Load Specifications
Load data in caliber .375 R Hoelderlin with .375 | 300gr | Nosler Solid bullet and 80 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% | 45,527 psi | 87% | 2231 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 46,601 psi | 89% | 2287 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 45,252 psi | 87% | 2283 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 44,367 psi | 85% | 2293 fps | 100% |
| Accurate 4064 | <<locked>> | 92% | 45,136 psi | 86% | 2316 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 43,062 psi | 82% | 2352 fps | 97.7% |
| ADI AR 2206H | <<locked>> | 86% | 44,483 psi | 85% | 2297 fps | 98.9% |
| ADI AR 2208 | <<locked>> | 92% | 45,440 psi | 87% | 2297 fps | 98.5% |
| ADI Benchmark 8208 | <<locked>> | 86% | 46,876 psi | 90% | 2306 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 86% | 45,934 psi | 88% | 2293 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 46,079 psi | 88% | 2421 fps | 98.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 47,181 psi | 90% | 2356 fps | 99.7% |
| Alliant Reloder-15 | <<locked>> | 90% | 45,034 psi | 86% | 2329 fps | 98.6% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 43,874 psi | 84% | 2362 fps | 97.9% |
| Alliant Reloder-17 | <<locked>> | 98% | 47,094 psi | 90% | 2448 fps | 99.6% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 46,470 psi | 89% | 2349 fps | 98.4% |
| Bofors RP3 | <<locked>> | 94% | 46,949 psi | 90% | 2365 fps | 99.7% |
| Hodgdon Benchmark | <<locked>> | 84% | 46,224 psi | 89% | 2254 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 86% | 44,875 psi | 86% | 2326 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 84% | 46,224 psi | 89% | 2398 fps | 98.8% |
| Hodgdon H322 | <<locked>> | 82% | 47,239 psi | 90% | 2306 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 45,411 psi | 87% | 2326 fps | 97.5% |
| Hodgdon H4895 | <<locked>> | 86% | 44,860 psi | 86% | 2310 fps | 99.3% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 40,074 psi | 77% | 2264 fps | 98.4% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 45,701 psi | 88% | 2372 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,621 psi | 66% | 1414 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 46,079 psi | 88% | 2313 fps | 99.3% |
| IMR 3031 | <<locked>> | 88% | 46,688 psi | 89% | 2343 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 44,831 psi | 86% | 2280 fps | 98.5% |
| IMR 4831ᴾ | <<locked>> | 100% | 41,510 psi | 80% | 2310 fps | 97.4% |
| IMR 4895 | <<locked>> | 90% | 46,093 psi | 88% | 2356 fps | 99.2% |
| IMR 8208 XBR | <<locked>> | 86% | 46,876 psi | 90% | 2306 fps | 99.7% |
| Lovex D073.5 | <<locked>> | 82% | 46,209 psi | 89% | 2290 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 88% | 45,672 psi | 87% | 2323 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 45,252 psi | 87% | 2244 fps | 98.9% |
| Lovex S062 | <<locked>> | 92% | 47,137 psi | 90% | 2323 fps | 99.8% |
| Lovex S065 | <<locked>> | 98% | 46,093 psi | 88% | 2310 fps | 96.8% |
| Norma 201 | <<locked>> | 88% | 46,209 psi | 89% | 2297 fps | 99.7% |
| Norma 202 | <<locked>> | 88% | 46,354 psi | 89% | 2303 fps | 100% |
| Norma 203B | <<locked>> | 92% | 47,166 psi | 90% | 2362 fps | 99.3% |
| Norma URPᴾ | <<locked>> | 100% | 43,526 psi | 83% | 2352 fps | 97.6% |
| Ramshot Big Game | <<locked>> | 92% | 47,079 psi | 90% | 2382 fps | 99.1% |
| Ramshot TAC | <<locked>> | 86% | 46,920 psi | 90% | 2310 fps | 97.1% |
| Ramshot Wild Boar | <<locked>> | 86% | 45,934 psi | 88% | 2329 fps | 99% |
| Ramshot X-Terminator | <<locked>> | 82% | 44,976 psi | 86% | 2264 fps | 98.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,882 psi | 67% | 1450 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 46,572 psi | 89% | 2293 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 46,267 psi | 89% | 2313 fps | 96% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 44,193 psi | 85% | 2375 fps | 98.5% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 47,195 psi | 90% | 2454 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 43,018 psi | 82% | 2372 fps | 97.3% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 44,556 psi | 85% | 2388 fps | 96.7% |
| Rottweil R 901 | <<locked>> | 84% | 45,005 psi | 86% | 2251 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 46,731 psi | 90% | 2297 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 96% | 46,572 psi | 89% | 2352 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 98% | 46,093 psi | 88% | 2310 fps | 96.8% |
