Load Specifications
Load data in caliber .369 N.E. Purdey with .375 | 350gr | North Fork Semi Spitz bullet and 39 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Winchester StaBALL HD and Norma MRP.
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: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 94% | 37,666 psi | 85% | 2165 fps | 98.1% |
| Accurate 4350 | <<locked>> | 86% | 39,987 psi | 90% | 2211 fps | 99.6% |
| Alliant Reloder-16 | <<locked>> | 86% | 39,291 psi | 89% | 2218 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 82% | 38,899 psi | 88% | 2231 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 96% | 38,638 psi | 87% | 2238 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 38,406 psi | 87% | 2257 fps | 98.8% |
| Alliant Reloder-26 | <<locked>> | 94% | 39,755 psi | 90% | 2326 fps | 99.6% |
| Bofors RP7 | <<locked>> | 82% | 39,798 psi | 90% | 2133 fps | 96.9% |
| Hodgdon H414 | <<locked>> | 84% | 39,552 psi | 89% | 2205 fps | 97.6% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 38,740 psi | 88% | 2165 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 38,711 psi | 88% | 2218 fps | 96.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,998 psi | 81% | 1401 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 40,030 psi | 90% | 2159 fps | 97% |
| IMR 4831 | <<locked>> | 86% | 38,493 psi | 87% | 2172 fps | 99.4% |
| Lovex S065 | <<locked>> | 82% | 38,624 psi | 87% | 2116 fps | 98.4% |
| Lovex S070 | <<locked>> | 84% | 39,146 psi | 88% | 2146 fps | 97.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 38,522 psi | 87% | 2182 fps | 98.2% |
| Norma MRP | <<locked>> | 94% | 39,842 psi | 90% | 2290 fps | 97.6% |
| Norma URP | <<locked>> | 86% | 39,871 psi | 90% | 2205 fps | 99.5% |
| Ramshot Hunter | <<locked>> | 86% | 38,653 psi | 87% | 2198 fps | 98.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,622 psi | 83% | 1437 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 39,537 psi | 89% | 2228 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 38,885 psi | 88% | 2241 fps | 99.1% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 37,057 psi | 84% | 2260 fps | 96.5% |
| Rottweil R 905 | <<locked>> | 92% | 39,813 psi | 90% | 2218 fps | 96.2% |
| Rottweil R 907 | <<locked>> | 82% | 39,798 psi | 90% | 2133 fps | 96.9% |
| Shooters World Long Rifle | <<locked>> | 82% | 38,624 psi | 87% | 2116 fps | 98.4% |
| Shooters World SW4350 | <<locked>> | 84% | 39,146 psi | 88% | 2146 fps | 97.6% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 37,884 psi | 86% | 2070 fps | 97% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 39,450 psi | 89% | 2215 fps | 96.1% |
| Somchem S365 | <<locked>> | 88% | 38,174 psi | 86% | 2211 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 37,855 psi | 86% | 2159 fps | 96.5% |
| Vihtavuori N160 | <<locked>> | 84% | 38,972 psi | 88% | 2159 fps | 99.3% |
| Vihtavuori N165 | <<locked>> | 96% | 39,769 psi | 90% | 2185 fps | 96.5% |
| Vihtavuori N550 | <<locked>> | 84% | 38,203 psi | 86% | 2162 fps | 99.1% |
| Vihtavuori N555 | <<locked>> | 94% | 39,958 psi | 90% | 2254 fps | 99.8% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 38,247 psi | 86% | 2136 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 39,740 psi | 90% | 2208 fps | 97.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 39,175 psi | 89% | 2362 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 86% | 28,950 psi | 65% | 1991 fps | 95.2% |
| Accurate 4350 | <<locked>> | 80% | 32,561 psi | 74% | 2073 fps | 98.2% |
| Alliant Reloder-16 | <<locked>> | 80% | 32,547 psi | 74% | 2083 fps | 98.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 36,361 psi | 82% | 2185 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 23,714 psi | 54% | 1893 fps | 96.2% |
