Load Specifications
Load data in caliber .458 Win.Mag. with .458 | 400gr | Barnes Solid RN bullet and 62 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Shooters World AR Plus, Lovex D073.4 and SNPE Vectan SP 10.
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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 88% | 53,476 psi | 86% | 2228 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 49,501 psi | 79% | 2257 fps | 100% |
| Accurate 2200 | <<locked>> | 94% | 56,014 psi | 90% | 2365 fps | 95.9% |
| Accurate 2230 | <<locked>> | 94% | 56,376 psi | 90% | 2375 fps | 96.3% |
| Accurate 2460ᴾ | <<locked>> | 100% | 55,042 psi | 88% | 2349 fps | 99.4% |
| Accurate 2495ᴾ | <<locked>> | 100% | 37,376 psi | 60% | 2162 fps | 99.5% |
| Accurate 2520ᴾ | <<locked>> | 100% | 47,834 psi | 77% | 2300 fps | 98.4% |
| Accurate 4064ᴾ | <<locked>> | 100% | 34,867 psi | 56% | 2133 fps | 97% |
| Accurate LT-30 | <<locked>> | 94% | 53,940 psi | 86% | 2234 fps | 99.9% |
| Accurate LT-32 | <<locked>> | 94% | 54,476 psi | 87% | 2244 fps | 99.1% |
| ADI AR 2205 | <<locked>> | 82% | 55,405 psi | 89% | 2133 fps | 100% |
| ADI AR 2207 | <<locked>> | 92% | 53,490 psi | 86% | 2267 fps | 100% |
| ADI AR 2219 | <<locked>> | 96% | 54,969 psi | 88% | 2365 fps | 99.9% |
| ADI Benchmark 8208ᴾ | <<locked>> | 100% | 48,805 psi | 78% | 2274 fps | 96.9% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 45,788 psi | 73% | 2283 fps | 100% |
| Alliant Power Pro 1200-Rᴾ | <<locked>> | 100% | 55,608 psi | 89% | 2438 fps | 97.7% |
| Alliant Reloder-10x | <<locked>> | 98% | 53,635 psi | 86% | 2316 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 92% | 55,143 psi | 88% | 2277 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 96% | 55,550 psi | 89% | 2277 fps | 100% |
| Hodgdon Benchmarkᴾ | <<locked>> | 100% | 52,446 psi | 84% | 2277 fps | 98% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 45,672 psi | 73% | 2290 fps | 97% |
| Hodgdon H322 | <<locked>> | 98% | 52,939 psi | 85% | 2343 fps | 99.8% |
| Hodgdon H335 | <<locked>> | 98% | 54,027 psi | 87% | 2362 fps | 99.5% |
| Hodgdon H4198 | <<locked>> | 92% | 56,333 psi | 90% | 2277 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,169 psi | 52% | 1329 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 43,453 psi | 70% | 2274 fps | 99.6% |
| IMR 4198 | <<locked>> | 98% | 55,332 psi | 89% | 2290 fps | 100% |
| IMR 4227 | <<locked>> | 88% | 56,347 psi | 90% | 2231 fps | 100% |
| IMR 8208 XBRᴾ | <<locked>> | 100% | 48,805 psi | 78% | 2274 fps | 96.9% |
| Lovex D060 | <<locked>> | 82% | 55,854 psi | 90% | 2264 fps | 100% |
| Lovex D073.4 | <<locked>> | 92% | 53,011 psi | 85% | 2329 fps | 98.9% |
| Lovex D073.5ᴾ | <<locked>> | 100% | 55,390 psi | 89% | 2356 fps | 98.7% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 42,279 psi | 68% | 2234 fps | 97.5% |
| Lovex S053 | <<locked>> | 88% | 54,752 psi | 88% | 2185 fps | 100% |
| Norma 200 | <<locked>> | 94% | 53,867 psi | 86% | 2300 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 44,454 psi | 71% | 2215 fps | 96.1% |
| Norma 202ᴾ | <<locked>> | 100% | 44,193 psi | 71% | 2234 fps | 98.4% |
| Ramshot X-Terminatorᴾ | <<locked>> | 100% | 54,955 psi | 88% | 2323 fps | 96.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,923 psi | 51% | 1362 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 88% | 56,188 psi | 90% | 2267 fps | 100% |
| ReloadSwiss RS 40ᴾ | <<locked>> | 100% | 56,028 psi | 90% | 2362 fps | 99.1% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 48,515 psi | 78% | 2260 fps | 98.8% |
