Load Specifications
Load data in caliber .458 Win.Mag. with .457 | 425gr | Rhino Solid Shank bullet and 71 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 1200-R, SNPE Vectan SP 10 and ADI AR 2219.
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% | 55,666 psi | 89% | 2178 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 52,098 psi | 84% | 2215 fps | 100% |
| Accurate 2200 | <<locked>> | 92% | 55,056 psi | 88% | 2283 fps | 96.5% |
| Accurate 2230 | <<locked>> | 92% | 55,143 psi | 88% | 2290 fps | 96.9% |
| Accurate 2460 | <<locked>> | 98% | 54,360 psi | 87% | 2270 fps | 99.7% |
| Accurate 2495ᴾ | <<locked>> | 100% | 40,030 psi | 64% | 2129 fps | 99.9% |
| Accurate 2520ᴾ | <<locked>> | 100% | 50,923 psi | 82% | 2267 fps | 99.3% |
| Accurate 4064ᴾ | <<locked>> | 100% | 37,275 psi | 60% | 2106 fps | 98.2% |
| Accurate LT-30 | <<locked>> | 94% | 56,101 psi | 90% | 2188 fps | 100% |
| Accurate LT-32 | <<locked>> | 92% | 53,490 psi | 86% | 2165 fps | 99.4% |
| ADI AR 2206Hᴾ | <<locked>> | 100% | 48,080 psi | 77% | 2218 fps | 96.1% |
| ADI AR 2207 | <<locked>> | 92% | 55,898 psi | 90% | 2211 fps | 100% |
| ADI AR 2219 | <<locked>> | 94% | 53,954 psi | 87% | 2280 fps | 100% |
| ADI Benchmark 8208ᴾ | <<locked>> | 100% | 51,285 psi | 82% | 2234 fps | 98% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 48,095 psi | 77% | 2238 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 98% | 55,027 psi | 88% | 2356 fps | 98.2% |
| Alliant Reloder-10x | <<locked>> | 98% | 55,985 psi | 90% | 2264 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 90% | 54,331 psi | 87% | 2192 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 54,317 psi | 87% | 2192 fps | 100% |
| Hodgdon Benchmarkᴾ | <<locked>> | 100% | 54,636 psi | 88% | 2234 fps | 98.8% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 48,153 psi | 77% | 2254 fps | 98.1% |
| Hodgdon CFE223ᴾ | <<locked>> | 100% | 54,737 psi | 88% | 2365 fps | 96.7% |
| Hodgdon H322 | <<locked>> | 98% | 55,477 psi | 89% | 2297 fps | 100% |
| Hodgdon H335 | <<locked>> | 96% | 53,229 psi | 85% | 2280 fps | 99.7% |
| Hodgdon H4198 | <<locked>> | 90% | 54,955 psi | 88% | 2188 fps | 99.9% |
| Hodgdon H4895ᴾ | <<locked>> | 100% | 48,240 psi | 77% | 2231 fps | 96.9% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 43,569 psi | 70% | 2195 fps | 96% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,430 psi | 52% | 1286 fps | 100% |
| Hodgdon VARGETᴾ | <<locked>> | 100% | 47,471 psi | 76% | 2195 fps | 96.4% |
| IMR 3031ᴾ | <<locked>> | 100% | 45,672 psi | 73% | 2231 fps | 99.9% |
| IMR 4198 | <<locked>> | 96% | 54,447 psi | 87% | 2201 fps | 100% |
| IMR 4227 | <<locked>> | 86% | 55,274 psi | 89% | 2146 fps | 100% |
| IMR 8208 XBRᴾ | <<locked>> | 100% | 51,285 psi | 82% | 2234 fps | 98% |
| Lovex D073.4 | <<locked>> | 92% | 55,608 psi | 89% | 2287 fps | 99.5% |
| Lovex D073.5 | <<locked>> | 98% | 54,665 psi | 88% | 2277 fps | 99.1% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 44,773 psi | 72% | 2201 fps | 98.5% |
| Lovex S053 | <<locked>> | 86% | 53,766 psi | 86% | 2100 fps | 100% |
| Lovex S060ᴾ | <<locked>> | 100% | 50,328 psi | 81% | 2175 fps | 96.4% |
| Lovex S062ᴾ | <<locked>> | 100% | 41,321 psi | 66% | 2116 fps | 96.1% |
| Norma 200 | <<locked>> | 92% | 53,055 psi | 85% | 2215 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 46,847 psi | 75% | 2182 fps | 97.3% |
| Norma 202ᴾ | <<locked>> | 100% | 46,615 psi | 75% | 2198 fps | 99.2% |
| Ramshot Wild Boarᴾ | <<locked>> | 100% | 50,198 psi | 80% | 2254 fps | 96.4% |
| Ramshot X-Terminator | <<locked>> | 98% | 53,867 psi | 86% | 2241 fps | 96.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,430 psi | 52% | 1319 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 86% | 54,969 psi | 88% | 2175 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 98% | 55,027 psi | 88% | 2280 fps | 99.4% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 50,981 psi | 82% | 2221 fps | 99.5% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 44,106 psi | 71% | 2136 fps | 96.7% |
