Load Specifications
Load data in caliber .369 N.E. Purdey with .376 | 256gr | Peregrine VLR-5 bullet and 41 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Somchem S365, Alliant Reloder-17 and IMR 4831.
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 2495 | <<locked>> | 82% | 37,811 psi | 85% | 2470 fps | 100% |
| Accurate 4064 | <<locked>> | 84% | 38,043 psi | 86% | 2507 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 39,131 psi | 88% | 2592 fps | 96.9% |
| ADI AR 2208 | <<locked>> | 84% | 38,334 psi | 87% | 2480 fps | 97.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 38,377 psi | 87% | 2598 fps | 96.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 37,521 psi | 85% | 2500 fps | 98.4% |
| Alliant Reloder-15 | <<locked>> | 82% | 37,956 psi | 86% | 2510 fps | 97.2% |
| Alliant Reloder-16 | <<locked>> | 94% | 39,900 psi | 90% | 2612 fps | 97.2% |
| Alliant Reloder-17 | <<locked>> | 90% | 39,755 psi | 90% | 2638 fps | 98.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 33,634 psi | 76% | 2497 fps | 96.7% |
| Bofors RP3 | <<locked>> | 86% | 39,537 psi | 89% | 2556 fps | 98.9% |
| Hodgdon H380 | <<locked>> | 84% | 38,174 psi | 86% | 2507 fps | 95.9% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 38,696 psi | 87% | 2549 fps | 98.3% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 38,406 psi | 87% | 2556 fps | 98.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,809 psi | 79% | 1657 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 37,826 psi | 86% | 2464 fps | 97.2% |
| IMR 4831 | <<locked>> | 94% | 38,000 psi | 86% | 2549 fps | 96.7% |
| IMR 4895 | <<locked>> | 82% | 38,870 psi | 88% | 2539 fps | 98% |
| Lovex S062 | <<locked>> | 84% | 39,885 psi | 90% | 2516 fps | 99.2% |
| Norma 203B | <<locked>> | 84% | 39,798 psi | 90% | 2552 fps | 98.2% |
| Norma URP | <<locked>> | 94% | 39,726 psi | 90% | 2595 fps | 96.9% |
| Ramshot Big Game | <<locked>> | 84% | 39,421 psi | 89% | 2566 fps | 97.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,085 psi | 79% | 1693 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 39,436 psi | 89% | 2605 fps | 97.6% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 39,653 psi | 90% | 2648 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 39,262 psi | 89% | 2615 fps | 96.6% |
| Rottweil R 902 | <<locked>> | 82% | 39,218 psi | 89% | 2484 fps | 99% |
| Rottweil R 903 | <<locked>> | 88% | 39,624 psi | 90% | 2549 fps | 98.7% |
| Shooters World Precision | <<locked>> | 84% | 39,885 psi | 90% | 2516 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 38,508 psi | 87% | 2552 fps | 97.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 37,826 psi | 86% | 2408 fps | 100% |
| Somchem S355 | <<locked>> | 86% | 38,029 psi | 86% | 2503 fps | 98.2% |
| Somchem S365 | <<locked>> | 96% | 37,681 psi | 85% | 2598 fps | 99.3% |
| Vihtavuori N135 | <<locked>> | 82% | 38,435 psi | 87% | 2470 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 39,450 psi | 89% | 2480 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 38,841 psi | 88% | 2493 fps | 99.3% |
| Vihtavuori N160 | <<locked>> | 92% | 39,102 psi | 88% | 2543 fps | 96.6% |
| Vihtavuori N540 | <<locked>> | 82% | 37,797 psi | 85% | 2470 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 92% | 38,276 psi | 87% | 2546 fps | 96.2% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 35,824 psi | 81% | 2572 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 39,798 psi | 90% | 2533 fps | 98.6% |
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 2495 | <<locked>> | 80% | 35,288 psi | 80% | 2421 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 33,388 psi | 75% | 2408 fps | 99.6% |
| Accurate 4350 | <<locked>> | 90% | 33,953 psi | 77% | 2480 fps | 95.2% |
