Load Specifications
Load data in caliber .458 Win.Mag. with .458 | 500gr | Alaska Bullet Works Kodiak RN SPBC bullet and 89 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon CFE223, Alliant Power Pro 1200-R and Accurate 2230.
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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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 84% | 53,998 psi | 87% | 1969 fps | 100% |
| Accurate 2015 | <<locked>> | 98% | 55,303 psi | 89% | 2047 fps | 100% |
| Accurate 2200 | <<locked>> | 88% | 53,998 psi | 87% | 2083 fps | 98.1% |
| Accurate 2230 | <<locked>> | 88% | 54,157 psi | 87% | 2090 fps | 98.4% |
| Accurate 2460 | <<locked>> | 94% | 54,128 psi | 87% | 2070 fps | 100% |
| Accurate 2495ᴾ | <<locked>> | 100% | 46,847 psi | 75% | 2018 fps | 100% |
| Accurate 2520 | <<locked>> | 98% | 54,578 psi | 88% | 2110 fps | 100% |
| Accurate 4064ᴾ | <<locked>> | 100% | 43,497 psi | 70% | 2008 fps | 99.9% |
| Accurate LT-30 | <<locked>> | 90% | 54,723 psi | 88% | 1982 fps | 100% |
| Accurate LT-32 | <<locked>> | 90% | 55,158 psi | 88% | 1998 fps | 100% |
| ADI AR 2206Hᴾ | <<locked>> | 100% | 54,114 psi | 87% | 2106 fps | 98.8% |
| ADI AR 2207 | <<locked>> | 88% | 55,187 psi | 88% | 1998 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 46,064 psi | 74% | 1991 fps | 96.7% |
| ADI AR 2219 | <<locked>> | 90% | 53,505 psi | 86% | 2073 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 98% | 54,128 psi | 87% | 2080 fps | 99.5% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 54,969 psi | 88% | 2100 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 94% | 55,129 psi | 88% | 2156 fps | 99.4% |
| Alliant Power Pro 2000-MRᴾ | <<locked>> | 100% | 50,705 psi | 81% | 2139 fps | 97.2% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 43,526 psi | 70% | 2001 fps | 98.1% |
| Alliant Reloder-10x | <<locked>> | 94% | 55,956 psi | 90% | 2057 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 47,747 psi | 77% | 2054 fps | 97.4% |
| Alliant Reloder-7 | <<locked>> | 86% | 53,505 psi | 86% | 1982 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 53,084 psi | 85% | 1988 fps | 100% |
| Baschieri & Pellagri 107ᴾ | <<locked>> | 100% | 53,954 psi | 87% | 2119 fps | 97.8% |
| Bofors RP3ᴾ | <<locked>> | 100% | 43,018 psi | 69% | 2008 fps | 98.1% |
| Hodgdon Benchmark | <<locked>> | 96% | 53,838 psi | 86% | 2037 fps | 99.7% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 55,274 psi | 89% | 2142 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 96% | 53,940 psi | 86% | 2169 fps | 98.4% |
| Hodgdon H322 | <<locked>> | 94% | 55,027 psi | 88% | 2090 fps | 100% |
| Hodgdon H335 | <<locked>> | 94% | 56,159 psi | 90% | 2113 fps | 100% |
| Hodgdon H4198 | <<locked>> | 86% | 53,606 psi | 86% | 1985 fps | 100% |
| Hodgdon H4895ᴾ | <<locked>> | 100% | 54,404 psi | 87% | 2116 fps | 99.2% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 49,197 psi | 79% | 2096 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,272 psi | 53% | 1181 fps | 100% |
| Hodgdon VARGETᴾ | <<locked>> | 100% | 53,084 psi | 85% | 2083 fps | 99% |
| IMR 3031ᴾ | <<locked>> | 100% | 52,344 psi | 84% | 2110 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 48,399 psi | 78% | 2014 fps | 97.5% |
| IMR 4198 | <<locked>> | 92% | 53,998 psi | 87% | 1995 fps | 100% |
| IMR 4227 | <<locked>> | 82% | 53,853 psi | 86% | 1932 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 48,834 psi | 78% | 2077 fps | 98.2% |
| IMR 8208 XBR | <<locked>> | 98% | 54,128 psi | 87% | 2080 fps | 99.5% |
| Lovex D073.4 | <<locked>> | 88% | 54,940 psi | 88% | 2080 fps | 100% |
| Lovex D073.5 | <<locked>> | 94% | 54,128 psi | 87% | 2077 fps | 99.8% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 51,793 psi | 83% | 2093 fps | 100% |
