Load Specifications
Load data in caliber .369 N.E. Purdey with .375 | 300gr | SUS-TAC Solid Flat Nose bullet and 32 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 Somchem S365.
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>> | 96% | 38,464 psi | 87% | 2382 fps | 97.1% |
| Accurate 4350 | <<locked>> | 86% | 38,058 psi | 86% | 2382 fps | 98.5% |
| Alliant Reloder-16 | <<locked>> | 86% | 37,623 psi | 85% | 2392 fps | 98.6% |
| Alliant Reloder-17 | <<locked>> | 84% | 39,900 psi | 90% | 2464 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 98% | 39,305 psi | 89% | 2457 fps | 99.8% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 36,883 psi | 83% | 2421 fps | 97.1% |
| Alliant Reloder-26 | <<locked>> | 94% | 38,000 psi | 86% | 2497 fps | 98.4% |
| Hodgdon H414 | <<locked>> | 84% | 37,956 psi | 86% | 2379 fps | 95.9% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 39,566 psi | 89% | 2385 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,897 psi | 81% | 1555 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 82% | 39,885 psi | 90% | 2333 fps | 96.1% |
| IMR 4831 | <<locked>> | 88% | 39,189 psi | 89% | 2388 fps | 98.8% |
| Lovex S065 | <<locked>> | 84% | 39,494 psi | 89% | 2333 fps | 97.5% |
| Lovex S070 | <<locked>> | 86% | 39,943 psi | 90% | 2362 fps | 96.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 36,622 psi | 83% | 2346 fps | 96.6% |
| Norma URP | <<locked>> | 86% | 38,072 psi | 86% | 2382 fps | 98.4% |
| Ramshot Hunter | <<locked>> | 88% | 39,624 psi | 90% | 2421 fps | 97.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,376 psi | 82% | 1591 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 39,610 psi | 90% | 2461 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 37,666 psi | 85% | 2402 fps | 98.2% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 39,929 psi | 90% | 2464 fps | 98.3% |
| Shooters World Long Rifle | <<locked>> | 84% | 39,494 psi | 89% | 2333 fps | 97.5% |
| Shooters World SW4350 | <<locked>> | 86% | 39,943 psi | 90% | 2362 fps | 96.6% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 38,827 psi | 88% | 2283 fps | 96% |
| Somchem S365 | <<locked>> | 90% | 38,885 psi | 88% | 2434 fps | 100% |
| Vihtavuori N150 | <<locked>> | 82% | 39,001 psi | 88% | 2310 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 39,784 psi | 90% | 2379 fps | 98.7% |
| Vihtavuori N550 | <<locked>> | 86% | 39,175 psi | 89% | 2382 fps | 98.4% |
| Vihtavuori N555 | <<locked>> | 94% | 38,058 psi | 86% | 2431 fps | 99.1% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 39,305 psi | 89% | 2356 fps | 99.8% |
| Winchester 760 | <<locked>> | 84% | 37,956 psi | 86% | 2379 fps | 95.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,391 psi | 85% | 2533 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>> | 92% | 33,605 psi | 76% | 2283 fps | 95.5% |
| Accurate 4350 | <<locked>> | 80% | 30,980 psi | 70% | 2231 fps | 96.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 31,328 psi | 71% | 2244 fps | 96.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 34,867 psi | 79% | 2359 fps | 99.2% |
| Alliant Reloder-23 | <<locked>> | 84% | 25,643 psi | 58% | 2119 fps | 95.5% |
| Alliant Reloder-25 | <<locked>> | 96% | 32,692 psi | 74% | 2316 fps | 95.3% |
| Alliant Reloder-26 | 78.5 gr | 88% | 30,879 psi | 70% | 2323 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 82% | 35,578 psi | 80% | 2329 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,834 psi | 65% | 2156 fps | 97.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,774 psi | 61% | 1388 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 80% | 37,420 psi | 85% | 2283 fps | 95.4% |
| IMR 4831 | <<locked>> | 80% | 30,182 psi | 68% | 2198 fps | 96.2% |
| Lovex S065 | <<locked>> | 80% | 34,998 psi | 79% | 2241 fps | 96.2% |
| Lovex S070 | <<locked>> | 82% | 35,244 psi | 80% | 2267 fps | 95.1% |
| Lovex S071 | <<locked>> | 96% | 32,256 psi | 73% | 2254 fps | 95% |
| Norma URP | <<locked>> | 80% | 31,357 psi | 71% | 2234 fps | 96.4% |
| Ramshot Hunter | <<locked>> | 84% | 34,751 psi | 79% | 2320 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,137 psi | 61% | 1421 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 37,101 psi | 84% | 2411 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 30,705 psi | 69% | 2247 fps | 95.9% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 32,750 psi | 74% | 2300 fps | 95.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 34,998 psi | 79% | 2241 fps | 96.2% |
| Shooters World SW4350 | <<locked>> | 82% | 35,244 psi | 80% | 2267 fps | 95.1% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 36,361 psi | 82% | 2234 fps | 95.2% |
| Somchem S365 | 66.1 gr | 80% | 28,152 psi | 64% | 2195 fps | 98.5% |
| Vihtavuori N150 | <<locked>> | 80% | 36,593 psi | 83% | 2267 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 80% | 32,648 psi | 74% | 2234 fps | 96.8% |
| Vihtavuori N550 | <<locked>> | 80% | 32,198 psi | 73% | 2238 fps | 96.4% |
| Vihtavuori N555 | <<locked>> | 84% | 27,543 psi | 62% | 2188 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,314 psi | 73% | 2215 fps | 98.6% |
| Winchester 760 | <<locked>> | 82% | 35,578 psi | 80% | 2329 fps | 95% |
| Winchester StaBALL HD | 75.5 gr | 88% | 25,628 psi | 58% | 2195 fps | 96.1% |
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 32 powders for .369 N.E. Purdey loaded with the .375 | 300gr | SUS-TAC Solid Flat Nose. Winchester StaBALL HD delivers the highest muzzle velocity at 2,533 fps; across all powders the maximum-charge window runs from 1,555 fps to 2,533 fps. Alliant Reloder-25 gives the best case fill at 100 %, and 32 of the 32 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 300.0 gr projectile in 0.375" calls for a 1:6.0 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, Somchem S365 rank at the top here: for .369 N.E. Purdey with the .375 | 300gr | SUS-TAC Solid Flat Nose 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.