Load Specifications
Load data in caliber .45 Blaser with .458 | 300gr | Barnes TSX FN FB 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% | 47,601 psi | 89% | 2395 fps | 97.7% |
| Accurate 5744 | <<locked>> | 82% | 46,180 psi | 86% | 2385 fps | 98.4% |
| Accurate No. 11 FS | <<locked>> | 86% | 47,471 psi | 88% | 2382 fps | 100% |
| ADI AR 2205 | <<locked>> | 88% | 46,528 psi | 87% | 2290 fps | 100% |
| ADI AR 2207ᴾ | <<locked>> | 100% | 40,567 psi | 76% | 2392 fps | 99.6% |
| Alliant Reloder-7ᴾ | <<locked>> | 100% | 43,743 psi | 82% | 2392 fps | 97.8% |
| Hodgdon LilGun | <<locked>> | 82% | 47,819 psi | 89% | 2411 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 27,804 psi | 52% | 1421 fps | 100% |
| IMR 4198ᴾ | <<locked>> | 100% | 37,855 psi | 71% | 2283 fps | 96.7% |
| IMR 4227 | <<locked>> | 96% | 47,326 psi | 88% | 2388 fps | 99.5% |
| Lovex D060 | <<locked>> | 88% | 46,644 psi | 87% | 2395 fps | 98.4% |
| Lovex D063 | <<locked>> | 88% | 46,557 psi | 87% | 2365 fps | 98.9% |
| Lovex S040 | <<locked>> | 82% | 48,341 psi | 90% | 2293 fps | 100% |
| Lovex S053 | <<locked>> | 98% | 47,355 psi | 88% | 2388 fps | 100% |
| Norma 200ᴾ | <<locked>> | 100% | 36,912 psi | 69% | 2343 fps | 96.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 27,122 psi | 51% | 1453 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 98% | 48,472 psi | 90% | 2451 fps | 99.6% |
| Shooters World Blackout | <<locked>> | 84% | 45,542 psi | 85% | 2365 fps | 98.3% |
| Shooters World Buffalo Rifle | <<locked>> | 88% | 46,644 psi | 87% | 2395 fps | 98.4% |
| Shooters World SOCOM | <<locked>> | 88% | 46,630 psi | 87% | 2369 fps | 98.9% |
| SNPE Vectan BA6 1/2ᴾ | <<locked>> | 100% | 45,963 psi | 86% | 2241 fps | 100% |
| Vihtavuori N110 | <<locked>> | 92% | 47,587 psi | 89% | 2326 fps | 100% |
| Vihtavuori N120ᴾ | <<locked>> | 100% | 41,075 psi | 77% | 2362 fps | 100% |
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>> | 90% | 36,492 psi | 68% | 2221 fps | 95.2% |
| Accurate 5744 | <<locked>> | 80% | 43,424 psi | 81% | 2343 fps | 97.9% |
| Accurate No. 11 FS | <<locked>> | 80% | 38,943 psi | 73% | 2254 fps | 99.4% |
| ADI AR 2205 | <<locked>> | 80% | 36,535 psi | 68% | 2139 fps | 99.8% |
| ADI AR 2207 | <<locked>> | 84% | 24,889 psi | 46% | 2064 fps | 95.6% |
| Alliant Reloder-7 | <<locked>> | 92% | 34,084 psi | 64% | 2224 fps | 95.4% |
| Hodgdon LilGun | <<locked>> | 80% | 44,846 psi | 84% | 2372 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 20,175 psi | 38% | 1266 fps | 100% |
| IMR 4198 | <<locked>> | 96% | 33,707 psi | 63% | 2201 fps | 95.3% |
| IMR 4227 | <<locked>> | 80% | 29,153 psi | 54% | 2064 fps | 95.7% |
| Lovex D060 | 42.4 gr | 80% | 36,738 psi | 68% | 2221 fps | 96.3% |
| Lovex D063 | <<locked>> | 80% | 35,549 psi | 66% | 2188 fps | 96.8% |
| Lovex S040 | <<locked>> | 80% | 45,281 psi | 84% | 2254 fps | 100% |
| Lovex S053 | <<locked>> | 80% | 28,108 psi | 52% | 2054 fps | 98.6% |
| Norma 200 | <<locked>> | 96% | 32,561 psi | 61% | 2260 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 19,638 psi | 37% | 1296 fps | 100% |
| ReloadSwiss RS 36 | 45.2 gr | 82% | 29,312 psi | 55% | 2116 fps | 95.7% |
| Shooters World Blackout | <<locked>> | 80% | 39,784 psi | 74% | 2274 fps | 97.2% |
| Shooters World Buffalo Rifle | 42.4 gr | 80% | 36,738 psi | 68% | 2221 fps | 96.3% |
| Shooters World SOCOM | <<locked>> | 80% | 35,621 psi | 66% | 2192 fps | 96.8% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 26,803 psi | 50% | 1939 fps | 100% |
| Vihtavuori N110 | <<locked>> | 80% | 33,402 psi | 62% | 2119 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 22,510 psi | 42% | 1962 fps | 95.6% |
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 | Barnes TSX FN FB. ReloadSwiss RS 36 delivers the highest muzzle velocity at 2,451 fps; across all powders the maximum-charge window runs from 1,421 fps to 2,451 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 51–90 %, 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. ReloadSwiss RS 36, Shooters World Buffalo Rifle, Lovex D060 rank at the top here: for .45 Blaser with the .458 | 300gr | Barnes TSX FN FB 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.