| Lovex S053 | <<locked>> | 84% | 55,753 psi | 89% | 1923 fps | 100% |
| Lovex S060ᴾ | <<locked>> | 100% | 55,811 psi | 89% | 2057 fps | 98.9% |
| Lovex S062ᴾ | <<locked>> | 100% | 46,992 psi | 75% | 2014 fps | 98.9% |
| Norma 200 | <<locked>> | 90% | 56,347 psi | 90% | 2041 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 52,910 psi | 85% | 2070 fps | 99.4% |
| Norma 202ᴾ | <<locked>> | 100% | 52,736 psi | 85% | 2077 fps | 100% |
| Norma 203Bᴾ | <<locked>> | 100% | 46,731 psi | 75% | 2044 fps | 97.8% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 47,543 psi | 76% | 2064 fps | 97.5% |
| Ramshot TAC | <<locked>> | 98% | 55,332 psi | 89% | 2090 fps | 96.5% |
| Ramshot Wild Boar | <<locked>> | 98% | 53,142 psi | 85% | 2103 fps | 98.6% |
| Ramshot X-Terminator | <<locked>> | 96% | 56,376 psi | 90% | 2087 fps | 98.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,243 psi | 53% | 1207 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 53,969 psi | 87% | 1965 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 54,389 psi | 87% | 2077 fps | 100% |
| ReloadSwiss RS 52ᴾ | <<locked>> | 100% | 50,067 psi | 80% | 2133 fps | 97.8% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 41,974 psi | 67% | 2037 fps | 99% |
| Rottweil R 901 | <<locked>> | 98% | 54,201 psi | 87% | 2060 fps | 100% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 49,864 psi | 80% | 2028 fps | 99.1% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 39,885 psi | 64% | 1955 fps | 97.1% |
| Shooters World AR Plus | <<locked>> | 88% | 54,940 psi | 88% | 2080 fps | 100% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 51,793 psi | 83% | 2093 fps | 100% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 46,992 psi | 75% | 2014 fps | 98.9% |
| Shooters World Tactical Rifle | <<locked>> | 92% | 55,361 psi | 89% | 2057 fps | 99.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 55,941 psi | 90% | 1801 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 53,664 psi | 86% | 2080 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 42,743 psi | 69% | 2005 fps | 96.6% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 53,693 psi | 86% | 2034 fps | 100% |
| SNPE Vectan SP 7ᴾ | <<locked>> | 100% | 56,246 psi | 90% | 2106 fps | 97.2% |
| SNPE Vectan SP 9ᴾ | <<locked>> | 100% | 52,402 psi | 84% | 2087 fps | 98.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 98% | 53,127 psi | 85% | 2001 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 45,542 psi | 73% | 1932 fps | 100% |
| Somchem S321 | <<locked>> | 96% | 55,376 psi | 89% | 2116 fps | 99.7% |
| Somchem S335ᴾ | <<locked>> | 100% | 54,563 psi | 87% | 2034 fps | 100% |
| Somchem S341ᴾ | <<locked>> | 100% | 55,201 psi | 89% | 2103 fps | 98.7% |
| Somchem S355ᴾ | <<locked>> | 100% | 41,626 psi | 67% | 1965 fps | 97.2% |
| Vihtavuori N120 | <<locked>> | 88% | 55,114 psi | 88% | 1959 fps | 100% |
| Vihtavuori N130 | <<locked>> | 96% | 56,217 psi | 90% | 2018 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 55,666 psi | 89% | 2024 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 47,747 psi | 77% | 2014 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 50,009 psi | 80% | 2028 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 39,987 psi | 64% | 1923 fps | 98.1% |
| Vihtavuori N530 | <<locked>> | 98% | 54,897 psi | 88% | 2080 fps | 99.6% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 48,182 psi | 77% | 2028 fps | 99.9% |
| Winchester 748ᴾ | <<locked>> | 100% | 56,260 psi | 90% | 2152 fps | 99.9% |
| Winchester StaBALL Matchᴾ | <<locked>> | 100% | 51,619 psi | 83% | 2093 fps | 98.9% |
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% | 47,558 psi | 76% | 1903 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 32,010 psi | 51% | 1755 fps | 99.6% |