| Shooters World AR Plus | <<locked>> | 92% | 55,608 psi | 89% | 2287 fps | 99.5% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 44,773 psi | 72% | 2201 fps | 98.5% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 41,321 psi | 66% | 2116 fps | 96.1% |
| Shooters World Tactical Rifle | <<locked>> | 94% | 52,881 psi | 85% | 2215 fps | 97.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 90% | 54,331 psi | 87% | 1975 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 94% | 54,476 psi | 87% | 2287 fps | 99.8% |
| SNPE Vectan SP 3 | <<locked>> | 96% | 54,157 psi | 87% | 2241 fps | 100% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 50,473 psi | 81% | 2159 fps | 99.4% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 40,379 psi | 65% | 2044 fps | 98.9% |
| Somchem S321ᴾ | <<locked>> | 100% | 55,970 psi | 90% | 2316 fps | 98.8% |
| Somchem S335ᴾ | <<locked>> | 100% | 48,646 psi | 78% | 2162 fps | 99.7% |
| Somchem S341ᴾ | <<locked>> | 100% | 48,863 psi | 78% | 2211 fps | 95.9% |
| Vihtavuori N110 | <<locked>> | 82% | 55,898 psi | 90% | 2044 fps | 100% |
| Vihtavuori N120 | <<locked>> | 92% | 55,956 psi | 90% | 2169 fps | 100% |
| Vihtavuori N130 | <<locked>> | 98% | 53,563 psi | 86% | 2188 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 49,545 psi | 79% | 2159 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 41,466 psi | 66% | 2133 fps | 99.9% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 44,019 psi | 71% | 2142 fps | 99.1% |
| Vihtavuori N530ᴾ | <<locked>> | 100% | 51,866 psi | 83% | 2234 fps | 98.1% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 42,438 psi | 68% | 2136 fps | 98.5% |
| Winchester 748ᴾ | <<locked>> | 100% | 49,530 psi | 79% | 2267 fps | 98.5% |
| Winchester StaBALL Matchᴾ | <<locked>> | 100% | 45,687 psi | 73% | 2198 fps | 96.1% |
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% | 43,004 psi | 69% | 2031 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 28,181 psi | 45% | 1850 fps | 97.6% |
| Accurate 2200 | <<locked>> | 88% | 48,457 psi | 78% | 2198 fps | 95.1% |
| Accurate 2230 | <<locked>> | 88% | 47,935 psi | 77% | 2201 fps | 95.5% |
| Accurate 2460 | <<locked>> | 80% | 29,892 psi | 48% | 1903 fps | 95% |
| Accurate 2495 | <<locked>> | 82% | 22,118 psi | 35% | 1781 fps | 95.6% |
| Accurate 2520 | <<locked>> | 86% | 31,430 psi | 50% | 1972 fps | 95.1% |
| Accurate 4064 | <<locked>> | 90% | 27,166 psi | 44% | 1909 fps | 95% |
| Accurate LT-30 | <<locked>> | 80% | 36,869 psi | 59% | 1932 fps | 98.4% |
| Accurate LT-32 | <<locked>> | 80% | 37,275 psi | 60% | 1936 fps | 96.7% |
| ADI AR 2206H | <<locked>> | 98% | 45,223 psi | 73% | 2178 fps | 95.5% |
| ADI AR 2207 | <<locked>> | 80% | 38,914 psi | 62% | 2008 fps | 100% |
| ADI AR 2219 | 57.4 gr | 80% | 34,127 psi | 55% | 1991 fps | 97.7% |
| ADI Benchmark 8208 | <<locked>> | 92% | 40,089 psi | 64% | 2077 fps | 95.6% |
| Alliant AR-Comp | <<locked>> | 80% | 25,918 psi | 42% | 1860 fps | 99% |
| Alliant Power Pro 1200-R | 61.1 gr | 88% | 39,798 psi | 64% | 2139 fps | 95% |
| Alliant Reloder-10x | <<locked>> | 80% | 32,474 psi | 52% | 1939 fps | 99.4% |
| Alliant Reloder-7 | <<locked>> | 80% | 40,234 psi | 65% | 2014 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 34,896 psi | 56% | 1926 fps | 98.3% |
| Hodgdon Benchmark | <<locked>> | 86% | 36,085 psi | 58% | 1965 fps | 95.1% |
| Hodgdon BL-C2 | <<locked>> | 92% | 36,941 psi | 59% | 2083 fps | 95.5% |
| Hodgdon CFE223 | <<locked>> | 96% | 47,645 psi | 76% | 2270 fps | 95.1% |
| Hodgdon H322 | <<locked>> | 80% | 31,256 psi | 50% | 1936 fps | 96.8% |
| Hodgdon H335 | <<locked>> | 80% | 31,401 psi | 50% | 1946 fps | 95.7% |
| Hodgdon H4198 | <<locked>> | 80% | 40,654 psi | 65% | 2001 fps | 98.7% |
| Hodgdon H4895 | <<locked>> | 96% | 42,612 psi | 68% | 2149 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 98% | 40,828 psi | 65% | 2152 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,888 psi | 38% | 1148 fps | 100% |
