Load Specifications
Bullet Manufacturer:Sierra
Bullet Weight:350 gr
Bullet Diameter:0.375"
Bullet Length:<<locked>>
Caliber:.375 Fl. Mag. N.E. load data
Case Length (l3):2.94"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:94.1 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:23.62"
Max. allowed Pressure:47,137 psi
Recommended Twist Rate:1:13.5
Load data in caliber .375 Fl. Mag. N.E. with .375 | 350gr | Sierra HPBT MatchKinging bullet and 163 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-16, Somchem S365 and ReloadSwiss RS 70.
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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 82% | 40,988 psi | 87% | 2008 fps | 100% |
| Accurate 2495 | <<locked>> | 82% | 40,988 psi | 87% | 2008 fps | 100% |
| Accurate 2495 | <<locked>> | 82% | 41,771 psi | 89% | 2024 fps | 100% |
| Accurate 3100ᴾ | <<locked>> | 100% | 37,275 psi | 79% | 2051 fps | 96% |
| Accurate 4064 | <<locked>> | 84% | 41,133 psi | 87% | 2044 fps | 100% |
| Accurate 4064 | <<locked>> | 84% | 41,133 psi | 87% | 2044 fps | 100% |
| Accurate 4064 | <<locked>> | 84% | 41,887 psi | 89% | 2060 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 42,003 psi | 89% | 2129 fps | 98.7% |
| Accurate 4350 | <<locked>> | 94% | 42,003 psi | 89% | 2129 fps | 98.7% |
| Accurate 4350 | <<locked>> | 92% | 40,219 psi | 85% | 2106 fps | 98.5% |
| ADI AR 2208 | <<locked>> | 84% | 40,495 psi | 86% | 2021 fps | 98.7% |
| ADI AR 2208 | <<locked>> | 84% | 40,495 psi | 86% | 2021 fps | 98.7% |
| ADI AR 2208 | <<locked>> | 84% | 41,104 psi | 87% | 2037 fps | 98.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 40,582 psi | 86% | 2129 fps | 98.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 40,582 psi | 86% | 2129 fps | 98.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 41,321 psi | 88% | 2149 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 42,612 psi | 90% | 2080 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 42,612 psi | 90% | 2080 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 40,596 psi | 86% | 2057 fps | 99.7% |
| Alliant Reloder-15 | <<locked>> | 82% | 40,350 psi | 86% | 2051 fps | 98.8% |
| Alliant Reloder-15 | <<locked>> | 82% | 40,350 psi | 86% | 2051 fps | 98.8% |
| Alliant Reloder-15 | <<locked>> | 82% | 40,988 psi | 87% | 2067 fps | 99% |
| Alliant Reloder-16 | <<locked>> | 94% | 42,090 psi | 89% | 2139 fps | 98.9% |
| Alliant Reloder-16 | <<locked>> | 94% | 42,090 psi | 89% | 2139 fps | 98.9% |
| Alliant Reloder-16 | <<locked>> | 92% | 40,205 psi | 85% | 2113 fps | 98.6% |
| Alliant Reloder-17 | <<locked>> | 90% | 42,018 psi | 89% | 2162 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 90% | 42,018 psi | 89% | 2162 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 90% | 42,656 psi | 90% | 2178 fps | 99.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 35,665 psi | 76% | 2057 fps | 98.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 35,665 psi | 76% | 2057 fps | 98.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 36,376 psi | 77% | 2080 fps | 99% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 39,291 psi | 83% | 2178 fps | 97.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 39,291 psi | 83% | 2178 fps | 97.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 40,118 psi | 85% | 2201 fps | 98.1% |
| Bofors RP3 | <<locked>> | 86% | 42,119 psi | 89% | 2087 fps | 99.8% |
| Bofors RP3 | <<locked>> | 86% | 42,119 psi | 89% | 2087 fps | 99.8% |
| Bofors RP3 | <<locked>> | 84% | 40,292 psi | 85% | 2064 fps | 99.7% |
| Hodgdon H380 | <<locked>> | 84% | 40,480 psi | 86% | 2051 fps | 97.8% |
| Hodgdon H380 | <<locked>> | 84% | 40,480 psi | 86% | 2051 fps | 97.8% |
| Hodgdon H380 | <<locked>> | 84% | 41,278 psi | 88% | 2067 fps | 98.1% |
| Hodgdon H414 | <<locked>> | 92% | 42,380 psi | 90% | 2129 fps | 96.2% |
