Load Specifications
Load data in caliber .375 R Hoelderlin with .375 | 300gr | Nosler AccuBond bullet and 81 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% | 46,876 psi | 90% | 2238 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 45,078 psi | 86% | 2254 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 46,267 psi | 89% | 2283 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 47,065 psi | 90% | 2329 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 47,065 psi | 90% | 2329 fps | 100% |
| Accurate 4064 | <<locked>> | 94% | 46,122 psi | 88% | 2320 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 41,104 psi | 79% | 2310 fps | 97% |
| ADI AR 2206H | <<locked>> | 88% | 45,803 psi | 88% | 2303 fps | 98.9% |
| ADI AR 2208 | <<locked>> | 94% | 46,688 psi | 89% | 2300 fps | 98.4% |
| ADI Benchmark 8208 | <<locked>> | 86% | 45,455 psi | 87% | 2270 fps | 99.5% |
| Alliant AR-Comp | <<locked>> | 86% | 44,266 psi | 85% | 2260 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 46,340 psi | 89% | 2349 fps | 99.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 44,556 psi | 85% | 2379 fps | 98% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 45,382 psi | 87% | 2316 fps | 99.4% |
| Alliant Reloder-10x | <<locked>> | 82% | 47,007 psi | 90% | 2241 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 46,427 psi | 89% | 2336 fps | 98.6% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 42,322 psi | 81% | 2316 fps | 97.2% |
| Alliant Reloder-17 | <<locked>> | 98% | 45,310 psi | 87% | 2402 fps | 99.2% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 44,846 psi | 86% | 2310 fps | 97.8% |
| Bofors RP3 | <<locked>> | 94% | 45,078 psi | 86% | 2326 fps | 99.5% |
| Hodgdon Benchmark | <<locked>> | 84% | 45,034 psi | 86% | 2221 fps | 99.7% |
| Hodgdon BL-C2 | <<locked>> | 88% | 46,296 psi | 89% | 2333 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 84% | 44,643 psi | 86% | 2359 fps | 98.4% |
| Hodgdon H322 | <<locked>> | 84% | 45,266 psi | 87% | 2264 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 46,746 psi | 90% | 2329 fps | 97.5% |
| Hodgdon H4895 | <<locked>> | 88% | 46,108 psi | 88% | 2313 fps | 99.3% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 38,725 psi | 74% | 2224 fps | 97.9% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 47,007 psi | 90% | 2375 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,447 psi | 66% | 1401 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 46,383 psi | 89% | 2303 fps | 99.2% |
| IMR 3031 | <<locked>> | 92% | 46,398 psi | 89% | 2326 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 45,469 psi | 87% | 2274 fps | 98.4% |
| IMR 4895 | <<locked>> | 90% | 44,498 psi | 85% | 2316 fps | 98.8% |
| IMR 8208 XBR | <<locked>> | 86% | 45,455 psi | 87% | 2270 fps | 99.5% |
| Lovex D073.5 | <<locked>> | 82% | 44,759 psi | 86% | 2254 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 90% | 47,065 psi | 90% | 2329 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 46,804 psi | 90% | 2251 fps | 99% |
| Lovex S062 | <<locked>> | 92% | 45,484 psi | 87% | 2287 fps | 99.6% |
| Lovex S065 | <<locked>> | 98% | 44,527 psi | 85% | 2270 fps | 96.1% |
| Norma 201 | <<locked>> | 88% | 44,730 psi | 86% | 2260 fps | 99.5% |
| Norma 202 | <<locked>> | 88% | 44,846 psi | 86% | 2270 fps | 100% |
| Norma 203B | <<locked>> | 92% | 45,600 psi | 87% | 2326 fps | 98.9% |
| Norma URPᴾ | <<locked>> | 100% | 42,105 psi | 81% | 2310 fps | 97% |
| Ramshot Big Game | <<locked>> | 92% | 45,310 psi | 87% | 2339 fps | 98.7% |
| Ramshot TAC | <<locked>> | 86% | 45,571 psi | 87% | 2274 fps | 96.5% |
| Ramshot Wild Boar | <<locked>> | 86% | 44,396 psi | 85% | 2293 fps | 98.6% |
| Ramshot X-Terminator | <<locked>> | 84% | 46,340 psi | 89% | 2267 fps | 98.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,708 psi | 66% | 1434 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 45,034 psi | 86% | 2257 fps | 99.9% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 45,324 psi | 87% | 2379 fps | 98.5% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 45,571 psi | 87% | 2411 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 41,495 psi | 79% | 2329 fps | 96.6% |
| Rottweil R 901 | <<locked>> | 86% | 46,325 psi | 89% | 2257 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 45,295 psi | 87% | 2260 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 96% | 44,976 psi | 86% | 2316 fps | 99.3% |
| Shooters World Long Rifle | <<locked>> | 98% | 44,527 psi | 85% | 2270 fps | 96.1% |