| ADI AR 2208 | <<locked>> | 80% | 33,794 psi | 76% | 2379 fps | 95.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 35,868 psi | 81% | 2539 fps | 96% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 32,866 psi | 74% | 2398 fps | 97.2% |
| Alliant Reloder-15 | <<locked>> | 80% | 35,534 psi | 80% | 2457 fps | 96.5% |
| Alliant Reloder-16 | <<locked>> | 90% | 35,143 psi | 79% | 2500 fps | 95.5% |
| Alliant Reloder-17 | 69.1 gr | 82% | 30,313 psi | 69% | 2405 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 98% | 31,604 psi | 71% | 2444 fps | 95.8% |
| Bofors RP3 | <<locked>> | 80% | 32,140 psi | 73% | 2395 fps | 97.1% |
| Hodgdon H380 | <<locked>> | 82% | 35,592 psi | 80% | 2451 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 30,008 psi | 68% | 2346 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 35,998 psi | 81% | 2503 fps | 98.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,831 psi | 58% | 1480 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 35,433 psi | 80% | 2411 fps | 96.5% |
| IMR 4831 | 71.9 gr | 90% | 33,243 psi | 75% | 2444 fps | 95% |
| IMR 4895 | <<locked>> | 80% | 36,376 psi | 82% | 2487 fps | 97.4% |
| Lovex S062 | <<locked>> | 80% | 34,998 psi | 79% | 2415 fps | 98.2% |
| Norma 203B | <<locked>> | 80% | 34,925 psi | 79% | 2448 fps | 96.9% |
| Norma URP | <<locked>> | 90% | 34,838 psi | 79% | 2487 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 34,389 psi | 78% | 2457 fps | 96.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,020 psi | 59% | 1512 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 36,854 psi | 83% | 2549 fps | 96.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 30,211 psi | 68% | 2415 fps | 97.9% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 36,637 psi | 83% | 2559 fps | 95.7% |
| Rottweil R 902 | <<locked>> | 80% | 36,883 psi | 83% | 2434 fps | 98.6% |
| Rottweil R 903 | <<locked>> | 80% | 30,182 psi | 68% | 2339 fps | 96.1% |
| Shooters World Precision | <<locked>> | 80% | 34,998 psi | 79% | 2415 fps | 98.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 31,502 psi | 71% | 2392 fps | 95.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,344 psi | 75% | 2316 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 31,314 psi | 71% | 2352 fps | 96.2% |
| Somchem S365 | 68.7 gr | 86% | 27,195 psi | 61% | 2326 fps | 95.7% |
| Vihtavuori N135 | <<locked>> | 80% | 36,027 psi | 81% | 2425 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 36,927 psi | 83% | 2434 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 29,718 psi | 67% | 2293 fps | 97.1% |
| Vihtavuori N160 | <<locked>> | 90% | 36,666 psi | 83% | 2493 fps | 95.8% |
| Vihtavuori N540 | <<locked>> | 80% | 35,447 psi | 80% | 2421 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 90% | 35,853 psi | 81% | 2493 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 98% | 33,518 psi | 76% | 2516 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 30,356 psi | 69% | 2316 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 65 powders for .369 N.E. Purdey loaded with the .376 | 256gr | Peregrine VLR-5. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,648 fps; across all powders the maximum-charge window runs from 1,657 fps to 2,648 fps. Accurate 3100 gives the best case fill at 100 %, and 65 of the 65 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (305 MPa), the top charges use 68–90 %, leaving at least 10 % headroom. The 256.0 gr projectile in 0.376" calls for a 1:16.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-23, Alliant Reloder-26 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. Somchem S365, Alliant Reloder-17, IMR 4831 rank at the top here: for .369 N.E. Purdey with the .376 | 256gr | Peregrine VLR-5 they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Accurate 3100, Bofors RP7 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.