Load Specifications
Load data in caliber .375 R Hoelderlin with .375 | 350gr | Woodleigh FMJ bullet and 85 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, ReloadSwiss RS 60 and Alliant Reloder-17.
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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Max Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 86% | 45,759 psi | 88% | 2096 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 45,600 psi | 87% | 2133 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 46,412 psi | 89% | 2093 fps | 96.3% |
| Accurate 4064 | <<locked>> | 88% | 45,788 psi | 88% | 2133 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 47,108 psi | 90% | 2228 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 84% | 46,934 psi | 90% | 2127 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 88% | 45,078 psi | 86% | 2091 fps | 99.3% |
| ADI Benchmark 8208 | <<locked>> | 82% | 46,180 psi | 88% | 2113 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 46,209 psi | 89% | 2073 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 45,498 psi | 87% | 2208 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 47,239 psi | 90% | 2146 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 44,889 psi | 86% | 2120 fps | 99.4% |
| Alliant Reloder-16 | <<locked>> | 98% | 46,514 psi | 89% | 2207 fps | 99.5% |
| Alliant Reloder-17 | <<locked>> | 94% | 46,949 psi | 90% | 2237 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 35,549 psi | 68% | 2046 fps | 98.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 38,769 psi | 74% | 2160 fps | 97.3% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 46,079 psi | 88% | 2138 fps | 99.2% |
| Bofors RP3 | <<locked>> | 90% | 47,094 psi | 90% | 2155 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 45,194 psi | 87% | 2089 fps | 96% |
| Hodgdon BL-C2 | <<locked>> | 82% | 44,744 psi | 86% | 2139 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 45,382 psi | 87% | 2124 fps | 98.7% |
| Hodgdon H414 | <<locked>> | 92% | 45,527 psi | 87% | 2176 fps | 96.9% |
| Hodgdon H4350 | <<locked>> | 96% | 47,079 psi | 90% | 2178 fps | 96.2% |
| Hodgdon H4895 | <<locked>> | 82% | 44,367 psi | 85% | 2094 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 45,629 psi | 87% | 2150 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 45,948 psi | 88% | 2188 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 44,483 psi | 85% | 2176 fps | 95.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,911 psi | 69% | 1296 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 44,759 psi | 86% | 2113 fps | 99.9% |
| IMR 3031 | <<locked>> | 86% | 45,556 psi | 87% | 2106 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 46,702 psi | 89% | 2133 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 90% | 46,789 psi | 90% | 2084 fps | 96.9% |
| IMR 4350 | <<locked>> | 96% | 44,889 psi | 86% | 2136 fps | 96.4% |
| IMR 4451 Enduron | <<locked>> | 92% | 47,079 psi | 90% | 2146 fps | 97.3% |
| IMR 4831ᴾ | <<locked>> | 100% | 43,381 psi | 83% | 2125 fps | 98.8% |
| IMR 4895 | <<locked>> | 86% | 45,992 psi | 88% | 2144 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 82% | 46,180 psi | 88% | 2090 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 45,818 psi | 88% | 2109 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 44,556 psi | 85% | 2036 fps | 99.6% |
| Lovex S062 | <<locked>> | 88% | 47,065 psi | 90% | 2114 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 46,238 psi | 89% | 2115 fps | 98.1% |
| Lovex S070 | <<locked>> | 96% | 46,470 psi | 89% | 2137 fps | 97.2% |
| Norma 201 | <<locked>> | 84% | 45,861 psi | 88% | 2085 fps | 100% |
| Norma 202 | <<locked>> | 84% | 46,137 psi | 88% | 2090 fps | 100% |
| Norma 203B | <<locked>> | 88% | 47,123 psi | 90% | 2152 fps | 99.8% |
| Norma URP | <<locked>> | 96% | 43,990 psi | 84% | 2154 fps | 98.9% |
| Ramshot Big Game | <<locked>> | 88% | 46,963 psi | 90% | 2171 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 98% | 45,977 psi | 88% | 2191 fps | 97.8% |
| Ramshot TAC | <<locked>> | 82% | 46,021 psi | 88% | 2100 fps | 98.2% |
| Ramshot Wild Boar | <<locked>> | 82% | 45,339 psi | 87% | 2115 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,201 psi | 69% | 1328 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 45,905 psi | 88% | 2110 fps | 97.4% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 44,266 psi | 85% | 2164 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 46,949 psi | 90% | 2238 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 46,586 psi | 89% | 2220 fps | 99.1% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 44,353 psi | 85% | 2195 fps | 98.3% |
| Rottweil R 902 | <<locked>> | 86% | 46,398 psi | 89% | 2086 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 47,181 psi | 90% | 2151 fps | 100% |