| Shooters World AR Plus | <<locked>> | 92% | 53,011 psi | 85% | 2329 fps | 98.9% |
| Shooters World Buffalo Rifle | <<locked>> | 82% | 55,854 psi | 90% | 2264 fps | 100% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 42,279 psi | 68% | 2234 fps | 97.5% |
| Shooters World Tactical Rifle | <<locked>> | 96% | 53,983 psi | 87% | 2293 fps | 97.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 92% | 55,303 psi | 89% | 2057 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 96% | 55,332 psi | 89% | 2372 fps | 99.6% |
| SNPE Vectan SP 3 | <<locked>> | 98% | 54,766 psi | 88% | 2323 fps | 100% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 48,211 psi | 77% | 2198 fps | 98.8% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 38,566 psi | 62% | 2077 fps | 98% |
| Somchem S321ᴾ | <<locked>> | 100% | 53,243 psi | 85% | 2356 fps | 97.9% |
| Somchem S335ᴾ | <<locked>> | 100% | 46,296 psi | 74% | 2201 fps | 99.2% |
| Vihtavuori N110 | <<locked>> | 82% | 53,882 psi | 86% | 2096 fps | 100% |
| Vihtavuori N120 | <<locked>> | 92% | 53,592 psi | 86% | 2224 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 54,244 psi | 87% | 2270 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 47,210 psi | 76% | 2201 fps | 99.9% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 39,189 psi | 63% | 2169 fps | 99.6% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 41,945 psi | 67% | 2178 fps | 98.2% |
| Vihtavuori N530ᴾ | <<locked>> | 100% | 49,530 psi | 79% | 2274 fps | 97% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 40,466 psi | 65% | 2172 fps | 97.4% |
| Winchester 748ᴾ | <<locked>> | 100% | 47,224 psi | 76% | 2303 fps | 97.5% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 80% | 41,350 psi | 66% | 2073 fps | 99.9% |
| Accurate 2015 | <<locked>> | 80% | 26,687 psi | 43% | 1877 fps | 96.3% |
| Accurate 2200 | <<locked>> | 92% | 52,547 psi | 84% | 2320 fps | 95.2% |
| Accurate 2230 | <<locked>> | 92% | 52,504 psi | 84% | 2329 fps | 95.6% |
| Accurate 2460 | <<locked>> | 84% | 32,271 psi | 52% | 2014 fps | 95% |
| Accurate 2495 | <<locked>> | 86% | 23,554 psi | 38% | 1880 fps | 95.6% |
| Accurate 2520 | <<locked>> | 90% | 34,040 psi | 55% | 2087 fps | 95.2% |
| Accurate 4064 | <<locked>> | 96% | 30,777 psi | 49% | 2054 fps | 95.6% |
| Accurate LT-30 | <<locked>> | 80% | 35,549 psi | 57% | 1972 fps | 97.5% |
| Accurate LT-32 | <<locked>> | 80% | 35,955 psi | 58% | 1975 fps | 95.6% |
| ADI AR 2205 | <<locked>> | 80% | 52,315 psi | 84% | 2100 fps | 100% |
| ADI AR 2207 | <<locked>> | 80% | 37,072 psi | 59% | 2054 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 32,590 psi | 52% | 2024 fps | 96.5% |
| ADI Benchmark 8208 | <<locked>> | 96% | 43,192 psi | 69% | 2192 fps | 95.6% |
| Alliant AR-Comp | <<locked>> | 80% | 24,671 psi | 40% | 1886 fps | 97.9% |
| Alliant Power Pro 1200-R | <<locked>> | 92% | 42,931 psi | 69% | 2260 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 31,024 psi | 50% | 1978 fps | 98.8% |
| Alliant Reloder-7 | <<locked>> | 80% | 38,421 psi | 62% | 2054 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 33,460 psi | 54% | 1962 fps | 97.3% |
| Hodgdon Benchmark | <<locked>> | 90% | 38,986 psi | 63% | 2080 fps | 95.1% |
| Hodgdon BL-C2 | <<locked>> | 96% | 39,972 psi | 64% | 2201 fps | 95.6% |
| Hodgdon H322 | <<locked>> | 80% | 29,921 psi | 48% | 1969 fps | 95.5% |
| Hodgdon H335 | <<locked>> | 82% | 32,024 psi | 51% | 2018 fps | 95.1% |
| Hodgdon H4198 | <<locked>> | 80% | 39,247 psi | 63% | 2044 fps | 97.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,743 psi | 38% | 1188 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 28,340 psi | 45% | 1982 fps | 95.8% |
