Load Specifications
Load data in caliber .45 Blaser with .458 | 300gr | Lehigh Defense Controlled Fracturing bullet and 23 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Shooters World Buffalo Rifle, Lovex D060 and ReloadSwiss RS 36.
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>> | 98% | 45,455 psi | 85% | 2336 fps | 96.9% |
| Accurate 5744 | <<locked>> | 84% | 47,471 psi | 88% | 2379 fps | 98.2% |
| Accurate No. 11 FS | <<locked>> | 88% | 48,530 psi | 90% | 2369 fps | 99.9% |
| ADI AR 2205 | <<locked>> | 90% | 47,761 psi | 89% | 2280 fps | 100% |
| ADI AR 2207ᴾ | <<locked>> | 100% | 38,740 psi | 72% | 2339 fps | 99.2% |
| Alliant Reloder-7ᴾ | <<locked>> | 100% | 41,553 psi | 77% | 2333 fps | 97% |
| Hodgdon LilGun | <<locked>> | 82% | 45,759 psi | 85% | 2365 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 27,456 psi | 51% | 1398 fps | 100% |
| IMR 4198ᴾ | <<locked>> | 100% | 36,303 psi | 68% | 2228 fps | 95.7% |
| IMR 4227 | <<locked>> | 98% | 48,298 psi | 90% | 2375 fps | 99.4% |
| Lovex D060 | <<locked>> | 90% | 47,790 psi | 89% | 2382 fps | 98.3% |
| Lovex D063 | <<locked>> | 90% | 47,877 psi | 89% | 2359 fps | 98.8% |
| Lovex S040 | <<locked>> | 82% | 46,673 psi | 87% | 2251 fps | 100% |
| Lovex S053ᴾ | <<locked>> | 100% | 48,182 psi | 90% | 2375 fps | 100% |
| Norma 200ᴾ | <<locked>> | 100% | 34,853 psi | 65% | 2283 fps | 95.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 26,774 psi | 50% | 1430 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 98% | 46,383 psi | 86% | 2398 fps | 99.2% |
| Shooters World Blackout | <<locked>> | 86% | 46,876 psi | 87% | 2359 fps | 98.2% |
| Shooters World Buffalo Rifle | <<locked>> | 90% | 47,790 psi | 89% | 2382 fps | 98.3% |
| Shooters World SOCOM | <<locked>> | 90% | 47,877 psi | 89% | 2359 fps | 98.8% |
| SNPE Vectan BA6 1/2ᴾ | <<locked>> | 100% | 44,396 psi | 83% | 2205 fps | 100% |
| Vihtavuori N110 | <<locked>> | 94% | 48,327 psi | 90% | 2313 fps | 100% |
| Vihtavuori N120ᴾ | <<locked>> | 100% | 39,305 psi | 73% | 2310 fps | 99.8% |
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 1680 | <<locked>> | 94% | 39,943 psi | 74% | 2254 fps | 95.6% |
| Accurate 5744 | <<locked>> | 80% | 41,858 psi | 78% | 2287 fps | 97.2% |
| Accurate No. 11 FS | <<locked>> | 80% | 37,391 psi | 70% | 2205 fps | 99% |
| ADI AR 2205 | <<locked>> | 80% | 35,186 psi | 66% | 2090 fps | 99.6% |
| ADI AR 2207 | <<locked>> | 86% | 25,382 psi | 47% | 2054 fps | 95.4% |
| Alliant Reloder-7 | <<locked>> | 94% | 34,592 psi | 64% | 2211 fps | 95.1% |
| Hodgdon LilGun | <<locked>> | 80% | 42,554 psi | 79% | 2323 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 19,783 psi | 37% | 1243 fps | 100% |
| IMR 4198 | <<locked>> | 98% | 34,301 psi | 64% | 2188 fps | 95% |
| IMR 4227 | <<locked>> | 82% | 29,936 psi | 56% | 2057 fps | 95.6% |
| Lovex D060 | 40.6 gr | 80% | 35,549 psi | 66% | 2169 fps | 95.5% |
| Lovex D063 | <<locked>> | 80% | 34,272 psi | 64% | 2136 fps | 95.9% |
| Lovex S040 | <<locked>> | 80% | 43,859 psi | 82% | 2211 fps | 100% |
| Lovex S053 | <<locked>> | 80% | 27,021 psi | 50% | 2008 fps | 98% |
| Norma 200 | <<locked>> | 98% | 32,837 psi | 61% | 2244 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 19,232 psi | 36% | 1273 fps | 100% |
| ReloadSwiss RS 36 | 44.4 gr | 84% | 30,037 psi | 56% | 2110 fps | 95.5% |
| Shooters World Blackout | <<locked>> | 80% | 38,334 psi | 71% | 2221 fps | 96.5% |
| Shooters World Buffalo Rifle | 40.6 gr | 80% | 35,549 psi | 66% | 2169 fps | 95.5% |
| Shooters World SOCOM | <<locked>> | 80% | 34,272 psi | 64% | 2136 fps | 95.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 25,904 psi | 48% | 1903 fps | 100% |
| Vihtavuori N110 | <<locked>> | 80% | 31,981 psi | 60% | 2077 fps | 100% |
| Vihtavuori N120 | <<locked>> | 82% | 22,902 psi | 43% | 1955 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 23 powders for .45 Blaser loaded with the .458 | 300gr | Lehigh Defense Controlled Fracturing. ReloadSwiss RS 36 delivers the highest muzzle velocity at 2,398 fps; across all powders the maximum-charge window runs from 1,398 fps to 2,398 fps. ADI AR 2207 gives the best case fill at 100 %, and 23 of the 23 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (370 MPa), the top charges use 50–90 %, leaving at least 10 % headroom. ADI AR 2207, Alliant Reloder-7, Hodgdon TrailBoss 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. Shooters World Buffalo Rifle, Lovex D060, ReloadSwiss RS 36 rank at the top here: for .45 Blaser with the .458 | 300gr | Lehigh Defense Controlled Fracturing 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.