| Shooters World Match Rifle | <<locked>> | 88% | 45,672 psi | 87% | 2323 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 47,137 psi | 90% | 2323 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 45,527 psi | 87% | 2365 fps | 99% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 44,715 psi | 86% | 2287 fps | 97.2% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 45,774 psi | 88% | 2320 fps | 99% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 45,527 psi | 87% | 2218 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 44,904 psi | 86% | 2218 fps | 100% |
| Somchem S321 | <<locked>> | 82% | 44,338 psi | 85% | 2290 fps | 99.7% |
| Somchem S335 | <<locked>> | 86% | 44,773 psi | 86% | 2221 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 44,338 psi | 85% | 2287 fps | 98.7% |
| Somchem S355 | <<locked>> | 94% | 44,730 psi | 86% | 2316 fps | 99.2% |
| Somchem S365ᴾ | <<locked>> | 100% | 38,856 psi | 74% | 2310 fps | 99.3% |
| Vihtavuori N130 | <<locked>> | 82% | 45,876 psi | 88% | 2198 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 45,527 psi | 87% | 2211 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 45,498 psi | 87% | 2274 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 46,847 psi | 90% | 2290 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 45,745 psi | 88% | 2300 fps | 99.9% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 46,021 psi | 88% | 2352 fps | 97.9% |
| Vihtavuori N530 | <<locked>> | 86% | 47,050 psi | 90% | 2303 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 90% | 44,976 psi | 86% | 2287 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 44,918 psi | 86% | 2356 fps | 97.6% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 47,224 psi | 90% | 2343 fps | 99.5% |
| Winchester 748 | <<locked>> | 86% | 45,774 psi | 88% | 2343 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 88% | 45,020 psi | 86% | 2323 fps | 99.3% |
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 | 77% | 2156 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 43,453 psi | 83% | 2241 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 32,677 psi | 63% | 2083 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 38,667 psi | 74% | 2201 fps | 99.7% |
| Accurate 4064 | <<locked>> | 80% | 30,951 psi | 59% | 2073 fps | 99.3% |
| Accurate 4350 | <<locked>> | 94% | 34,983 psi | 67% | 2215 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 36,883 psi | 71% | 2165 fps | 97.3% |
| ADI AR 2208 | <<locked>> | 82% | 33,460 psi | 64% | 2083 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 38,899 psi | 75% | 2178 fps | 98.8% |
| Alliant AR-Comp | <<locked>> | 80% | 37,753 psi | 72% | 2178 fps | 100% |
| Alliant Power Pro 2000-MR | 55.1 gr | 82% | 35,375 psi | 68% | 2218 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 30,385 psi | 58% | 2057 fps | 96.3% |
| Alliant Reloder-15 | <<locked>> | 80% | 32,895 psi | 63% | 2106 fps | 95.5% |
| Alliant Reloder-16 | <<locked>> | 94% | 36,680 psi | 70% | 2228 fps | 95.8% |
| Alliant Reloder-17 | 56.9 gr | 86% | 31,879 psi | 61% | 2152 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 35,592 psi | 68% | 2162 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 29,617 psi | 57% | 2054 fps | 96.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 40,944 psi | 78% | 2172 fps | 99.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 36,738 psi | 70% | 2192 fps | 98.9% |
| Hodgdon CFE223 | <<locked>> | 80% | 40,408 psi | 77% | 2300 fps | 97.7% |
| Hodgdon H322 | <<locked>> | 80% | 44,179 psi | 85% | 2264 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 37,492 psi | 72% | 2192 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 37,130 psi | 71% | 2175 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 31,401 psi | 60% | 2093 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 33,199 psi | 64% | 2146 fps | 97.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,628 psi | 49% | 1260 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 35,737 psi | 68% | 2136 fps | 97.5% |
| IMR 3031 | <<locked>> | 80% | 35,940 psi | 69% | 2178 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 32,967 psi | 63% | 2067 fps | 95.5% |
| IMR 4831 | <<locked>> | 94% | 34,432 psi | 66% | 2178 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 33,605 psi | 64% | 2133 fps | 96.5% |
