Load Specifications
Load data in caliber .45 Blaser with .458 | 325gr | Woodleigh HS bullet and 24 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate 1680, ReloadSwiss RS 36 and Alliant Reloder-7.
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 1680 | <<locked>> | 94% | 46,572 psi | 87% | 2300 fps | 98.5% |
| Accurate 5744 | <<locked>> | 84% | 47,776 psi | 89% | 2302 fps | 99.2% |
| Accurate LT-30ᴾ | <<locked>> | 100% | 46,934 psi | 87% | 2283 fps | 96.1% |
| Accurate No. 11 FS | <<locked>> | 82% | 46,180 psi | 86% | 2250 fps | 100% |
| ADI AR 2205 | <<locked>> | 86% | 47,979 psi | 89% | 2199 fps | 100% |
| ADI AR 2207ᴾ | <<locked>> | 100% | 46,601 psi | 87% | 2355 fps | 100% |
| Alliant Reloder-10xᴾ | <<locked>> | 100% | 38,319 psi | 71% | 2252 fps | 97% |
| Alliant Reloder-7 | <<locked>> | 98% | 46,456 psi | 87% | 2318 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 29,327 psi | 55% | 1369 fps | 100% |
| IMR 4198ᴾ | <<locked>> | 100% | 42,757 psi | 80% | 2252 fps | 98.4% |
| IMR 4227 | <<locked>> | 92% | 46,644 psi | 87% | 2268 fps | 99.8% |
| Lovex D060 | <<locked>> | 86% | 48,080 psi | 90% | 2306 fps | 99.2% |
| Lovex D063 | <<locked>> | 86% | 48,167 psi | 90% | 2306 fps | 99.6% |
| Lovex S053 | <<locked>> | 94% | 47,224 psi | 88% | 2269 fps | 100% |
| Norma 200ᴾ | <<locked>> | 100% | 43,700 psi | 81% | 2325 fps | 98.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 29,385 psi | 55% | 1402 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 94% | 48,080 psi | 90% | 2331 fps | 99.8% |
| Shooters World Blackout | <<locked>> | 82% | 47,297 psi | 88% | 2306 fps | 99.3% |
| Shooters World Buffalo Rifle | <<locked>> | 86% | 48,080 psi | 90% | 2306 fps | 99.2% |
| Shooters World SOCOM | <<locked>> | 86% | 48,167 psi | 90% | 2306 fps | 99.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 96% | 45,905 psi | 86% | 2126 fps | 100% |
| Vihtavuori N110 | <<locked>> | 88% | 47,442 psi | 88% | 2209 fps | 100% |
| Vihtavuori N120ᴾ | <<locked>> | 100% | 43,207 psi | 81% | 2272 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 36,753 psi | 68% | 2161 fps | 96% |
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 1680 | 50.8 gr | 84% | 33,707 psi | 63% | 2090 fps | 95.7% |
| Accurate 5744 | <<locked>> | 80% | 42,525 psi | 79% | 2219 fps | 98.4% |
| Accurate LT-30 | <<locked>> | 98% | 44,266 psi | 82% | 2244 fps | 95.5% |
| Accurate No. 11 FS | <<locked>> | 80% | 43,497 psi | 81% | 2213 fps | 100% |
| ADI AR 2205 | <<locked>> | 80% | 40,132 psi | 75% | 2091 fps | 100% |
| ADI AR 2207 | <<locked>> | 80% | 25,309 psi | 47% | 1966 fps | 96.7% |
| Alliant Reloder-10x | <<locked>> | 94% | 31,618 psi | 59% | 2131 fps | 95% |
| Alliant Reloder-7 | 47.1 gr | 84% | 30,458 psi | 57% | 2040 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 21,321 psi | 40% | 1221 fps | 100% |
| IMR 4198 | <<locked>> | 88% | 30,168 psi | 56% | 2025 fps | 95% |
| IMR 4227 | <<locked>> | 80% | 32,619 psi | 61% | 2035 fps | 97.7% |
| Lovex D060 | <<locked>> | 80% | 40,292 psi | 75% | 2180 fps | 98% |
| Lovex D063 | <<locked>> | 80% | 39,668 psi | 74% | 2178 fps | 98.7% |
| Lovex S053 | <<locked>> | 80% | 31,850 psi | 59% | 2024 fps | 99.7% |
| Norma 200 | <<locked>> | 88% | 29,660 psi | 55% | 2082 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 20,929 psi | 39% | 1250 fps | 100% |
| ReloadSwiss RS 36 | 45.1 gr | 80% | 31,314 psi | 58% | 2051 fps | 97.2% |
| Shooters World Blackout | <<locked>> | 80% | 44,295 psi | 83% | 2264 fps | 99% |
| Shooters World Buffalo Rifle | <<locked>> | 80% | 40,292 psi | 75% | 2180 fps | 98% |
| Shooters World SOCOM | <<locked>> | 80% | 39,668 psi | 74% | 2178 fps | 98.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 30,139 psi | 56% | 1895 fps | 100% |
| Vihtavuori N110 | <<locked>> | 80% | 37,768 psi | 70% | 2077 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 24,105 psi | 45% | 1904 fps | 97.3% |
| Vihtavuori N130 | <<locked>> | 98% | 34,722 psi | 65% | 2126 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 24 powders for .45 Blaser loaded with the .458 | 325gr | Woodleigh HS. ADI AR 2207 delivers the highest muzzle velocity at 2,355 fps; across all powders the maximum-charge window runs from 1,369 fps to 2,355 fps. Accurate LT-30 gives the best case fill at 100 %, and 24 of the 24 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (370 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. Accurate LT-30, ADI AR 2207, Alliant Reloder-10x 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. Accurate 1680, ReloadSwiss RS 36, Alliant Reloder-7 rank at the top here: for .45 Blaser with the .458 | 325gr | Woodleigh HS 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.