| Hodgdon H414 | <<locked>> | 92% | 42,380 psi | 90% | 2129 fps | 96.2% |
| Hodgdon H414 | <<locked>> | 90% | 40,451 psi | 86% | 2103 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 41,060 psi | 87% | 2087 fps | 99.5% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 41,060 psi | 87% | 2087 fps | 99.5% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 41,785 psi | 89% | 2103 fps | 99.7% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 40,785 psi | 87% | 2087 fps | 99.7% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 40,785 psi | 87% | 2087 fps | 99.7% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 41,655 psi | 88% | 2106 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,375 psi | 75% | 1302 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,375 psi | 75% | 1302 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,288 psi | 75% | 1306 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 42,525 psi | 90% | 2047 fps | 99.2% |
| IMR 4064 | <<locked>> | 84% | 42,525 psi | 90% | 2047 fps | 99.2% |
| IMR 4064 | <<locked>> | 82% | 40,727 psi | 86% | 2024 fps | 99% |
| IMR 4166 Enduron | <<locked>> | 82% | 42,656 psi | 90% | 2024 fps | 96% |
| IMR 4166 Enduron | <<locked>> | 82% | 42,656 psi | 90% | 2024 fps | 96% |
| IMR 4451 Enduron | <<locked>> | 88% | 42,308 psi | 90% | 2047 fps | 95.8% |
| IMR 4451 Enduron | <<locked>> | 88% | 42,308 psi | 90% | 2047 fps | 95.8% |
| IMR 4831 | <<locked>> | 94% | 40,393 psi | 86% | 2090 fps | 98.4% |
| IMR 4831 | <<locked>> | 94% | 40,393 psi | 86% | 2090 fps | 98.4% |
| IMR 4831 | <<locked>> | 94% | 41,350 psi | 88% | 2110 fps | 98.7% |
| IMR 4895 | <<locked>> | 82% | 41,292 psi | 88% | 2073 fps | 99.4% |
| IMR 4895 | <<locked>> | 82% | 41,292 psi | 88% | 2073 fps | 99.4% |
| IMR 4895 | <<locked>> | 82% | 42,018 psi | 89% | 2090 fps | 99.5% |
| Lovex S062 | <<locked>> | 84% | 42,322 psi | 90% | 2047 fps | 99.9% |
| Lovex S062 | <<locked>> | 84% | 42,322 psi | 90% | 2047 fps | 99.9% |
| Lovex S062 | <<locked>> | 82% | 40,538 psi | 86% | 2028 fps | 99.8% |
| Lovex S065 | <<locked>> | 90% | 41,524 psi | 88% | 2044 fps | 97.2% |
| Lovex S065 | <<locked>> | 90% | 41,524 psi | 88% | 2044 fps | 97.2% |
| Lovex S065 | <<locked>> | 90% | 42,250 psi | 90% | 2064 fps | 97.5% |
| Lovex S070 | <<locked>> | 92% | 41,829 psi | 89% | 2067 fps | 96.2% |
| Lovex S070 | <<locked>> | 92% | 41,829 psi | 89% | 2067 fps | 96.2% |
| Lovex S070 | <<locked>> | 92% | 42,554 psi | 90% | 2087 fps | 96.5% |
| Norma 203B | <<locked>> | 84% | 42,351 psi | 90% | 2083 fps | 99.4% |
| Norma 203B | <<locked>> | 84% | 42,351 psi | 90% | 2083 fps | 99.4% |
| Norma 203B | <<locked>> | 82% | 40,350 psi | 86% | 2057 fps | 99.3% |
| Norma URP | <<locked>> | 94% | 42,235 psi | 90% | 2126 fps | 98.6% |
| Norma URP | <<locked>> | 94% | 42,235 psi | 90% | 2126 fps | 98.6% |
| Norma URP | <<locked>> | 92% | 40,292 psi | 85% | 2103 fps | 98.3% |
| Ramshot Big Game | <<locked>> | 84% | 41,916 psi | 89% | 2100 fps | 99.3% |
| Ramshot Big Game | <<locked>> | 84% | 41,916 psi | 89% | 2100 fps | 99.3% |
| Ramshot Big Game | <<locked>> | 82% | 39,856 psi | 85% | 2073 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 94% | 41,394 psi | 88% | 2119 fps | 96.8% |
| Ramshot Hunter | <<locked>> | 94% | 41,394 psi | 88% | 2119 fps | 96.8% |
| Ramshot Hunter | <<locked>> | 94% | 41,989 psi | 89% | 2136 fps | 97.