| Accurate 2200 | <<locked>> | 80% | 41,669 psi | 67% | 1923 fps | 95.6% |
| Accurate 2230 | 58.6 gr | 80% | 41,075 psi | 66% | 1926 fps | 96% |
| Accurate 2460 | <<locked>> | 80% | 34,011 psi | 55% | 1811 fps | 98.2% |
| Accurate 2495 | <<locked>> | 80% | 24,352 psi | 39% | 1673 fps | 98.4% |
| Accurate 2520 | <<locked>> | 80% | 29,704 psi | 48% | 1772 fps | 96.6% |
| Accurate 4064 | <<locked>> | 80% | 23,134 psi | 37% | 1654 fps | 95.2% |
| Accurate LT-30 | <<locked>> | 80% | 40,640 psi | 65% | 1821 fps | 99.8% |
| Accurate LT-32 | <<locked>> | 80% | 41,002 psi | 66% | 1827 fps | 99% |
| ADI AR 2206H | <<locked>> | 88% | 37,478 psi | 60% | 1883 fps | 95.5% |
| ADI AR 2207 | <<locked>> | 80% | 43,511 psi | 70% | 1877 fps | 100% |
| ADI AR 2208 | <<locked>> | 96% | 40,799 psi | 65% | 1916 fps | 95.5% |
| ADI AR 2219 | <<locked>> | 80% | 38,348 psi | 61% | 1890 fps | 99.7% |
| ADI Benchmark 8208 | <<locked>> | 82% | 33,214 psi | 53% | 1791 fps | 95.6% |
| Alliant AR-Comp | <<locked>> | 80% | 29,182 psi | 47% | 1768 fps | 100% |
| Alliant Power Pro 1200-R | 54.1 gr | 80% | 35,012 psi | 56% | 1880 fps | 95.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 96% | 44,469 psi | 71% | 2051 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 32,184 psi | 52% | 1821 fps | 95% |
| Alliant Reloder-10x | <<locked>> | 80% | 36,782 psi | 59% | 1831 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 39,755 psi | 64% | 1942 fps | 95.6% |
| Alliant Reloder-7 | <<locked>> | 80% | 44,527 psi | 71% | 1883 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 38,769 psi | 62% | 1818 fps | 99.8% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 41,684 psi | 67% | 1962 fps | 95.2% |
| Bofors RP3 | <<locked>> | 92% | 32,982 psi | 53% | 1857 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 33,605 psi | 54% | 1762 fps | 96.4% |
| Hodgdon BL-C2 | <<locked>> | 82% | 30,313 psi | 49% | 1795 fps | 95.4% |
| Hodgdon CFE223 | 63.4 gr | 86% | 38,682 psi | 62% | 1959 fps | 95% |
| Hodgdon H322 | <<locked>> | 80% | 35,259 psi | 57% | 1841 fps | 99.3% |
| Hodgdon H335 | <<locked>> | 80% | 35,346 psi | 57% | 1850 fps | 98.7% |
| Hodgdon H4198 | <<locked>> | 80% | 44,788 psi | 72% | 1883 fps | 99.9% |
| Hodgdon H4895 | <<locked>> | 86% | 35,476 psi | 57% | 1860 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 33,765 psi | 54% | 1864 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,540 psi | 39% | 1050 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 34,635 psi | 56% | 1827 fps | 95.1% |
| IMR 3031 | <<locked>> | 80% | 27,978 psi | 45% | 1755 fps | 98.4% |
| IMR 4064 | <<locked>> | 92% | 37,898 psi | 61% | 1870 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 38,174 psi | 61% | 1811 fps | 100% |
| IMR 4227 | <<locked>> | 80% | 50,604 psi | 81% | 1900 fps | 100% |
| IMR 4895 | <<locked>> | 90% | 35,824 psi | 57% | 1890 fps | 95.2% |
| IMR 8208 XBR | <<locked>> | 82% | 33,214 psi | 53% | 1791 fps | 95.6% |
| Lovex D073.4 | <<locked>> | 80% | 41,698 psi | 67% | 1926 fps | 99.1% |
| Lovex D073.5 | <<locked>> | 80% | 33,837 psi | 54% | 1811 fps | 97% |
| Lovex D073.6 | <<locked>> | 80% | 26,600 psi | 43% | 1719 fps | 95.3% |
| Lovex S053 | <<locked>> | 80% | 49,647 psi | 80% | 1860 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 37,043 psi | 59% | 1814 fps | 95.2% |
| Lovex S062 | <<locked>> | 88% | 32,677 psi | 52% | 1801 fps | 95.6% |
| Norma 200 | <<locked>> | 80% | 41,365 psi | 66% | 1877 fps | 100% |
| Norma 201 | <<locked>> | 84% | 32,547 psi | 52% | 1785 fps | 95.5% |
| Norma 202 | <<locked>> | 80% | 28,355 psi | 45% | 1726 fps | 96.8% |
| Norma 203B | <<locked>> | 92% | 36,492 psi | 59% | 1896 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 94% | 39,102 psi | 63% | 1942 fps | 95.4% |
| Ramshot TAC | <<locked>> | 94% | 48,704 psi | 78% | 2011 fps | 95.2% |