| IMR 8208 XBR | <<locked>> | 80% | 38,899 psi | 75% | 2178 fps | 98.8% |
| Lovex D073.5 | <<locked>> | 80% | 43,294 psi | 83% | 2247 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 80% | 34,969 psi | 67% | 2149 fps | 99.3% |
| Lovex S060 | <<locked>> | 80% | 37,768 psi | 72% | 2119 fps | 97.5% |
| Lovex S062 | <<locked>> | 80% | 32,590 psi | 62% | 2073 fps | 97.5% |
| Lovex S065 | <<locked>> | 94% | 40,814 psi | 78% | 2224 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 36,201 psi | 69% | 2129 fps | 98.4% |
| Norma 202 | <<locked>> | 80% | 36,201 psi | 69% | 2142 fps | 99.7% |
| Norma 203B | <<locked>> | 80% | 32,271 psi | 62% | 2096 fps | 96% |
| Norma URP | <<locked>> | 94% | 36,245 psi | 69% | 2218 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 31,749 psi | 61% | 2103 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 38,798 psi | 74% | 2175 fps | 95% |
| Ramshot Wild Boar | <<locked>> | 80% | 37,739 psi | 72% | 2195 fps | 97.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 42,076 psi | 81% | 2218 fps | 98.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,773 psi | 49% | 1289 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 43,642 psi | 84% | 2251 fps | 99.9% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 43,453 psi | 83% | 2267 fps | 95.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 33,678 psi | 65% | 2178 fps | 95.8% |
| ReloadSwiss RS 60 | 53 gr | 80% | 28,181 psi | 54% | 2070 fps | 96.8% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 35,476 psi | 68% | 2231 fps | 95% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 39,218 psi | 75% | 2290 fps | 95% |
| Rottweil R 901 | <<locked>> | 80% | 39,987 psi | 77% | 2172 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 80% | 34,519 psi | 66% | 2090 fps | 97.9% |
| Rottweil R 903 | <<locked>> | 80% | 27,905 psi | 53% | 2008 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 94% | 40,814 psi | 78% | 2224 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 34,969 psi | 67% | 2149 fps | 99.3% |
| Shooters World Precision | <<locked>> | 80% | 32,590 psi | 62% | 2073 fps | 97.5% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 31,198 psi | 60% | 2093 fps | 95.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 36,608 psi | 70% | 2146 fps | 95% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 35,346 psi | 68% | 2139 fps | 96.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 38,058 psi | 73% | 2100 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 31,154 psi | 60% | 1991 fps | 99.5% |
| Somchem S321 | <<locked>> | 80% | 41,365 psi | 79% | 2244 fps | 99.4% |
| Somchem S335 | <<locked>> | 80% | 37,405 psi | 72% | 2106 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 36,216 psi | 69% | 2149 fps | 97% |
| Somchem S355 | <<locked>> | 80% | 29,051 psi | 56% | 2018 fps | 95.2% |
| Somchem S365 | <<locked>> | 88% | 26,948 psi | 52% | 2041 fps | 95.3% |
| Vihtavuori N130 | <<locked>> | 80% | 43,178 psi | 83% | 2159 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 38,130 psi | 73% | 2103 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 33,315 psi | 64% | 2087 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 34,272 psi | 66% | 2090 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 80% | 27,572 psi | 53% | 1969 fps | 96.2% |
| Vihtavuori N160 | <<locked>> | 92% | 35,853 psi | 69% | 2175 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 38,827 psi | 74% | 2175 fps | 98.9% |
| Vihtavuori N540 | <<locked>> | 80% | 32,808 psi | 63% | 2080 fps | 99.2% |
| Vihtavuori N550 | <<locked>> | 94% | 37,057 psi | 71% | 2224 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 30,110 psi | 58% | 2028 fps | 95.1% |
| Winchester 748 | <<locked>> | 80% | 37,536 psi | 72% | 2208 fps | 99.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 34,360 psi | 66% | 2139 fps | 97.3% |
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 80 powders for .375 R Hoelderlin loaded with the .375 | 300gr | Nosler Solid. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,454 fps; across all powders the maximum-charge window runs from 1,414 fps to 2,454 fps. Accurate 4350 gives the best case fill at 100 %, and 80 of the 80 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (360 MPa), the top charges use 66–90 %, 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 Reloder-17, Alliant Power Pro 2000-MR rank at the top here: for .375 R 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.