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,766 psi | 76% | 1332 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,766 psi | 76% | 1332 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,911 psi | 76% | 1342 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 41,017 psi | 87% | 2034 fps | 96.3% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 41,017 psi | 87% | 2034 fps | 96.3% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 41,771 psi | 89% | 2054 fps | 96.7% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 42,148 psi | 89% | 2133 fps | 99.2% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 42,148 psi | 89% | 2133 fps | 99.2% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 41,814 psi | 89% | 2162 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 41,814 psi | 89% | 2162 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 39,914 psi | 85% | 2139 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 41,771 psi | 89% | 2149 fps | 98.4% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 41,771 psi | 89% | 2149 fps | 98.4% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 42,656 psi | 90% | 2169 fps | 98.7% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 42,163 psi | 89% | 2159 fps | 97.9% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 42,163 psi | 89% | 2159 fps | 97.9% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 40,306 psi | 86% | 2136 fps | 97.6% |
| Rottweil R 902 | <<locked>> | 82% | 41,727 psi | 89% | 2021 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 82% | 41,727 psi | 89% | 2021 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 82% | 42,380 psi | 90% | 2034 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 88% | 42,221 psi | 90% | 2080 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 88% | 42,221 psi | 90% | 2080 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 86% | 40,408 psi | 86% | 2060 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 90% | 41,524 psi | 88% | 2044 fps | 97.2% |
| Shooters World Long Rifle | <<locked>> | 90% | 41,524 psi | 88% | 2044 fps | 97.2% |
| Shooters World Long Rifle | <<locked>> | 90% | 42,250 psi | 90% | 2064 fps | 97.5% |
| Shooters World Precision | <<locked>> | 84% | 42,322 psi | 90% | 2047 fps | 99.9% |
| Shooters World Precision | <<locked>> | 84% | 42,322 psi | 90% | 2047 fps | 99.9% |
| Shooters World Precision | <<locked>> | 82% | 40,538 psi | 86% | 2028 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 92% | 41,829 psi | 89% | 2067 fps | 96.2% |
| Shooters World SW4350 | <<locked>> | 92% | 41,829 psi | 89% | 2067 fps | 96.2% |
| Shooters World SW4350 | <<locked>> | 92% | 42,554 psi | 90% | 2087 fps | 96.5% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 40,727 psi | 86% | 2087 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 40,727 psi | 86% | 2087 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 41,452 psi | 88% | 2103 fps | 99.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 42,656 psi | 90% | 1985 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 42,656 psi | 90% | 1985 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 40,785 psi | 87% | 1965 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 41,756 psi | 89% | 2021 fps | 96% |
| Somchem S355 | <<locked>> | 86% | 40,596 psi | 86% | 2044 fps | 99.5% |
| Somchem S355 | <<locked>> | 86% | 40,596 psi | 86% | 2044 fps | 99.5% |
| Somchem S355 | <<locked>> | 86% | 41,234 psi | 87% | 2060 fps | 99.6% |
| Somchem S365 | <<locked>> | 96% | 40,219 psi | 85% | 2133 fps | 100% |
| Somchem S365 | <<locked>> | 96% | 40,219 psi | 85% | 2133 fps | 100% |
| Somchem S365 | <<locked>> | 96% | 40,857 psi | 87% | 2149 fps | 100% |
| Vihtavuori N135 | <<locked>> | 82% | 41,147 psi | 87% | 2001 fps | 100% |
| Vihtavuori N135 | <<locked>> | 82% | 41,147 psi | 87% | 2001 fps | 100% |
| Vihtavuori N135 | <<locked>> | 82% | 41,742 psi | 89% | 2014 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 41,713 psi | 88% | 2011 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 41,713 psi | 88% | 2011 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 42,569 psi | 90% | 2028 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 41,176 psi | 87% | 2031 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 88% | 41,176 psi | 87% | 2031 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 88% | 41,945 psi | 89% | 2047 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 41,640 psi | 88% | 2087 fps | 98.4% |