| Alliant Reloder-25 | <<locked>> | 92% | 30,052 psi | 68% | 2070 fps | 95.8% |
| Alliant Reloder-26 | 66.8 gr | 82% | 26,484 psi | 60% | 2021 fps | 95% |
| Bofors RP7 | <<locked>> | 80% | 37,391 psi | 85% | 2087 fps | 96.2% |
| Hodgdon H414 | <<locked>> | 80% | 34,664 psi | 78% | 2113 fps | 96.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,139 psi | 68% | 2001 fps | 98.9% |
| Hodgdon Superformance | <<locked>> | 80% | 33,692 psi | 76% | 2116 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,890 psi | 61% | 1250 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 35,375 psi | 80% | 2073 fps | 95.6% |
| IMR 4831 | <<locked>> | 80% | 31,575 psi | 71% | 2037 fps | 98% |
| Lovex S065 | <<locked>> | 80% | 36,332 psi | 82% | 2073 fps | 97.8% |
| Lovex S070 | <<locked>> | 80% | 34,577 psi | 78% | 2060 fps | 96.3% |
| Lovex S071 | <<locked>> | 92% | 29,849 psi | 67% | 2014 fps | 95.6% |
| Norma MRP | 69.6 gr | 88% | 32,837 psi | 74% | 2146 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 32,837 psi | 74% | 2073 fps | 98.2% |
| Ramshot Hunter | <<locked>> | 80% | 31,865 psi | 72% | 2064 fps | 96.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,340 psi | 62% | 1283 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 32,184 psi | 73% | 2090 fps | 97.8% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 31,923 psi | 72% | 2093 fps | 97.1% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 34,548 psi | 78% | 2205 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 90% | 37,347 psi | 84% | 2172 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 80% | 37,391 psi | 85% | 2087 fps | 96.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 36,332 psi | 82% | 2073 fps | 97.8% |
| Shooters World SW4350 | <<locked>> | 80% | 34,577 psi | 78% | 2060 fps | 96.3% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 35,534 psi | 80% | 2028 fps | 96.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 37,014 psi | 84% | 2169 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 29,443 psi | 67% | 2041 fps | 99.7% |
| Somchem S385 | <<locked>> | 86% | 33,373 psi | 75% | 2073 fps | 95% |
| Vihtavuori N160 | <<locked>> | 80% | 34,098 psi | 77% | 2070 fps | 98.4% |
| Vihtavuori N165 | <<locked>> | 94% | 37,202 psi | 84% | 2139 fps | 95.7% |
| Vihtavuori N550 | <<locked>> | 80% | 33,533 psi | 76% | 2073 fps | 98.1% |
| Vihtavuori N555 | <<locked>> | 80% | 25,396 psi | 57% | 1949 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,489 psi | 76% | 2047 fps | 99.6% |
| Winchester 760 | <<locked>> | 80% | 34,838 psi | 79% | 2116 fps | 96.3% |
| Winchester StaBALL HD | 64.2 gr | 82% | 22,220 psi | 50% | 1909 fps | 95.6% |
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 39 powders for .369 N.E. Purdey loaded with the .375 | 350gr | North Fork Semi Spitz. Winchester StaBALL HD delivers the highest muzzle velocity at 2,362 fps; across all powders the maximum-charge window runs from 1,401 fps to 2,362 fps. Alliant Reloder-25 gives the best case fill at 100 %, and 39 of the 39 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (305 MPa), the top charges use 81–90 %, leaving at least 10 % headroom. The 350.0 gr projectile in 0.375" calls for a 1:16.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-25, Hodgdon TrailBoss, Lovex S071 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-26, Winchester StaBALL HD, Norma MRP rank at the top here: for .369 N.E. Purdey with the .375 | 350gr | North Fork Semi Spitz 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.