| Rottweil R 907 | <<locked>> | 92% | 45,194 psi | 87% | 2089 fps | 96% |
| Shooters World Long Rifle | <<locked>> | 94% | 46,238 psi | 89% | 2115 fps | 98.1% |
| Shooters World Match Rifle | <<locked>> | 84% | 45,818 psi | 88% | 2109 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 47,065 psi | 90% | 2114 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 46,470 psi | 89% | 2165 fps | 97.6% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 45,585 psi | 87% | 2158 fps | 99.7% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 44,295 psi | 85% | 2081 fps | 98.4% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 45,295 psi | 87% | 2106 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 44,962 psi | 86% | 2007 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 44,585 psi | 85% | 2010 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 46,006 psi | 88% | 2074 fps | 96.8% |
| Somchem S335 | <<locked>> | 84% | 46,905 psi | 90% | 2042 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 46,992 psi | 90% | 2120 fps | 99.7% |
| Somchem S355 | <<locked>> | 90% | 45,034 psi | 86% | 2111 fps | 99.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 45,498 psi | 87% | 2198 fps | 100% |
| Unknown powder | <<locked>> | 94% | 45,165 psi | 87% | 2159 fps | 98.6% |
| Vihtavuori N133 | <<locked>> | 84% | 44,672 psi | 86% | 1995 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 45,701 psi | 88% | 2083 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 45,963 psi | 88% | 2069 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 45,977 psi | 88% | 2100 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 45,397 psi | 87% | 2137 fps | 98.9% |
| Vihtavuori N540 | <<locked>> | 86% | 45,440 psi | 87% | 2090 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 45,788 psi | 88% | 2178 fps | 99% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 38,334 psi | 73% | 2103 fps | 98.4% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 46,644 psi | 89% | 2140 fps | 99.9% |
| Winchester 760 | <<locked>> | 92% | 45,527 psi | 87% | 2176 fps | 96.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 31,966 psi | 61% | 2038 fps | 98% |
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 2495 | <<locked>> | 80% | 37,637 psi | 72% | 1985 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 42,656 psi | 82% | 2093 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 43,555 psi | 83% | 2054 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 35,621 psi | 68% | 1985 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 29,327 psi | 56% | 1932 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 41,437 psi | 79% | 2047 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 80% | 35,273 psi | 68% | 1932 fps | 97.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 43,511 psi | 83% | 2077 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 43,294 psi | 83% | 2038 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 37,246 psi | 71% | 2068 fps | 97.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,679 psi | 66% | 1952 fps | 98.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,289 psi | 71% | 1999 fps | 98.2% |
| Alliant Reloder-16 | <<locked>> | 84% | 30,603 psi | 59% | 1915 fps | 95.2% |
| Alliant Reloder-17 | 52.3 gr | 80% | 29,747 psi | 57% | 1925 fps | 96.8% |
| Alliant Reloder-23 | <<locked>> | 92% | 27,673 psi | 53% | 1882 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 96% | 33,692 psi | 65% | 2066 fps | 95.6% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 40,306 psi | 77% | 2051 fps | 98.3% |
| Bofors RP3 | <<locked>> | 80% | 33,939 psi | 65% | 1952 fps | 98.7% |
| Bofors RP7 | <<locked>> | 90% | 42,583 psi | 82% | 2050 fps | 95.3% |
| Hodgdon BL-C2 | <<locked>> | 80% | 41,669 psi | 80% | 2096 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 35,041 psi | 67% | 1955 fps | 96.4% |
| Hodgdon H414 | <<locked>> | 88% | 39,813 psi | 76% | 2085 fps | 95.4% |
| Hodgdon H4350 | <<locked>> | 94% | 44,367 psi | 85% | 2139 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 41,785 psi | 80% | 2055 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 26,310 psi | 50% | 1799 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 35,491 psi | 68% | 2024 fps | 99.3% |
| Hodgdon Superformance | <<locked>> | 92% | 41,466 psi | 79% | 2128 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,194 psi | 50% | 1155 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 37,347 psi | 72% | 1998 fps | 99.2% |
| IMR 3031 | <<locked>> | 80% | 37,681 psi | 72% | 1997 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 34,592 psi | 66% | 1939 fps | 97.9% |
| IMR 4166 Enduron | <<locked>> | 86% | 41,597 psi | 80% | 2006 fps | 95.7% |
| IMR 4350 | <<locked>> | 92% | 39,914 psi | 76% | 2060 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 86% | 39,320 psi | 75% | 2024 fps | 95.4% |