| Vihtavuori N160 | <<locked>> | 92% | 41,640 psi | 88% | 2087 fps | 98.4% |
| Vihtavuori N160 | <<locked>> | 92% | 42,366 psi | 90% | 2103 fps | 98.6% |
| Vihtavuori N540 | <<locked>> | 82% | 40,059 psi | 85% | 2008 fps | 100% |
| Vihtavuori N540 | <<locked>> | 82% | 40,059 psi | 85% | 2008 fps | 100% |
| Vihtavuori N540 | <<locked>> | 82% | 40,872 psi | 87% | 2024 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 40,683 psi | 86% | 2087 fps | 98.1% |
| Vihtavuori N550 | <<locked>> | 92% | 40,683 psi | 86% | 2087 fps | 98.1% |
| Vihtavuori N550 | <<locked>> | 92% | 41,553 psi | 88% | 2106 fps | 98.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 38,392 psi | 81% | 2116 fps | 98.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 38,392 psi | 81% | 2116 fps | 98.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 39,291 psi | 83% | 2139 fps | 98.9% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 41,742 psi | 89% | 2070 fps | 99.7% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 41,742 psi | 89% | 2070 fps | 99.7% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 42,438 psi | 90% | 2090 fps | 99.8% |
| Winchester 760 | <<locked>> | 92% | 42,380 psi | 90% | 2129 fps | 96.2% |
| Winchester 760 | <<locked>> | 92% | 42,380 psi | 90% | 2129 fps | 96.2% |
| Winchester 760 | <<locked>> | 90% | 40,669 psi | 86% | 2106 fps | 95.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 31,821 psi | 68% | 2054 fps | 98.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 31,821 psi | 68% | 2054 fps | 98.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 32,387 psi | 69% | 2077 fps | 98.7% |
| Winchester StaBALL Match | <<locked>> | 82% | 42,453 psi | 90% | 2080 fps | 99.7% |
| Winchester StaBALL Match | <<locked>> | 82% | 42,453 psi | 90% | 2080 fps | 99.7% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 38,334 psi | 81% | 1972 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 38,334 psi | 81% | 1972 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 39,088 psi | 83% | 1988 fps | 100% |
| Accurate 3100 | <<locked>> | 98% | 34,983 psi | 74% | 2011 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 36,230 psi | 77% | 1969 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 36,230 psi | 77% | 1969 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 36,985 psi | 78% | 1985 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 30,008 psi | 64% | 1916 fps | 95.3% |
| Accurate 4350 | <<locked>> | 84% | 30,008 psi | 64% | 1916 fps | 95.3% |
| Accurate 4350 | <<locked>> | 84% | 30,618 psi | 65% | 1932 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 35,940 psi | 76% | 1942 fps | 97.7% |
| ADI AR 2208 | <<locked>> | 80% | 35,940 psi | 76% | 1942 fps | 97.7% |
| ADI AR 2208 | <<locked>> | 80% | 36,390 psi | 77% | 1959 fps | 97.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 37,869 psi | 80% | 2080 fps | 98.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 37,869 psi | 80% | 2080 fps | 98.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 38,609 psi | 82% | 2100 fps | 98.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,244 psi | 75% | 1962 fps | 98.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,244 psi | 75% | 1962 fps | 98.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,882 psi | 76% | 1978 fps | 99.1% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,811 psi | 80% | 2008 fps | 98.3% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,811 psi | 80% | 2008 fps | 98.3% |
| Alliant Reloder-15 | <<locked>> | 80% | 38,479 psi | 82% | 2024 fps | 98.6% |
| Alliant Reloder-16 | 52.8 gr | 84% | 31,169 psi | 66% | 1929 fps | 95.5% |
| Alliant Reloder-16 | 52.8 gr | 84% | 31,169 psi | 66% | 1929 fps | 95.5% |
| Alliant Reloder-16 | 51.5 gr | 82% | 29,747 psi | 63% | 1903 fps | 95% |
