Load Specifications
Load data in caliber .369 N.E. Purdey with .375 | 305gr | Hammer Claw Hammer 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% | 37,840 psi | 86% | 2343 fps | 97% |
| Accurate 4350 | <<locked>> | 86% | 37,536 psi | 85% | 2349 fps | 98.5% |
| Alliant Reloder-16 | <<locked>> | 88% | 39,682 psi | 90% | 2405 fps | 99.1% |
| Alliant Reloder-17 | <<locked>> | 84% | 39,320 psi | 89% | 2425 fps | 99.8% |
| Alliant Reloder-23 | <<locked>> | 98% | 38,754 psi | 88% | 2421 fps | 99.8% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 36,361 psi | 82% | 2382 fps | 96.9% |
| Alliant Reloder-26 | <<locked>> | 96% | 40,016 psi | 90% | 2510 fps | 98.9% |
| Hodgdon H414 | <<locked>> | 86% | 39,958 psi | 90% | 2392 fps | 96.5% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 39,088 psi | 88% | 2352 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,853 psi | 81% | 1529 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 82% | 39,450 psi | 89% | 2297 fps | 96% |
| IMR 4831 | <<locked>> | 88% | 38,711 psi | 88% | 2352 fps | 98.7% |
| Lovex S065 | <<locked>> | 84% | 39,088 psi | 88% | 2300 fps | 97.5% |
| Lovex S070 | <<locked>> | 86% | 39,581 psi | 89% | 2326 fps | 96.5% |
| Lovex S071ᴾ | <<locked>> | 100% | 36,143 psi | 82% | 2310 fps | 96.5% |
| Norma URP | <<locked>> | 86% | 37,666 psi | 85% | 2346 fps | 98.3% |
| Ramshot Hunter | <<locked>> | 88% | 39,131 psi | 88% | 2385 fps | 97.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,347 psi | 82% | 1568 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 39,146 psi | 88% | 2425 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 39,711 psi | 90% | 2415 fps | 98.7% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 39,523 psi | 89% | 2428 fps | 98.2% |
| Rottweil R 903 | <<locked>> | 82% | 39,885 psi | 90% | 2336 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 84% | 39,088 psi | 88% | 2300 fps | 97.5% |
| Shooters World SW4350 | <<locked>> | 86% | 39,581 psi | 89% | 2326 fps | 96.5% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 38,334 psi | 87% | 2247 fps | 95.9% |
| Somchem S365 | <<locked>> | 90% | 38,464 psi | 87% | 2402 fps | 100% |
| Vihtavuori N150 | <<locked>> | 82% | 38,696 psi | 87% | 2280 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 39,247 psi | 89% | 2343 fps | 98.6% |
| Vihtavuori N550 | <<locked>> | 86% | 38,580 psi | 87% | 2346 fps | 98.3% |
| Vihtavuori N555 | <<locked>> | 96% | 40,016 psi | 90% | 2441 fps | 99.4% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 38,841 psi | 88% | 2320 fps | 99.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 36,912 psi | 83% | 2493 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% | 33,112 psi | 75% | 2247 fps | 95.4% |
| Accurate 4350 | <<locked>> | 80% | 30,632 psi | 69% | 2198 fps | 96.4% |
| Alliant Reloder-16 | <<locked>> | 80% | 31,038 psi | 70% | 2211 fps | 96.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 34,389 psi | 78% | 2320 fps | 99.1% |
| Alliant Reloder-23 | <<locked>> | 84% | 25,353 psi | 57% | 2090 fps | 95.4% |
| Alliant Reloder-25 | <<locked>> | 96% | 32,242 psi | 73% | 2280 fps | 95.1% |
| Alliant Reloder-26 | 76.6 gr | 88% | 30,545 psi | 69% | 2290 fps | 95.5% |
| Hodgdon H414 | <<locked>> | 84% | 37,463 psi | 85% | 2343 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,514 psi | 64% | 2123 fps | 97.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,672 psi | 60% | 1365 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 80% | 37,115 psi | 84% | 2251 fps | 95.3% |
| IMR 4831 | <<locked>> | 80% | 29,718 psi | 67% | 2162 fps | 96.1% |
| Lovex S065 | <<locked>> | 80% | 34,664 psi | 78% | 2208 fps | 96.2% |
| Lovex S070 | <<locked>> | 82% | 34,969 psi | 79% | 2234 fps | 95% |
| Lovex S071 | <<locked>> | 98% | 33,779 psi | 76% | 2260 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 31,024 psi | 70% | 2201 fps | 96.3% |
| Ramshot Hunter | <<locked>> | 84% | 34,345 psi | 78% | 2283 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,050 psi | 61% | 1398 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 36,608 psi | 83% | 2375 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 30,371 psi | 69% | 2215 fps | 95.8% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 32,358 psi | 73% | 2267 fps | 95.7% |
| Rottweil R 903 | <<locked>> | 80% | 37,420 psi | 85% | 2293 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 34,664 psi | 78% | 2208 fps | 96.2% |
| Shooters World SW4350 | <<locked>> | 82% | 34,969 psi | 79% | 2234 fps | 95% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 35,969 psi | 81% | 2201 fps | 95.1% |
| Somchem S365 | 64.4 gr | 80% | 27,775 psi | 63% | 2162 fps | 98.4% |
| Vihtavuori N150 | <<locked>> | 80% | 36,260 psi | 82% | 2234 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 80% | 32,329 psi | 73% | 2201 fps | 96.7% |
| Vihtavuori N550 | <<locked>> | 80% | 31,792 psi | 72% | 2205 fps | 96.3% |
| Vihtavuori N555 | <<locked>> | 84% | 27,137 psi | 61% | 2156 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,952 psi | 72% | 2178 fps | 98.6% |
| Winchester StaBALL HD | 73.6 gr | 88% | 25,280 psi | 57% | 2159 fps | 95.9% |
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 58 powders for .369 N.E. Purdey loaded with the .375 | 305gr | Hammer Claw Hammer . Alliant Reloder-26 delivers the highest muzzle velocity at 2,510 fps; across all powders the maximum-charge window runs from 1,529 fps to 2,510 fps. Alliant Reloder-25 gives the best case fill at 100 %, and 58 of the 58 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (305 MPa), the top charges use 79–90 %, leaving at least 10 % headroom. The 305.0 gr projectile in 0.375" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-25, Hodgdon Retumbo, Hodgdon TrailBoss 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 | 305gr | Hammer Claw Hammer they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2209, Alliant Reloder-19, Alliant Reloder-22 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.