Load Specifications
Load data in caliber .45 Blaser with .458 | 270gr | Atomic 29 FNHP bullet and 23 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 36, Shooters World Buffalo Rifle and Lovex D060.
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% | 47,123 psi | 88% | 2559 fps | 97.1% |
| Accurate 5744 | <<locked>> | 82% | 45,861 psi | 85% | 2559 fps | 97.9% |
| Accurate No. 11 FS | <<locked>> | 86% | 47,094 psi | 88% | 2552 fps | 99.8% |
| ADI AR 2205 | <<locked>> | 88% | 46,021 psi | 86% | 2457 fps | 100% |
| ADI AR 2207ᴾ | <<locked>> | 100% | 40,132 psi | 75% | 2562 fps | 99.3% |
| Alliant Reloder-7ᴾ | <<locked>> | 100% | 43,149 psi | 80% | 2556 fps | 97.2% |
| Hodgdon LilGun | <<locked>> | 82% | 47,268 psi | 88% | 2589 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 27,586 psi | 51% | 1535 fps | 100% |
| IMR 4198ᴾ | <<locked>> | 100% | 37,434 psi | 70% | 2441 fps | 95.9% |
| IMR 4227 | <<locked>> | 96% | 47,021 psi | 88% | 2562 fps | 99.2% |
| Lovex D060 | <<locked>> | 88% | 46,122 psi | 86% | 2562 fps | 97.9% |
| Lovex D063 | <<locked>> | 88% | 46,166 psi | 86% | 2536 fps | 98.4% |
| Lovex S040 | <<locked>> | 82% | 47,834 psi | 89% | 2467 fps | 100% |
| Lovex S053 | <<locked>> | 98% | 47,036 psi | 88% | 2566 fps | 100% |
| Norma 200ᴾ | <<locked>> | 100% | 36,535 psi | 68% | 2503 fps | 96.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 26,861 psi | 50% | 1572 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 98% | 48,037 psi | 90% | 2625 fps | 99.3% |
| Shooters World Blackout | <<locked>> | 86% | 48,327 psi | 90% | 2585 fps | 98.3% |
| Shooters World Buffalo Rifle | <<locked>> | 88% | 46,122 psi | 86% | 2562 fps | 97.9% |
| Shooters World SOCOM | <<locked>> | 88% | 46,166 psi | 86% | 2536 fps | 98.4% |
| SNPE Vectan BA6 1/2ᴾ | <<locked>> | 100% | 45,600 psi | 85% | 2411 fps | 100% |
| Vihtavuori N110 | <<locked>> | 92% | 47,079 psi | 88% | 2500 fps | 100% |
| Vihtavuori N120ᴾ | <<locked>> | 100% | 40,640 psi | 76% | 2530 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>> | 92% | 38,682 psi | 72% | 2421 fps | 95.1% |
| Accurate 5744 | <<locked>> | 80% | 42,960 psi | 80% | 2507 fps | 97.3% |
| Accurate No. 11 FS | <<locked>> | 80% | 38,421 psi | 72% | 2411 fps | 99% |
| ADI AR 2205 | <<locked>> | 80% | 36,071 psi | 67% | 2290 fps | 99.6% |
| ADI AR 2207 | <<locked>> | 86% | 26,252 psi | 49% | 2251 fps | 95.5% |
| Alliant Reloder-7 | <<locked>> | 94% | 35,926 psi | 67% | 2421 fps | 95.3% |
| Hodgdon LilGun | <<locked>> | 80% | 44,280 psi | 83% | 2546 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 20,030 psi | 37% | 1371 fps | 100% |
| IMR 4198 | <<locked>> | 98% | 35,447 psi | 66% | 2398 fps | 95.2% |
| IMR 4227 | <<locked>> | 82% | 30,748 psi | 57% | 2254 fps | 95.6% |
| Lovex D060 | 46 gr | 80% | 36,419 psi | 68% | 2375 fps | 95.6% |
| Lovex D063 | <<locked>> | 80% | 35,360 psi | 66% | 2343 fps | 96.1% |
| Lovex S040 | <<locked>> | 80% | 45,034 psi | 84% | 2428 fps | 100% |
| Lovex S053 | <<locked>> | 80% | 27,847 psi | 52% | 2201 fps | 98.1% |
| Norma 200 | <<locked>> | 98% | 34,243 psi | 64% | 2457 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 19,450 psi | 36% | 1401 fps | 100% |
| ReloadSwiss RS 36 | 50.3 gr | 84% | 30,980 psi | 58% | 2310 fps | 95.6% |
| Shooters World Blackout | <<locked>> | 80% | 39,566 psi | 74% | 2438 fps | 96.6% |
| Shooters World Buffalo Rifle | 46 gr | 80% | 36,419 psi | 68% | 2375 fps | 95.6% |
| Shooters World SOCOM | <<locked>> | 80% | 35,360 psi | 66% | 2343 fps | 96.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 26,513 psi | 49% | 2083 fps | 100% |
| Vihtavuori N110 | <<locked>> | 80% | 32,982 psi | 61% | 2277 fps | 100% |
| Vihtavuori N120 | <<locked>> | 82% | 23,685 psi | 44% | 2142 fps | 95.5% |
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 .45 Blaser loaded with the .458 | 270gr | Atomic 29 FNHP. ReloadSwiss RS 36 delivers the highest muzzle velocity at 2,625 fps; across all powders the maximum-charge window runs from 1,535 fps to 2,625 fps. Accurate LT-30 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 50–90 %, 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. ReloadSwiss RS 36, Shooters World Buffalo Rifle, Lovex D060 rank at the top here: for .45 Blaser with the .458 | 270gr | Atomic 29 FNHP they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate LT-30, Alliant Reloder-10x, Baschieri & Pellagri 106 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.