Load Specifications
Load data in caliber .450 N.E. 3 1/4'' with .458 | 350gr | NorthFork Bonded CoreFN bullet and 43 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Bofors RP3 and Alliant Reloder- TS 15.5.
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>> | 88% | 39,465 psi | 89% | 2559 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 38,754 psi | 88% | 2556 fps | 98.8% |
| Accurate 4064 | <<locked>> | 90% | 39,595 psi | 90% | 2592 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 84% | 39,392 psi | 89% | 2559 fps | 96.1% |
| ADI Benchmark 8208 | <<locked>> | 82% | 39,030 psi | 88% | 2526 fps | 97.3% |
| Alliant AR-Comp | <<locked>> | 84% | 40,030 psi | 90% | 2585 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 39,015 psi | 88% | 2575 fps | 97.1% |
| Alliant Reloder-17 | <<locked>> | 94% | 39,073 psi | 88% | 2644 fps | 96.1% |
| Bofors RP3 | <<locked>> | 90% | 38,406 psi | 87% | 2579 fps | 97% |
| Hodgdon BL-C2 | <<locked>> | 84% | 39,421 psi | 89% | 2589 fps | 98% |
| Hodgdon H4895 | <<locked>> | 84% | 39,639 psi | 90% | 2569 fps | 96.8% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 37,826 psi | 86% | 2582 fps | 96.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,171 psi | 77% | 1670 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 38,305 psi | 87% | 2526 fps | 96.3% |
| IMR 3031 | <<locked>> | 84% | 38,189 psi | 86% | 2579 fps | 99.9% |
| IMR 4895 | <<locked>> | 86% | 38,145 psi | 86% | 2566 fps | 95.8% |
| IMR 8208 XBR | <<locked>> | 82% | 39,030 psi | 88% | 2526 fps | 97.3% |
| Lovex D073.6 | <<locked>> | 84% | 37,376 psi | 84% | 2539 fps | 98.5% |
| Lovex S062 | <<locked>> | 88% | 39,276 psi | 89% | 2546 fps | 97.5% |
| Norma 201 | <<locked>> | 84% | 38,624 psi | 87% | 2516 fps | 97.3% |
| Norma 202 | <<locked>> | 84% | 38,537 psi | 87% | 2533 fps | 99.2% |
| Norma 203B | <<locked>> | 88% | 39,044 psi | 88% | 2575 fps | 96.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,345 psi | 78% | 1709 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 39,073 psi | 88% | 2661 fps | 98.6% |
| Rottweil R 901 | <<locked>> | 82% | 39,958 psi | 90% | 2526 fps | 99.2% |
| Rottweil R 902 | <<locked>> | 86% | 38,943 psi | 88% | 2516 fps | 97.3% |
| Rottweil R 903 | <<locked>> | 92% | 38,334 psi | 87% | 2569 fps | 96.7% |
| Shooters World Match Rifle | <<locked>> | 84% | 37,376 psi | 84% | 2539 fps | 98.5% |
| Shooters World Precision | <<locked>> | 88% | 39,276 psi | 89% | 2546 fps | 97.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 38,247 psi | 86% | 2444 fps | 99% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 40,001 psi | 90% | 2493 fps | 99.8% |
| Somchem S335 | <<locked>> | 84% | 39,914 psi | 90% | 2493 fps | 99.7% |
| Somchem S355 | <<locked>> | 92% | 39,581 psi | 89% | 2575 fps | 96.7% |
| Somchem S365ᴾ | <<locked>> | 100% | 36,463 psi | 82% | 2595 fps | 97% |
| Vihtavuori N133 | <<locked>> | 82% | 38,232 psi | 86% | 2451 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 37,565 psi | 85% | 2513 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 38,856 psi | 88% | 2520 fps | 99.4% |
| Vihtavuori N150 | <<locked>> | 92% | 37,869 psi | 86% | 2516 fps | 97.6% |
| Vihtavuori N530 | <<locked>> | 82% | 38,914 psi | 88% | 2520 fps | 97.4% |
| Vihtavuori N540 | <<locked>> | 88% | 39,856 psi | 90% | 2556 fps | 99.3% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 39,392 psi | 89% | 2543 fps | 96.3% |
| Winchester 748 | <<locked>> | 82% | 37,666 psi | 85% | 2559 fps | 97.9% |
| Winchester StaBALL Match | <<locked>> | 86% | 39,566 psi | 89% | 2582 fps | 96.8% |
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% | 30,298 psi | 68% | 2365 fps | 99.5% |
| Accurate 2520 | <<locked>> | 80% | 36,187 psi | 82% | 2500 fps | 98.3% |
| Accurate 4064 | <<locked>> | 80% | 28,674 psi | 65% | 2343 fps | 97.1% |
