Load Specifications
Load data in caliber .460 Steyr with .458 | 465gr | A-Square MONO RN bullet and 21 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-50 and IMR 8133 Enduron.
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: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 8700 | <<locked>> | 96% | 47,718 psi | 89% | 2772 fps | 97.3% |
| ADI AR 2217 | <<locked>> | 86% | 47,732 psi | 89% | 2759 fps | 99.9% |
| ADI AR 2218 | <<locked>> | 90% | 47,601 psi | 89% | 2864 fps | 98% |
| ADI AR 2225 | <<locked>> | 88% | 47,703 psi | 89% | 2785 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 82% | 48,240 psi | 90% | 2749 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 86% | 46,093 psi | 86% | 2779 fps | 97.3% |
| Alliant Reloder-50 | <<locked>> | 90% | 46,412 psi | 86% | 2779 fps | 96.8% |
| Bofors RP30 | <<locked>> | 84% | 48,167 psi | 90% | 2772 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 82% | 45,397 psi | 85% | 2710 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 82% | 47,790 psi | 89% | 2831 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 38,218 psi | 71% | 1827 fps | 100% |
| IMR 8133 Enduron | <<locked>> | 90% | 47,195 psi | 88% | 2772 fps | 99.8% |
| Lovex S071 | <<locked>> | 82% | 47,834 psi | 89% | 2657 fps | 100% |
| Norma 217 | <<locked>> | 90% | 48,457 psi | 90% | 2795 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 39,349 psi | 73% | 1873 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 82% | 47,718 psi | 89% | 2812 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 84% | 46,992 psi | 88% | 2782 fps | 99.1% |
| SNPE Vectan SP 13 | <<locked>> | 94% | 46,412 psi | 86% | 2720 fps | 96.5% |
| Vihtavuori N170 | <<locked>> | 84% | 48,472 psi | 90% | 2723 fps | 96.6% |
| Vihtavuori N568 | <<locked>> | 84% | 47,790 psi | 89% | 2789 fps | 98.9% |
| Vihtavuori N570 | <<locked>> | 84% | 45,774 psi | 85% | 2785 fps | 96.8% |
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% | 41,278 psi | 77% | 2638 fps | 95.3% |
| ADI AR 2217 | <<locked>> | 80% | 38,725 psi | 72% | 2575 fps | 98.6% |
| ADI AR 2218 | 217.6 gr | 86% | 41,133 psi | 77% | 2720 fps | 95.9% |
| ADI AR 2225 | <<locked>> | 80% | 36,071 psi | 67% | 2552 fps | 99.8% |
| Alliant Reloder-25 | <<locked>> | 80% | 45,092 psi | 84% | 2697 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 82% | 39,784 psi | 74% | 2641 fps | 95.2% |
| Alliant Reloder-50 | 226 gr | 88% | 43,120 psi | 80% | 2710 fps | 95.8% |
| Bofors RP30 | <<locked>> | 80% | 42,090 psi | 78% | 2651 fps | 99.2% |
| Hodgdon H1000 | <<locked>> | 80% | 42,279 psi | 79% | 2651 fps | 99.6% |
| Hodgdon Retumbo | <<locked>> | 80% | 44,454 psi | 83% | 2769 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,761 psi | 54% | 1634 fps | 100% |
| IMR 8133 Enduron | 185.9 gr | 80% | 33,692 psi | 63% | 2470 fps | 96.6% |
| Lovex S071 | <<locked>> | 80% | 44,918 psi | 84% | 2605 fps | 100% |
| Norma 217 | <<locked>> | 80% | 34,345 psi | 64% | 2500 fps | 98.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,660 psi | 55% | 1673 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 44,208 psi | 82% | 2746 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 80% | 40,524 psi | 76% | 2648 fps | 97.7% |
| SNPE Vectan SP 13 | <<locked>> | 92% | 43,381 psi | 81% | 2661 fps | 95.6% |
| Vihtavuori N170 | <<locked>> | 82% | 45,324 psi | 84% | 2661 fps | 95.7% |
| Vihtavuori N568 | <<locked>> | 80% | 41,495 psi | 77% | 2661 fps | 97.5% |
| Vihtavuori N570 | <<locked>> | 82% | 42,598 psi | 79% | 2717 fps | 95.8% |
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 28 powders for .460 Steyr loaded with the .458 | 465gr | A-Square MONO RN. ADI AR 2218 delivers the highest muzzle velocity at 2,864 fps; across all powders the maximum-charge window runs from 1,827 fps to 2,864 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 28 of the 28 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. Hodgdon TrailBoss, ReloadSwiss RS 14 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-50, IMR 8133 Enduron rank at the top here: for .460 Steyr with the .458 | 465gr | A-Square MONO RN they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Hodgdon US 869, IMR 7977 Enduron, Lovex D100 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.