| Shooters World Match Rifle | <<locked>> | 90% | 47,065 psi | 90% | 2329 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 45,484 psi | 87% | 2287 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 46,746 psi | 90% | 2369 fps | 99% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 46,253 psi | 89% | 2293 fps | 97.3% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 47,036 psi | 90% | 2323 fps | 99% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 47,108 psi | 90% | 2224 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 46,369 psi | 89% | 2224 fps | 100% |
| Somchem S321 | <<locked>> | 84% | 45,861 psi | 88% | 2300 fps | 99.7% |
| Somchem S335 | <<locked>> | 88% | 46,064 psi | 88% | 2224 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 45,803 psi | 88% | 2293 fps | 98.8% |
| Somchem S355 | <<locked>> | 96% | 45,963 psi | 88% | 2320 fps | 99.2% |
| Somchem S365ᴾ | <<locked>> | 100% | 37,318 psi | 71% | 2267 fps | 98.9% |
| Unknown powderᴾ | <<locked>> | 100% | 46,253 psi | 89% | 2362 fps | 97.2% |
| Vihtavuori N130 | <<locked>> | 84% | 47,239 psi | 90% | 2201 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 47,021 psi | 90% | 2215 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 46,746 psi | 90% | 2277 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 45,179 psi | 87% | 2254 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 47,195 psi | 90% | 2306 fps | 99.9% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 44,309 psi | 85% | 2306 fps | 97.3% |
| Vihtavuori N530 | <<locked>> | 86% | 45,614 psi | 87% | 2267 fps | 99.6% |
| Vihtavuori N540 | <<locked>> | 92% | 46,456 psi | 89% | 2293 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 43,308 psi | 83% | 2316 fps | 97% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 45,788 psi | 88% | 2303 fps | 99.1% |
| Winchester 748 | <<locked>> | 84% | 44,802 psi | 86% | 2313 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 82% | 44,411 psi | 85% | 2300 fps | 99.1% |
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% | 39,001 psi | 75% | 2123 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 42,134 psi | 81% | 2208 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 31,488 psi | 60% | 2054 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 35,911 psi | 69% | 2152 fps | 99.3% |
| Accurate 2520 | <<locked>> | 80% | 35,911 psi | 69% | 2152 fps | 99.3% |
| Accurate 4064 | <<locked>> | 80% | 29,805 psi | 57% | 2037 fps | 98.9% |
| Accurate 4350 | <<locked>> | 96% | 35,882 psi | 69% | 2218 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 35,650 psi | 68% | 2129 fps | 96.7% |
| ADI AR 2208 | <<locked>> | 84% | 34,592 psi | 66% | 2093 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 37,637 psi | 72% | 2142 fps | 98.4% |
| Alliant AR-Comp | <<locked>> | 80% | 36,172 psi | 69% | 2142 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 43,265 psi | 83% | 2303 fps | 99% |
| Alliant Power Pro 2000-MR | 54.6 gr | 84% | 36,593 psi | 70% | 2228 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 29,211 psi | 56% | 2021 fps | 95.6% |
| Alliant Reloder-10x | <<locked>> | 80% | 44,353 psi | 85% | 2205 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 33,924 psi | 65% | 2116 fps | 95.6% |
| Alliant Reloder-16 | <<locked>> | 96% | 37,724 psi | 72% | 2231 fps | 95.8% |
| Alliant Reloder-17 | <<locked>> | 86% | 30,966 psi | 59% | 2116 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 34,447 psi | 66% | 2123 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 28,485 psi | 55% | 2018 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 39,914 psi | 76% | 2142 fps | 99.1% |
| Hodgdon BL-C2 | <<locked>> | 80% | 35,418 psi | 68% | 2156 fps | 98.5% |
| Hodgdon CFE223 | <<locked>> | 80% | 38,870 psi | 74% | 2257 fps | 97.1% |
| Hodgdon H322 | <<locked>> | 80% | 39,769 psi | 76% | 2182 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 38,595 psi | 74% | 2198 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 35,897 psi | 69% | 2139 fps | 97.4% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 32,198 psi | 62% | 2096 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 30,269 psi | 58% | 2067 fps | 95.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,614 psi | 49% | 1250 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 32,140 psi | 62% | 2047 fps | 96.1% |
| IMR 3031 | <<locked>> | 80% | 31,676 psi | 61% | 2087 fps | 99.9% |
