | 67% | 2165 fps | 97.3% |
| ADI AR 2208 | <<locked>> | 82% | 33,460 psi | 61% | 2083 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 38,899 psi | 71% | 2178 fps | 98.8% |
| Alliant AR-Comp | <<locked>> | 80% | 37,753 psi | 69% | 2178 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 44,817 psi | 81% | 2339 fps | 99.4% |
| Alliant Power Pro 2000-MR | 55.1 gr | 82% | 35,375 psi | 64% | 2218 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 30,385 psi | 55% | 2057 fps | 96.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 45,542 psi | 83% | 2234 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 32,895 psi | 60% | 2106 fps | 95.5% |
| Alliant Reloder-16 | <<locked>> | 94% | 36,680 psi | 67% | 2228 fps | 95.8% |
| Alliant Reloder-17 | <<locked>> | 86% | 31,879 psi | 58% | 2152 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 35,592 psi | 65% | 2162 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 29,617 psi | 54% | 2054 fps | 96.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 40,944 psi | 74% | 2172 fps | 99.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 36,738 psi | 67% | 2192 fps | 98.9% |
| Hodgdon CFE223 | <<locked>> | 80% | 40,408 psi | 73% | 2300 fps | 97.7% |
| Hodgdon H322 | <<locked>> | 80% | 41,075 psi | 75% | 2215 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 37,492 psi | 68% | 2192 fps | 95.5% |
| Hodgdon H414 | <<locked>> | 96% | 45,571 psi | 83% | 2375 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 37,130 psi | 67% | 2175 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 31,401 psi | 57% | 2093 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 31,285 psi | 57% | 2103 fps | 96.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,628 psi | 47% | 1260 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 33,286 psi | 60% | 2087 fps | 96.8% |
| IMR 3031 | <<locked>> | 80% | 32,953 psi | 60% | 2123 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 32,793 psi | 60% | 2064 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 46,485 psi | 84% | 2205 fps | 100% |
| IMR 4831 | <<locked>> | 98% | 34,780 psi | 63% | 2185 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 33,605 psi | 61% | 2133 fps | 96.5% |
| IMR 8208 XBR | <<locked>> | 80% | 38,899 psi | 71% | 2178 fps | 98.8% |
| Lovex D073.5 | <<locked>> | 80% | 43,294 psi | 79% | 2247 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 80% | 34,969 psi | 63% | 2149 fps | 99.3% |
| Lovex S060 | <<locked>> | 80% | 37,768 psi | 69% | 2119 fps | 97.5% |
| Lovex S062 | <<locked>> | 80% | 32,590 psi | 59% | 2073 fps | 97.5% |
| Lovex S065 | <<locked>> | 94% | 40,814 psi | 74% | 2224 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 36,201 psi | 66% | 2129 fps | 98.4% |
| Norma 202 | <<locked>> | 80% | 36,201 psi | 66% | 2142 fps | 99.7% |
| Norma 203B | <<locked>> | 80% | 32,271 psi | 59% | 2096 fps | 96% |
| Norma URP | <<locked>> | 94% | 36,245 psi | 66% | 2218 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 31,749 psi | 58% | 2103 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 38,798 psi | 70% | 2175 fps | 95% |
| Ramshot Wild Boar | <<locked>> | 80% | 37,739 psi | 68% | 2195 fps | 97.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 42,076 psi | 76% | 2218 fps | 98.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,773 psi | 47% | 1289 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 43,642 psi | 79% | 2251 fps | 99.9% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 43,453 psi | 79% | 2267 fps | 95.3% |
| ReloadSwiss RS 52 | 52.1 gr | 80% | 33,678 psi | 61% | 2178 fps | 95.8% |
| ReloadSwiss RS 60 | 53 gr | 80% | 28,181 psi | 51% | 2070 fps | 96.8% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 35,476 psi | 64% | 2231 fps | 95% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 39,218 psi | 71% | 2290 fps | 95% |
| Rottweil R 901 | <<locked>> | 80% | 39,987 psi | 73% | 2172 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 80% | 34,519 psi | 63% | 2090 fps | 97.9% |
| Rottweil R 903 | <<locked>> | 80% | 27,905 psi | 51% | 2008 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 94% | 40,814 psi | 74% | 2224 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 34,969 psi | 63% | 2149 fps | 99.3% |
| Shooters World Precision | <<locked>> | 80% | 32,590 psi | 59% | 2073 fps | 97.5% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 46,108 psi | 84% | 2260 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 31,198 psi | 57% | 2093 fps | 95.2% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 46,456 psi | 84% | 2251 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 36,608 psi | 66% | 2146 fps | 95% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 35,346 psi | 64% | 2139 fps | 96.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 38,058 psi | 69% | 2100 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 31,154 psi | 57% | 1991 fps | 99.5% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 45,818 psi | 83% | 2267 fps | 95.2% |
| Somchem S321 | <<locked>> | 80% | 41,365 psi | 75% | 2244 fps | 99.4% |
| Somchem S335 | <<locked>> | 80% | 37,405 psi | 68% | 2106 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 36,216 psi | 66% | 2149 fps | 97% |
| Somchem S355 | <<locked>> | 80% | 29,051 psi | 53% | 2018 fps | 95.2% |
| Somchem S365 | <<locked>> | 88% | 26,948 psi | 49% | 2041 fps | 95.3% |
| Unknown powder | <<locked>> | 92% | 37,405 psi | 68% | 2224 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 43,178 psi | 78% | 2159 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 38,130 psi | 69% | 2103 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 33,315 psi | 60% | 2087 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 34,272 psi | 62% | 2090 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 80% | 27,572 psi | 50% | 1969 fps | 96.2% |
| Vihtavuori N160 | <<locked>> | 92% | 35,853 psi | 65% | 2175 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 38,827 psi | 70% | 2175 fps | 98.9% |
| Vihtavuori N540 | <<locked>> | 80% | 32,808 psi | 60% | 2080 fps | 99.2% |
| Vihtavuori N550 | <<locked>> | 94% | 37,057 psi | 67% | 2224 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 30,110 psi | 55% | 2028 fps | 95.1% |
| Winchester 748 | <<locked>> | 80% | 40,335 psi | 73% | 2257 fps | 99.6% |
| Winchester 760 | <<locked>> | 96% | 45,571 psi | 83% | 2375 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 42,801 psi | 78% | 2290 fps | 99% |
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 89 powders for .375 Hoelderlin loaded with the .375 | 300gr | Nosler Solid. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,474 fps; across all powders the maximum-charge window runs from 1,414 fps to 2,474 fps. Accurate 4350 gives the best case fill at 100 %, and 89 of the 89 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 63–90 %, 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, Hodgdon Hybrid 100V 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 Hoelderlin with the .375 | 300gr | Nosler Solid 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.