| ADI AR 2206H | <<locked>> | 82% | 36,956 psi | 84% | 2507 fps | 95.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 36,738 psi | 83% | 2477 fps | 96.6% |
| Alliant AR-Comp | <<locked>> | 80% | 35,070 psi | 79% | 2493 fps | 100% |
| Alliant Reloder- TS 15.5 | 92.8 gr | 86% | 34,374 psi | 78% | 2477 fps | 95.6% |
| Alliant Reloder-17 | <<locked>> | 92% | 36,608 psi | 83% | 2589 fps | 95.2% |
| Bofors RP3 | 95.4 gr | 86% | 33,649 psi | 76% | 2474 fps | 95.5% |
| Hodgdon BL-C2 | <<locked>> | 80% | 34,432 psi | 78% | 2480 fps | 96.7% |
| Hodgdon H4895 | <<locked>> | 80% | 34,983 psi | 79% | 2467 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 33,286 psi | 75% | 2474 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,324 psi | 57% | 1490 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 36,027 psi | 81% | 2477 fps | 95.6% |
| IMR 3031 | <<locked>> | 80% | 33,518 psi | 76% | 2480 fps | 99.5% |
| IMR 4895 | <<locked>> | 84% | 35,766 psi | 81% | 2513 fps | 95% |
| IMR 8208 XBR | <<locked>> | 80% | 36,738 psi | 83% | 2477 fps | 96.6% |
| Lovex D073.6 | <<locked>> | 80% | 32,634 psi | 74% | 2434 fps | 97.3% |
| Lovex S062 | <<locked>> | 82% | 32,576 psi | 74% | 2398 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 34,069 psi | 77% | 2418 fps | 95.9% |
| Norma 202 | <<locked>> | 80% | 33,939 psi | 77% | 2434 fps | 98.3% |
| Norma 203B | <<locked>> | 86% | 36,622 psi | 83% | 2523 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,382 psi | 57% | 1526 fps | 100% |
| ReloadSwiss RS 60 | 98.9 gr | 86% | 32,126 psi | 73% | 2484 fps | 96% |
| Rottweil R 901 | <<locked>> | 80% | 37,710 psi | 85% | 2480 fps | 98.8% |
| Rottweil R 902 | <<locked>> | 80% | 32,445 psi | 73% | 2372 fps | 95.3% |
| Rottweil R 903 | <<locked>> | 88% | 33,649 psi | 76% | 2464 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 32,634 psi | 74% | 2434 fps | 97.3% |
| Shooters World Precision | <<locked>> | 82% | 32,576 psi | 74% | 2398 fps | 95.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 35,940 psi | 81% | 2398 fps | 98.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 29,225 psi | 66% | 2264 fps | 97.8% |
| Somchem S335 | <<locked>> | 80% | 35,288 psi | 80% | 2402 fps | 99.1% |
| Somchem S355 | <<locked>> | 88% | 34,969 psi | 79% | 2477 fps | 95.3% |
| Somchem S365 | <<locked>> | 96% | 32,169 psi | 73% | 2487 fps | 95.2% |
| Vihtavuori N133 | <<locked>> | 80% | 35,882 psi | 81% | 2405 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 80% | 30,995 psi | 70% | 2375 fps | 99.5% |
| Vihtavuori N140 | <<locked>> | 80% | 32,068 psi | 72% | 2372 fps | 98.1% |
| Vihtavuori N150 | <<locked>> | 86% | 31,183 psi | 70% | 2369 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 36,477 psi | 82% | 2467 fps | 96.7% |
| Vihtavuori N540 | <<locked>> | 80% | 30,821 psi | 70% | 2359 fps | 97.2% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 36,941 psi | 84% | 2490 fps | 95.4% |
| Winchester 748 | <<locked>> | 80% | 35,244 psi | 80% | 2503 fps | 97.2% |
| Winchester StaBALL Match | <<locked>> | 82% | 34,548 psi | 78% | 2470 fps | 95.2% |
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 43 powders for .450 N.E. 3 1/4'' loaded with the .458 | 350gr | NorthFork Bonded CoreFN. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,661 fps; across all powders the maximum-charge window runs from 1,670 fps to 2,661 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 43 of the 43 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (305 MPa), the top charges use 77–90 %, leaving at least 10 % headroom. Hodgdon TrailBoss, ReloadSwiss RS 14, Somchem S365 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. ReloadSwiss RS 60, Bofors RP3, Alliant Reloder- TS 15.5 rank at the top here: for .450 N.E. 3 1/4'' with the .458 | 350gr | NorthFork Bonded CoreFN 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.