| Ramshot Wild Boar | <<locked>> | 88% | 38,435 psi | 62% | 1909 fps | 95.7% |
| Ramshot X-Terminator | <<locked>> | 84% | 38,508 psi | 62% | 1860 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,656 psi | 40% | 1079 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 50,575 psi | 81% | 1932 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 35,027 psi | 56% | 1821 fps | 97.7% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 38,798 psi | 62% | 1972 fps | 95.1% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 30,705 psi | 49% | 1827 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 32,068 psi | 51% | 1759 fps | 97.6% |
| Rottweil R 902 | <<locked>> | 86% | 32,837 psi | 53% | 1781 fps | 95.6% |
| Rottweil R 903 | <<locked>> | 94% | 32,938 psi | 53% | 1847 fps | 95% |
| Shooters World AR Plus | <<locked>> | 80% | 41,698 psi | 67% | 1926 fps | 99.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 26,600 psi | 43% | 1719 fps | 95.3% |
| Shooters World Precision | <<locked>> | 88% | 32,677 psi | 52% | 1801 fps | 95.6% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 36,927 psi | 59% | 1824 fps | 96.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 45,672 psi | 73% | 1703 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 38,783 psi | 62% | 1893 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 37,927 psi | 61% | 1929 fps | 95.2% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 37,289 psi | 60% | 1837 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 94% | 45,687 psi | 73% | 1985 fps | 95.2% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 36,085 psi | 58% | 1864 fps | 95% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 30,806 psi | 49% | 1699 fps | 97.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 24,976 psi | 40% | 1604 fps | 96.3% |
| Somchem S321 | <<locked>> | 80% | 32,576 psi | 52% | 1804 fps | 95.8% |
| Somchem S335 | <<locked>> | 80% | 30,008 psi | 48% | 1706 fps | 98% |
| Somchem S341 | <<locked>> | 88% | 37,188 psi | 60% | 1873 fps | 95.1% |
| Somchem S355 | <<locked>> | 94% | 34,577 psi | 55% | 1857 fps | 95.3% |
| Vihtavuori N120 | <<locked>> | 80% | 43,613 psi | 70% | 1841 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 35,114 psi | 56% | 1768 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 30,603 psi | 49% | 1709 fps | 99.3% |
| Vihtavuori N135 | <<locked>> | 80% | 25,701 psi | 41% | 1683 fps | 98.6% |
| Vihtavuori N140 | <<locked>> | 80% | 26,948 psi | 43% | 1680 fps | 96.5% |
| Vihtavuori N150 | <<locked>> | 92% | 31,256 psi | 50% | 1781 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 82% | 32,837 psi | 53% | 1785 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 25,817 psi | 41% | 1670 fps | 95.4% |
| Winchester 748 | <<locked>> | 80% | 29,428 psi | 47% | 1768 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 88% | 35,114 psi | 56% | 1864 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 89 powders for .458 Win.Mag. loaded with the .458 | 500gr | Alaska Bullet Works Kodiak RN SPBC. Hodgdon CFE223 delivers the highest muzzle velocity at 2,169 fps; across all powders the maximum-charge window runs from 1,181 fps to 2,169 fps. Accurate 2495 gives the best case fill at 100 %, and 89 of the 89 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 53–90 %, leaving at least 10 % headroom. Accurate 2495, Accurate 4064, ADI AR 2206H 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. Hodgdon CFE223, Alliant Power Pro 1200-R, Accurate 2230 rank at the top here: for .458 Win.Mag. with the .458 | 500gr | Alaska Bullet Works Kodiak RN SPBC they combine a high case fill with complete burn and sit in the upper velocity band. Hodgdon TrailBoss, ReloadSwiss RS 14 stay subsonic at start load. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.