| Alliant Reloder-17 | <<locked>> | 80% | 30,298 psi | 64% | 1936 fps | 97.1% |
| Alliant Reloder-17 | <<locked>> | 80% | 30,298 psi | 64% | 1936 fps | 97.1% |
| Alliant Reloder-17 | <<locked>> | 80% | 30,908 psi | 66% | 1959 fps | 97.5% |
| Alliant Reloder-23 | <<locked>> | 92% | 28,224 psi | 60% | 1896 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 92% | 28,224 psi | 60% | 1896 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 90% | 27,050 psi | 57% | 1873 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 96% | 34,403 psi | 73% | 2080 fps | 95.9% |
| Alliant Reloder-26 | <<locked>> | 96% | 34,403 psi | 73% | 2080 fps | 95.9% |
| Alliant Reloder-26 | <<locked>> | 94% | 32,735 psi | 69% | 2054 fps | 95.4% |
| Bofors RP3 | <<locked>> | 80% | 34,679 psi | 74% | 1962 fps | 98.9% |
| Bofors RP3 | <<locked>> | 80% | 34,679 psi | 74% | 1962 fps | 98.9% |
| Bofors RP3 | <<locked>> | 80% | 35,331 psi | 75% | 1982 fps | 99.1% |
| Hodgdon H380 | <<locked>> | 80% | 35,534 psi | 75% | 1962 fps | 96.5% |
| Hodgdon H380 | <<locked>> | 80% | 35,534 psi | 75% | 1962 fps | 96.5% |
| Hodgdon H380 | <<locked>> | 80% | 36,318 psi | 77% | 1985 fps | 96.9% |
| Hodgdon H414 | <<locked>> | 90% | 39,755 psi | 84% | 2083 fps | 95.4% |
| Hodgdon H414 | <<locked>> | 90% | 39,755 psi | 84% | 2083 fps | 95.4% |
| Hodgdon H414 | <<locked>> | 88% | 37,971 psi | 81% | 2060 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 26,716 psi | 57% | 1808 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 26,716 psi | 57% | 1808 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 25,657 psi | 54% | 1788 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,218 psi | 81% | 2044 fps | 99.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,218 psi | 81% | 2044 fps | 99.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,870 psi | 82% | 2060 fps | 99.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,295 psi | 56% | 1158 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,295 psi | 56% | 1158 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,368 psi | 56% | 1165 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 37,724 psi | 80% | 1969 fps | 98.3% |
| IMR 4064 | <<locked>> | 80% | 37,724 psi | 80% | 1969 fps | 98.3% |
| IMR 4064 | <<locked>> | 80% | 38,203 psi | 81% | 1982 fps | 98.5% |
| IMR 4166 Enduron | <<locked>> | 80% | 40,045 psi | 85% | 1982 fps | 95.3% |
| IMR 4166 Enduron | <<locked>> | 80% | 40,045 psi | 85% | 1982 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 86% | 39,900 psi | 85% | 2008 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 86% | 39,900 psi | 85% | 2008 fps | 95.1% |
| IMR 4831 | <<locked>> | 84% | 29,356 psi | 62% | 1883 fps | 95% |
| IMR 4831 | <<locked>> | 84% | 29,356 psi | 62% | 1883 fps | 95% |
| IMR 4831 | <<locked>> | 84% | 30,037 psi | 64% | 1906 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 38,711 psi | 82% | 2031 fps | 99% |
| IMR 4895 | <<locked>> | 80% | 38,711 psi | 82% | 2031 fps | 99% |
| IMR 4895 | <<locked>> | 80% | 39,392 psi | 84% | 2047 fps | 99.2% |
| Lovex S062 | <<locked>> | 80% | 37,536 psi | 80% | 1972 fps | 99.5% |
| Lovex S062 | <<locked>> | 80% | 37,536 psi | 80% | 1972 fps | 99.5% |
| Lovex S062 | <<locked>> | 80% | 38,043 psi | 81% | 1985 fps | 99.6% |
| Lovex S065 | <<locked>> | 84% | 34,708 psi | 74% | 1926 fps | 95.2% |
| Lovex S065 | <<locked>> | 84% | 34,708 psi | 74% | 1926 fps | 95.2% |
| Lovex S065 | <<locked>> | 84% | 35,259 psi | 75% | 1946 fps | 95.6% |
| Lovex S070 | <<locked>> | 90% | 39,450 psi | 84% | 2028 fps | 95.5% |
| Lovex S070 | <<locked>> | 90% | 39,450 psi | 84% | 2028 fps | 95.5% |
| Lovex S070 | <<locked>> | 88% | 37,724 psi | 80% | 2008 fps | 95.1% |
| Norma 203B | <<locked>> | 80% | 37,188 psi | 79% | 1998 fps | 98.7% |
| Norma 203B | <<locked>> | 80% | 37,188 psi | 79% | 1998 fps | 98.7% |