| Hodgdon VARGET | <<locked>> | 96% | 41,974 psi | 67% | 2113 fps | 95.1% |
| IMR 3031 | <<locked>> | 82% | 26,368 psi | 42% | 1873 fps | 95.7% |
| IMR 4198 | <<locked>> | 80% | 34,403 psi | 55% | 1929 fps | 99.9% |
| IMR 4227 | <<locked>> | 80% | 46,253 psi | 74% | 2044 fps | 100% |
| IMR 8208 XBR | <<locked>> | 92% | 40,089 psi | 64% | 2077 fps | 95.6% |
| Lovex D073.4 | <<locked>> | 80% | 36,680 psi | 59% | 2028 fps | 96.5% |
| Lovex D073.5 | <<locked>> | 86% | 36,172 psi | 58% | 2021 fps | 95.7% |
| Lovex D073.6 | <<locked>> | 90% | 31,966 psi | 51% | 1995 fps | 95.3% |
| Lovex S053 | <<locked>> | 80% | 45,252 psi | 73% | 2005 fps | 100% |
| Lovex S060 | <<locked>> | 96% | 44,744 psi | 72% | 2096 fps | 95.2% |
| Lovex S062 | <<locked>> | 98% | 38,798 psi | 62% | 2077 fps | 95.5% |
| Norma 200 | <<locked>> | 80% | 36,796 psi | 59% | 1998 fps | 100% |
| Norma 201 | <<locked>> | 94% | 38,986 psi | 63% | 2064 fps | 95.5% |
| Norma 202 | <<locked>> | 86% | 30,182 psi | 48% | 1926 fps | 95.4% |
| Ramshot Wild Boar | <<locked>> | 96% | 44,179 psi | 71% | 2169 fps | 95% |
| Ramshot X-Terminator | <<locked>> | 94% | 47,340 psi | 76% | 2159 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,873 psi | 38% | 1178 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 45,919 psi | 74% | 2073 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 33,127 psi | 53% | 1955 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 82% | 30,182 psi | 48% | 1883 fps | 95% |
| Rottweil R 902 | <<locked>> | 96% | 39,102 psi | 63% | 2057 fps | 95.4% |
| Shooters World AR Plus | <<locked>> | 80% | 36,680 psi | 59% | 2028 fps | 96.5% |
| Shooters World Match Rifle | <<locked>> | 90% | 31,966 psi | 51% | 1995 fps | 95.3% |
| Shooters World Precision | <<locked>> | 98% | 38,798 psi | 62% | 2077 fps | 95.5% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 40,422 psi | 65% | 2044 fps | 95.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 41,974 psi | 67% | 1841 fps | 100% |
| SNPE Vectan SP 10 | 59.4 gr | 80% | 34,374 psi | 55% | 1995 fps | 96.7% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 33,170 psi | 53% | 1942 fps | 98.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 31,067 psi | 50% | 1864 fps | 95.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 28,297 psi | 45% | 1824 fps | 95.6% |
| Somchem S321 | <<locked>> | 88% | 37,478 psi | 60% | 2060 fps | 95.3% |
| Somchem S335 | <<locked>> | 82% | 28,369 psi | 45% | 1831 fps | 95.6% |
| Somchem S341 | <<locked>> | 98% | 45,716 psi | 73% | 2169 fps | 95.1% |
| Vihtavuori N110 | <<locked>> | 80% | 52,837 psi | 85% | 2011 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 39,088 psi | 63% | 1975 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 31,415 psi | 50% | 1877 fps | 99% |
| Vihtavuori N133 | <<locked>> | 80% | 27,296 psi | 44% | 1804 fps | 97% |
| Vihtavuori N135 | <<locked>> | 80% | 22,669 psi | 36% | 1759 fps | 95.2% |
| Vihtavuori N140 | <<locked>> | 86% | 28,747 psi | 46% | 1873 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 92% | 40,045 psi | 64% | 2073 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 90% | 31,096 psi | 50% | 1942 fps | 95.4% |
| Winchester 748 | <<locked>> | 90% | 36,085 psi | 58% | 2057 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 98% | 42,757 psi | 69% | 2156 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 71 powders for .458 Win.Mag. loaded with the .457 | 425gr | Rhino Solid Shank. Hodgdon CFE223 delivers the highest muzzle velocity at 2,365 fps; across all powders the maximum-charge window runs from 1,286 fps to 2,365 fps. Accurate 2015 gives the best case fill at 100 %, and 71 of the 71 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 52–90 %, leaving at least 10 % headroom. Accurate 2015, Accurate 2495, Accurate 2520 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. Alliant Power Pro 1200-R, SNPE Vectan SP 10, ADI AR 2219 rank at the top here: for .458 Win.Mag. with the .457 | 425gr | Rhino Solid Shank 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.