| IMR 4831 | <<locked>> | 88% | 29,646 psi | 57% | 1892 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 38,145 psi | 73% | 2022 fps | 98.9% |
| IMR 8208 XBR | <<locked>> | 80% | 43,511 psi | 83% | 2051 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 40,103 psi | 77% | 2030 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 41,771 psi | 80% | 1996 fps | 99.3% |
| Lovex S062 | <<locked>> | 80% | 36,782 psi | 70% | 1960 fps | 99.4% |
| Lovex S065 | <<locked>> | 84% | 34,069 psi | 65% | 1916 fps | 95% |
| Lovex S070 | <<locked>> | 90% | 38,667 psi | 74% | 2017 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 40,611 psi | 78% | 2009 fps | 99.8% |
| Norma 202 | <<locked>> | 80% | 40,828 psi | 78% | 2016 fps | 100% |
| Norma 203B | <<locked>> | 80% | 36,651 psi | 70% | 1990 fps | 98.5% |
| Norma URP | <<locked>> | 84% | 30,211 psi | 58% | 1907 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 35,868 psi | 69% | 1999 fps | 98.2% |
| Ramshot Hunter | <<locked>> | 90% | 35,853 psi | 69% | 2022 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 43,236 psi | 83% | 2058 fps | 97.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 42,525 psi | 81% | 2074 fps | 99.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,455 psi | 51% | 1183 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 37,898 psi | 73% | 1984 fps | 95.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 38,580 psi | 74% | 2075 fps | 98.5% |
| ReloadSwiss RS 60 | 52.3 gr | 80% | 31,676 psi | 61% | 1976 fps | 99.5% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 31,415 psi | 60% | 1960 fps | 95.2% |
| ReloadSwiss RS 70 | 58.5 gr | 88% | 34,200 psi | 66% | 2010 fps | 95.1% |
| Rottweil R 902 | <<locked>> | 80% | 38,711 psi | 74% | 1973 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 80% | 32,126 psi | 62% | 1912 fps | 98.1% |
| Rottweil R 907 | <<locked>> | 90% | 42,583 psi | 82% | 2050 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 84% | 34,069 psi | 65% | 1916 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 40,103 psi | 77% | 2030 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 36,782 psi | 70% | 1960 fps | 99.4% |
| Shooters World SW4350 | <<locked>> | 88% | 36,463 psi | 70% | 2005 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 32,953 psi | 63% | 1949 fps | 97.5% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 41,321 psi | 79% | 2037 fps | 97.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,842 psi | 76% | 2024 fps | 99% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 42,279 psi | 81% | 1970 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,940 psi | 67% | 1873 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 40,379 psi | 77% | 1994 fps | 95.5% |
| Somchem S335 | <<locked>> | 80% | 41,698 psi | 80% | 1974 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 41,075 psi | 79% | 2036 fps | 99.1% |
| Somchem S355 | <<locked>> | 80% | 33,025 psi | 63% | 1915 fps | 98.1% |
| Somchem S365 | <<locked>> | 80% | 23,888 psi | 46% | 1786 fps | 95.5% |
| Unknown powder | <<locked>> | 84% | 33,054 psi | 63% | 1952 fps | 95.3% |
| Vihtavuori N133 | <<locked>> | 80% | 39,871 psi | 76% | 1931 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 37,985 psi | 73% | 1982 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,087 psi | 73% | 1960 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 28,239 psi | 54% | 1807 fps | 97.9% |
| Vihtavuori N160 | <<locked>> | 82% | 30,922 psi | 59% | 1891 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 80% | 37,579 psi | 72% | 1976 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 31,154 psi | 60% | 1927 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 92% | 29,312 psi | 56% | 1942 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 27,934 psi | 54% | 1812 fps | 96.1% |
| Winchester 760 | <<locked>> | 88% | 39,813 psi | 76% | 2085 fps | 95.4% |
| Winchester StaBALL HD | <<locked>> | 96% | 27,572 psi | 53% | 1939 fps | 95.8% |
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 85 powders for .375 R Hoelderlin loaded with the .375 | 350gr | Woodleigh FMJ. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,238 fps; across all powders the maximum-charge window runs from 1,296 fps to 2,238 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 85 of the 85 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (360 MPa), the top charges use 61–90 %, leaving at least 10 % headroom. The 350.0 gr projectile in 0.375" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Alliant Reloder-26, 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 70, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for .375 R Hoelderlin with the .375 | 350gr | 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.