| Norma 203B | <<locked>> | 80% | 37,855 psi | 80% | 2014 fps | 98.9% |
| Norma URP | <<locked>> | 84% | 30,821 psi | 65% | 1919 fps | 95.3% |
| Norma URP | <<locked>> | 84% | 30,821 psi | 65% | 1919 fps | 95.3% |
| Norma URP | <<locked>> | 84% | 31,372 psi | 67% | 1936 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 36,506 psi | 77% | 2008 fps | 98.4% |
| Ramshot Big Game | <<locked>> | 80% | 36,506 psi | 77% | 2008 fps | 98.4% |
| Ramshot Big Game | <<locked>> | 80% | 37,260 psi | 79% | 2028 fps | 98.6% |
| Ramshot Hunter | <<locked>> | 90% | 36,405 psi | 77% | 2031 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 90% | 36,405 psi | 77% | 2031 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 90% | 37,144 psi | 79% | 2054 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,542 psi | 56% | 1188 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,542 psi | 56% | 1188 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,629 psi | 56% | 1194 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 38,508 psi | 82% | 1995 fps | 95.6% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 38,508 psi | 82% | 1995 fps | 95.6% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 36,709 psi | 78% | 1969 fps | 95.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 39,392 psi | 84% | 2087 fps | 98.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 39,392 psi | 84% | 2087 fps | 98.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 32,256 psi | 68% | 1988 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 32,256 psi | 68% | 1988 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 32,909 psi | 70% | 2008 fps | 99.7% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 32,082 psi | 68% | 1972 fps | 95.6% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 32,082 psi | 68% | 1972 fps | 95.6% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 30,603 psi | 65% | 1949 fps | 95.1% |
| ReloadSwiss RS 70 | 60.5 gr | 88% | 34,809 psi | 74% | 2021 fps | 95.5% |
| ReloadSwiss RS 70 | 60.5 gr | 88% | 34,809 psi | 74% | 2021 fps | 95.5% |
| ReloadSwiss RS 70 | 60.5 gr | 88% | 35,317 psi | 75% | 2041 fps | 95.9% |
| Rottweil R 902 | <<locked>> | 80% | 39,291 psi | 83% | 1982 fps | 99.6% |
| Rottweil R 902 | <<locked>> | 80% | 39,291 psi | 83% | 1982 fps | 99.6% |
| Rottweil R 902 | <<locked>> | 80% | 40,016 psi | 85% | 1998 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 80% | 32,677 psi | 69% | 1923 fps | 98.2% |
| Rottweil R 903 | <<locked>> | 80% | 32,677 psi | 69% | 1923 fps | 98.2% |
| Rottweil R 903 | <<locked>> | 80% | 33,344 psi | 71% | 1939 fps | 98.5% |
| Shooters World Long Rifle | <<locked>> | 84% | 34,708 psi | 74% | 1926 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 84% | 34,708 psi | 74% | 1926 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 84% | 35,259 psi | 75% | 1946 fps | 95.6% |
| Shooters World Precision | <<locked>> | 80% | 37,536 psi | 80% | 1972 fps | 99.5% |
| Shooters World Precision | <<locked>> | 80% | 37,536 psi | 80% | 1972 fps | 99.5% |
| Shooters World Precision | <<locked>> | 80% | 38,043 psi | 81% | 1985 fps | 99.6% |
| Shooters World SW4350 | <<locked>> | 90% | 39,450 psi | 84% | 2028 fps | 95.5% |
| Shooters World SW4350 | <<locked>> | 90% | 39,450 psi | 84% | 2028 fps | 95.5% |
| Shooters World SW4350 | <<locked>> | 88% | 37,724 psi | 80% | 2008 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 33,605 psi | 71% | 1959 fps | 97.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 33,605 psi | 71% | 1959 fps | 97.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,142 psi | 72% | 1975 fps | 97.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,476 psi | 75% | 1880 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,476 psi | 75% | 1880 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,955 psi | 76% | 1893 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 39,117 psi | 83% | 1982 fps | 95.3% |
