Load Specifications
Load data in caliber .460 Steyr with .458 | 528gr | Lehigh Defense Match Solid bullet and 23 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2218, Alliant Reloder-33 and Alliant Reloder-50.
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: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 8700 | <<locked>> | 98% | 47,935 psi | 89% | 2625 fps | 98.2% |
| ADI AR 2217 | <<locked>> | 88% | 48,559 psi | 90% | 2608 fps | 100% |
| ADI AR 2218 | <<locked>> | 92% | 48,211 psi | 90% | 2723 fps | 99% |
| ADI AR 2225 | <<locked>> | 90% | 48,211 psi | 90% | 2635 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 82% | 45,774 psi | 85% | 2549 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 88% | 46,398 psi | 86% | 2638 fps | 98.3% |
| Alliant Reloder-50 | <<locked>> | 92% | 46,180 psi | 86% | 2631 fps | 97.8% |
| Bofors RP30 | <<locked>> | 84% | 45,527 psi | 85% | 2566 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 86% | 46,586 psi | 87% | 2572 fps | 100% |
| Hodgdon H4831 | <<locked>> | 82% | 48,472 psi | 90% | 2556 fps | 99.8% |
| Hodgdon Retumbo | <<locked>> | 84% | 48,515 psi | 90% | 2680 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 38,116 psi | 71% | 1680 fps | 100% |
| IMR 8133 Enduron | <<locked>> | 92% | 47,398 psi | 88% | 2618 fps | 100% |
| Lovex S071 | <<locked>> | 84% | 48,341 psi | 90% | 2503 fps | 100% |
| Norma 217 | <<locked>> | 90% | 45,353 psi | 85% | 2585 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 39,189 psi | 73% | 1719 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 84% | 48,254 psi | 90% | 2661 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 86% | 47,369 psi | 88% | 2638 fps | 99.7% |
| SNPE Vectan SP 13 | <<locked>> | 96% | 46,543 psi | 87% | 2575 fps | 97.5% |
| Vihtavuori N170 | <<locked>> | 84% | 45,977 psi | 86% | 2523 fps | 96.9% |
| Vihtavuori N565 | <<locked>> | 82% | 47,021 psi | 88% | 2575 fps | 99.8% |
| Vihtavuori N568 | <<locked>> | 86% | 48,370 psi | 90% | 2644 fps | 99.5% |
| Vihtavuori N570 | <<locked>> | 86% | 46,224 psi | 86% | 2644 fps | 98% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 8700 | <<locked>> | 92% | 38,435 psi | 72% | 2441 fps | 95.5% |
| ADI AR 2217 | <<locked>> | 80% | 36,695 psi | 68% | 2385 fps | 98.8% |
| ADI AR 2218 | 192.7 gr | 86% | 38,638 psi | 72% | 2520 fps | 96.2% |
| ADI AR 2225 | <<locked>> | 80% | 33,866 psi | 63% | 2362 fps | 99.9% |
| Alliant Reloder-25 | <<locked>> | 80% | 42,699 psi | 80% | 2497 fps | 100% |
| Alliant Reloder-33 | 187.1 gr | 82% | 37,072 psi | 69% | 2444 fps | 95.5% |
| Alliant Reloder-50 | 200.2 gr | 88% | 39,827 psi | 74% | 2503 fps | 96% |
| Bofors RP30 | <<locked>> | 80% | 39,711 psi | 74% | 2454 fps | 99.4% |
| Hodgdon H1000 | <<locked>> | 80% | 37,739 psi | 70% | 2408 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 80% | 45,397 psi | 85% | 2503 fps | 99.5% |
| Hodgdon Retumbo | <<locked>> | 80% | 41,959 psi | 78% | 2566 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,645 psi | 53% | 1496 fps | 100% |
| IMR 8133 Enduron | <<locked>> | 80% | 31,386 psi | 58% | 2283 fps | 97% |
| Lovex S071 | <<locked>> | 80% | 42,496 psi | 79% | 2405 fps | 100% |
| Norma 217 | <<locked>> | 80% | 31,894 psi | 59% | 2310 fps | 99% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,472 psi | 55% | 1532 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 41,336 psi | 77% | 2543 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 80% | 37,826 psi | 70% | 2448 fps | 97.9% |
| SNPE Vectan SP 13 | <<locked>> | 92% | 40,567 psi | 76% | 2461 fps | 95.8% |
| Vihtavuori N170 | <<locked>> | 80% | 40,147 psi | 75% | 2408 fps | 95.1% |
| Vihtavuori N565 | <<locked>> | 80% | 43,932 psi | 82% | 2520 fps | 99.5% |
| Vihtavuori N568 | <<locked>> | 80% | 38,943 psi | 73% | 2464 fps | 97.8% |
| Vihtavuori N570 | <<locked>> | 80% | 37,159 psi | 69% | 2454 fps | 95.1% |
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 30 powders for .460 Steyr loaded with the .458 | 528gr | Lehigh Defense Match Solid. ADI AR 2218 delivers the highest muzzle velocity at 2,723 fps; across all powders the maximum-charge window runs from 1,680 fps to 2,723 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 30 of the 30 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (370 MPa), the top charges use 71–90 %, leaving at least 10 % headroom. The 528.0 gr projectile in 0.458" calls for a 1:14.5 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14, Vihtavuori 20N29 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. ADI AR 2218, Alliant Reloder-33, Alliant Reloder-50 rank at the top here: for .460 Steyr with the .458 | 528gr | Lehigh Defense Match Solid they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Hodgdon US 869, Lovex D100, Ramshot LRT 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.