Load Specifications
Load data in caliber .369 N.E. Purdey with .375 | 300gr | Nosler Partition bullet and 33 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Somchem S365 and Winchester StaBALL HD.
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: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 96% | 37,579 psi | 85% | 2359 fps | 96.7% |
| Accurate 4350 | <<locked>> | 88% | 39,929 psi | 90% | 2411 fps | 98.8% |
| Alliant Reloder-16 | <<locked>> | 88% | 39,392 psi | 89% | 2421 fps | 98.9% |
| Alliant Reloder-17 | <<locked>> | 84% | 39,117 psi | 88% | 2441 fps | 99.8% |
| Alliant Reloder-23 | <<locked>> | 98% | 38,508 psi | 87% | 2434 fps | 99.7% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 36,100 psi | 82% | 2395 fps | 96.6% |
| Alliant Reloder-26 | <<locked>> | 96% | 39,813 psi | 90% | 2526 fps | 98.7% |
| Hodgdon H414 | <<locked>> | 86% | 39,740 psi | 90% | 2408 fps | 96.3% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 38,754 psi | 88% | 2365 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,810 psi | 81% | 1545 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 82% | 39,247 psi | 89% | 2313 fps | 95.8% |
| IMR 4831 | <<locked>> | 88% | 38,363 psi | 87% | 2369 fps | 98.5% |
| Lovex S065 | <<locked>> | 84% | 38,841 psi | 88% | 2316 fps | 97.3% |
| Lovex S070 | <<locked>> | 86% | 39,334 psi | 89% | 2343 fps | 96.3% |
| Lovex S071ᴾ | <<locked>> | 100% | 35,723 psi | 81% | 2323 fps | 96.1% |
| Norma MRP | <<locked>> | 96% | 40,001 psi | 90% | 2490 fps | 96.1% |
| Norma URP | <<locked>> | 88% | 39,842 psi | 90% | 2408 fps | 98.7% |
| Ramshot Hunter | <<locked>> | 88% | 38,798 psi | 88% | 2398 fps | 96.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,289 psi | 82% | 1581 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 38,986 psi | 88% | 2444 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 39,479 psi | 89% | 2431 fps | 98.5% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 39,334 psi | 89% | 2444 fps | 98% |
| Rottweil R 903 | <<locked>> | 82% | 39,624 psi | 90% | 2356 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 84% | 38,841 psi | 88% | 2316 fps | 97.3% |
| Shooters World SW4350 | <<locked>> | 86% | 39,334 psi | 89% | 2343 fps | 96.3% |
| Somchem S365 | <<locked>> | 90% | 38,087 psi | 86% | 2415 fps | 100% |
| Vihtavuori N150 | <<locked>> | 82% | 38,450 psi | 87% | 2297 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 86% | 38,943 psi | 88% | 2356 fps | 98.4% |
| Vihtavuori N550 | <<locked>> | 86% | 38,392 psi | 87% | 2362 fps | 98.1% |
| Vihtavuori N555 | <<locked>> | 96% | 39,755 psi | 90% | 2457 fps | 99.3% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 38,653 psi | 87% | 2336 fps | 99.7% |
| Winchester 760 | <<locked>> | 86% | 39,900 psi | 90% | 2411 fps | 96.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 36,622 psi | 83% | 2507 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% | 32,764 psi | 74% | 2257 fps | 95.1% |
| Accurate 4350 | <<locked>> | 80% | 30,414 psi | 69% | 2215 fps | 96.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 30,850 psi | 70% | 2224 fps | 96.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 34,127 psi | 77% | 2336 fps | 99% |
| Alliant Reloder-23 | <<locked>> | 84% | 25,179 psi | 57% | 2100 fps | 95.1% |
| Alliant Reloder-25 | <<locked>> | 98% | 34,026 psi | 77% | 2343 fps | 95.7% |
| Alliant Reloder-26 | 77.2 gr | 88% | 30,342 psi | 69% | 2300 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 84% | 37,202 psi | 84% | 2356 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,239 psi | 64% | 2133 fps | 97% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,701 psi | 60% | 1378 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 80% | 36,898 psi | 83% | 2267 fps | 95% |
| IMR 4831 | <<locked>> | 80% | 29,530 psi | 67% | 2175 fps | 95.8% |
| Lovex S065 | <<locked>> | 80% | 34,360 psi | 78% | 2221 fps | 95.9% |
| Lovex S070 | <<locked>> | 84% | 36,999 psi | 84% | 2297 fps | 95.5% |
| Lovex S071 | <<locked>> | 98% | 33,562 psi | 76% | 2277 fps | 95.4% |
| Norma MRP | <<locked>> | 94% | 37,492 psi | 85% | 2434 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 30,690 psi | 69% | 2211 fps | 96% |
| Ramshot Hunter | <<locked>> | 84% | 34,185 psi | 77% | 2300 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,064 psi | 61% | 1411 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 36,332 psi | 82% | 2388 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 30,110 psi | 68% | 2228 fps | 95.5% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 32,126 psi | 73% | 2277 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 80% | 37,014 psi | 84% | 2306 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 34,360 psi | 78% | 2221 fps | 95.9% |
| Shooters World SW4350 | <<locked>> | 84% | 36,999 psi | 84% | 2297 fps | 95.5% |
| Somchem S365 | 64.9 gr | 80% | 27,572 psi | 62% | 2175 fps | 98.2% |
| Vihtavuori N150 | <<locked>> | 80% | 35,926 psi | 81% | 2247 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 80% | 32,126 psi | 73% | 2215 fps | 96.5% |
| Vihtavuori N550 | <<locked>> | 80% | 31,575 psi | 71% | 2218 fps | 96.1% |
| Vihtavuori N555 | <<locked>> | 84% | 26,919 psi | 61% | 2169 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,705 psi | 72% | 2192 fps | 98.4% |
| Winchester 760 | <<locked>> | 84% | 37,347 psi | 84% | 2359 fps | 95.5% |
| Winchester StaBALL HD | 74.1 gr | 88% | 25,077 psi | 57% | 2165 fps | 95.4% |
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 33 powders for .369 N.E. Purdey loaded with the .375 | 300gr | Nosler Partition. Alliant Reloder-26 delivers the highest muzzle velocity at 2,526 fps; across all powders the maximum-charge window runs from 1,545 fps to 2,526 fps. Alliant Reloder-25 gives the best case fill at 100 %, and 33 of the 33 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, Somchem S365, Winchester StaBALL HD rank at the top here: for .369 N.E. Purdey with the .375 | 300gr | Nosler Partition 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.