| Somchem S355 | <<locked>> | 80% | 33,576 psi | 71% | 1926 fps | 98.2% |
| Somchem S355 | <<locked>> | 80% | 33,576 psi | 71% | 1926 fps | 98.2% |
| Somchem S355 | <<locked>> | 80% | 34,200 psi | 73% | 1942 fps | 98.5% |
| Somchem S365 | 51.4 gr | 80% | 24,395 psi | 52% | 1798 fps | 95.9% |
| Somchem S365 | 51.4 gr | 80% | 24,395 psi | 52% | 1798 fps | 95.9% |
| Somchem S365 | 51.4 gr | 80% | 24,860 psi | 53% | 1818 fps | 96.4% |
| Vihtavuori N135 | <<locked>> | 80% | 38,653 psi | 82% | 1965 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 38,653 psi | 82% | 1965 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,218 psi | 83% | 1978 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,262 psi | 83% | 1975 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,262 psi | 83% | 1975 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,929 psi | 85% | 1991 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 31,923 psi | 68% | 1877 fps | 98.9% |
| Vihtavuori N150 | <<locked>> | 80% | 31,923 psi | 68% | 1877 fps | 98.9% |
| Vihtavuori N150 | <<locked>> | 80% | 32,547 psi | 69% | 1893 fps | 99.1% |
| Vihtavuori N160 | <<locked>> | 84% | 32,256 psi | 68% | 1919 fps | 95.8% |
| Vihtavuori N160 | <<locked>> | 84% | 32,256 psi | 68% | 1919 fps | 95.8% |
| Vihtavuori N160 | <<locked>> | 82% | 30,763 psi | 65% | 1896 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 37,579 psi | 80% | 1969 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 37,579 psi | 80% | 1969 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 38,392 psi | 81% | 1988 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 31,473 psi | 67% | 1923 fps | 95.3% |
| Vihtavuori N550 | <<locked>> | 84% | 31,473 psi | 67% | 1923 fps | 95.3% |
| Vihtavuori N550 | <<locked>> | 84% | 32,126 psi | 68% | 1942 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 90% | 28,123 psi | 60% | 1913 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 90% | 28,123 psi | 60% | 1913 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 90% | 28,761 psi | 61% | 1932 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 28,384 psi | 60% | 1821 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 28,384 psi | 60% | 1821 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 28,906 psi | 61% | 1841 fps | 96.7% |
| Winchester 760 | <<locked>> | 90% | 39,755 psi | 84% | 2083 fps | 95.4% |
| Winchester 760 | <<locked>> | 90% | 39,755 psi | 84% | 2083 fps | 95.4% |
| Winchester 760 | <<locked>> | 88% | 37,971 psi | 81% | 2060 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 94% | 26,513 psi | 56% | 1906 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 94% | 26,513 psi | 56% | 1906 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 94% | 26,919 psi | 57% | 1929 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,813 psi | 84% | 2037 fps | 99.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,813 psi | 84% | 2037 fps | 99.4% |
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 163 powders for .375 Fl. Mag. N.E. loaded with the .375 | 350gr | Sierra HPBT MatchKinging. Alliant Reloder-26 delivers the highest muzzle velocity at 2,201 fps; across all powders the maximum-charge window runs from 1,302 fps to 2,201 fps. Accurate 3100 gives the best case fill at 100 %, and 163 of the 163 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (325 MPa), the top charges use 68–90 %, leaving at least 10 % headroom. The 350.0 gr projectile in 0.375" calls for a 1:13.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-23, 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. Alliant Reloder-16, Somchem S365, ReloadSwiss RS 70 rank at the top here: for .375 Fl. Mag. N.E. with the .375 | 350gr | Sierra HPBT MatchKinging 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.