| IMR 4064 | <<locked>> | 84% | 33,678 psi | 65% | 2067 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 32,401 psi | 62% | 2096 fps | 95.8% |
| IMR 8208 XBR | <<locked>> | 80% | 37,637 psi | 72% | 2142 fps | 98.4% |
| Lovex D073.5 | <<locked>> | 80% | 41,800 psi | 80% | 2211 fps | 99.6% |
| Lovex D073.6 | <<locked>> | 80% | 33,678 psi | 65% | 2113 fps | 98.9% |
| Lovex S060 | <<locked>> | 80% | 36,782 psi | 70% | 2083 fps | 97% |
| Lovex S062 | <<locked>> | 80% | 31,546 psi | 60% | 2037 fps | 96.9% |
| Lovex S065 | <<locked>> | 96% | 41,901 psi | 80% | 2228 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 35,143 psi | 67% | 2096 fps | 97.9% |
| Norma 202 | <<locked>> | 80% | 34,911 psi | 67% | 2106 fps | 99.5% |
| Norma 203B | <<locked>> | 80% | 31,111 psi | 60% | 2060 fps | 95.2% |
| Norma URP | <<locked>> | 96% | 37,231 psi | 71% | 2224 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 82% | 32,721 psi | 63% | 2110 fps | 95.4% |
| Ramshot TAC | <<locked>> | 82% | 40,103 psi | 77% | 2182 fps | 95.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 36,463 psi | 70% | 2156 fps | 96.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 40,828 psi | 78% | 2182 fps | 97.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,759 psi | 49% | 1280 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 42,322 psi | 81% | 2215 fps | 99.8% |
| ReloadSwiss RS 52 | 50.4 gr | 80% | 32,503 psi | 62% | 2139 fps | 95% |
| ReloadSwiss RS 60 | 51.2 gr | 80% | 27,253 psi | 52% | 2024 fps | 95.9% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 38,870 psi | 74% | 2280 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 38,798 psi | 74% | 2139 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 80% | 33,446 psi | 64% | 2057 fps | 97.4% |
| Rottweil R 903 | <<locked>> | 82% | 28,572 psi | 55% | 2014 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 96% | 41,901 psi | 80% | 2228 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 33,678 psi | 65% | 2113 fps | 98.9% |
| Shooters World Precision | <<locked>> | 80% | 31,546 psi | 60% | 2037 fps | 96.9% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 31,981 psi | 61% | 2100 fps | 95.2% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 37,797 psi | 72% | 2156 fps | 95.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 34,229 psi | 66% | 2103 fps | 96.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 36,912 psi | 71% | 2067 fps | 99.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,124 psi | 58% | 1959 fps | 99.3% |
| Somchem S321 | <<locked>> | 80% | 40,001 psi | 77% | 2205 fps | 99.1% |
| Somchem S335 | <<locked>> | 80% | 36,332 psi | 70% | 2073 fps | 99.9% |
| Somchem S341 | <<locked>> | 80% | 34,969 psi | 67% | 2110 fps | 96.4% |
| Somchem S355 | <<locked>> | 82% | 29,892 psi | 57% | 2024 fps | 95.3% |
| Somchem S365 | <<locked>> | 90% | 27,499 psi | 53% | 2041 fps | 95.3% |
| Unknown powder | <<locked>> | 94% | 38,450 psi | 74% | 2228 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 41,930 psi | 80% | 2129 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 36,941 psi | 71% | 2070 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 32,097 psi | 61% | 2051 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 33,025 psi | 63% | 2054 fps | 99.4% |
| Vihtavuori N150 | <<locked>> | 80% | 26,527 psi | 51% | 1932 fps | 95.5% |
| Vihtavuori N160 | <<locked>> | 94% | 36,854 psi | 71% | 2178 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 37,565 psi | 72% | 2139 fps | 98.4% |
| Vihtavuori N540 | <<locked>> | 80% | 31,720 psi | 61% | 2047 fps | 98.9% |
| Vihtavuori N550 | <<locked>> | 96% | 38,101 psi | 73% | 2228 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 31,140 psi | 60% | 2034 fps | 95.2% |
| Winchester 748 | <<locked>> | 80% | 38,899 psi | 75% | 2221 fps | 99.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,307 psi | 79% | 2251 fps | 98.6% |
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 R Hoelderlin loaded with the .375 | 300gr | Nosler AccuBond. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,411 fps; across all powders the maximum-charge window runs from 1,401 fps to 2,411 fps. Accurate 4350 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 (360 MPa), the top charges use 66–90 %, leaving at least 10 % headroom. The 300.0 gr projectile in 0.375" calls for a 1:16.0 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 R Hoelderlin with the .375 | 300gr | Nosler AccuBond 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.