| IMR 4198 | <<locked>> | 80% | 33,141 psi | 53% | 1972 fps | 99.6% |
| IMR 4227 | <<locked>> | 80% | 44,512 psi | 71% | 2090 fps | 100% |
| IMR 8208 XBR | <<locked>> | 96% | 43,192 psi | 69% | 2192 fps | 95.6% |
| Lovex D060 | <<locked>> | 80% | 52,707 psi | 85% | 2228 fps | 100% |
| Lovex D073.4 | 60 gr | 80% | 34,838 psi | 56% | 2057 fps | 95.1% |
| Lovex D073.5 | <<locked>> | 88% | 36,666 psi | 59% | 2093 fps | 95% |
| Lovex D073.6 | <<locked>> | 94% | 34,403 psi | 55% | 2103 fps | 95.3% |
| Lovex S053 | <<locked>> | 80% | 43,685 psi | 70% | 2057 fps | 100% |
| Norma 200 | <<locked>> | 80% | 34,969 psi | 56% | 2037 fps | 99.8% |
| Norma 201 | <<locked>> | 98% | 41,974 psi | 67% | 2175 fps | 95.4% |
| Norma 202 | <<locked>> | 90% | 32,416 psi | 52% | 2034 fps | 95.4% |
| Ramshot X-Terminator | <<locked>> | 98% | 51,561 psi | 83% | 2280 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,511 psi | 38% | 1214 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 43,990 psi | 71% | 2119 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 35,853 psi | 57% | 2070 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 86% | 32,300 psi | 52% | 1991 fps | 95% |
| Shooters World AR Plus | 60 gr | 80% | 34,838 psi | 56% | 2057 fps | 95.1% |
| Shooters World Buffalo Rifle | <<locked>> | 80% | 52,707 psi | 85% | 2228 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 94% | 34,403 psi | 55% | 2103 fps | 95.3% |
| Shooters World Tactical Rifle | <<locked>> | 90% | 44,179 psi | 71% | 2165 fps | 95.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 40,538 psi | 65% | 1893 fps | 100% |
| SNPE Vectan SP 10 | 59.8 gr | 80% | 32,750 psi | 53% | 2028 fps | 95.3% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 31,633 psi | 51% | 1975 fps | 97.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 33,533 psi | 54% | 1972 fps | 95.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 30,429 psi | 49% | 1929 fps | 95.6% |
| Somchem S321 | <<locked>> | 92% | 40,567 psi | 65% | 2178 fps | 95.3% |
| Somchem S335 | <<locked>> | 86% | 30,472 psi | 49% | 1936 fps | 95.6% |
| Vihtavuori N110 | <<locked>> | 80% | 50,937 psi | 82% | 2067 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 37,260 psi | 60% | 2021 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 29,965 psi | 48% | 1909 fps | 98.2% |
| Vihtavuori N133 | <<locked>> | 80% | 26,078 psi | 42% | 1831 fps | 95.7% |
| Vihtavuori N135 | <<locked>> | 84% | 24,294 psi | 39% | 1860 fps | 95.2% |
| Vihtavuori N140 | <<locked>> | 90% | 30,995 psi | 50% | 1982 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 94% | 40,785 psi | 65% | 2149 fps | 95% |
| Vihtavuori N540 | <<locked>> | 94% | 33,547 psi | 54% | 2051 fps | 95.4% |
| Winchester 748 | <<locked>> | 94% | 38,957 psi | 62% | 2172 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 62 powders for .458 Win.Mag. loaded with the .458 | 400gr | Barnes Solid RN. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,438 fps; across all powders the maximum-charge window runs from 1,329 fps to 2,438 fps. Accurate 2015 gives the best case fill at 100 %, and 62 of the 62 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 51–90 %, leaving at least 10 % headroom. Accurate 2015, Accurate 2460, Accurate 2495 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 AR Plus, Lovex D073.4, SNPE Vectan SP 10 rank at the top here: for .458 Win.Mag. with the .458 | 400gr | Barnes Solid RN 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.