Load Specifications
Load data in caliber .458 Win.Mag. with .458 | 500gr | Remington FMC RN bullet and 92 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 2000-MR and ReloadSwiss RS 52.
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.
A valid access license is required to use the Personalized Load Calculator.
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% | 55,550 psi | 89% | 1998 fps | 100% |
| Accurate 2015 | <<locked>> | 96% | 53,882 psi | 86% | 2047 fps | 100% |
| Accurate 2200 | <<locked>> | 88% | 55,840 psi | 90% | 2123 fps | 98.6% |
| Accurate 2230 | <<locked>> | 88% | 56,246 psi | 90% | 2129 fps | 98.9% |
| Accurate 2460 | <<locked>> | 94% | 56,043 psi | 90% | 2106 fps | 100% |
| Accurate 2495ᴾ | <<locked>> | 100% | 48,878 psi | 78% | 2054 fps | 100% |
| Accurate 2520 | <<locked>> | 96% | 53,084 psi | 85% | 2110 fps | 100% |
| Accurate 4064ᴾ | <<locked>> | 100% | 45,368 psi | 73% | 2044 fps | 100% |
| Accurate LT-30 | <<locked>> | 90% | 56,260 psi | 90% | 2014 fps | 100% |
| Accurate LT-32 | <<locked>> | 88% | 53,432 psi | 86% | 1995 fps | 100% |
| ADI AR 2206Hᴾ | <<locked>> | 100% | 55,985 psi | 90% | 2146 fps | 99.2% |
| ADI AR 2207 | <<locked>> | 86% | 53,722 psi | 86% | 1998 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 47,572 psi | 76% | 2028 fps | 97.4% |
| ADI AR 2219 | <<locked>> | 90% | 55,332 psi | 89% | 2106 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 98% | 55,912 psi | 90% | 2116 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 98% | 53,809 psi | 86% | 2103 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 92% | 53,563 psi | 86% | 2156 fps | 99.4% |
| Alliant Power Pro 2000-MRᴾ | <<locked>> | 100% | 52,344 psi | 84% | 2182 fps | 97.9% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 45,353 psi | 73% | 2041 fps | 98.6% |
| Alliant Reloder-10x | <<locked>> | 92% | 54,476 psi | 87% | 2057 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 49,617 psi | 80% | 2093 fps | 98% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 40,495 psi | 65% | 2021 fps | 96.7% |
| Alliant Reloder-7 | <<locked>> | 86% | 55,129 psi | 88% | 2011 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 54,665 psi | 88% | 2018 fps | 100% |
| Baschieri & Pellagri 107ᴾ | <<locked>> | 100% | 55,912 psi | 90% | 2159 fps | 98.3% |
| Bofors RP3ᴾ | <<locked>> | 100% | 44,875 psi | 72% | 2047 fps | 98.6% |
| Hodgdon Benchmark | <<locked>> | 96% | 55,593 psi | 89% | 2073 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 98% | 53,650 psi | 86% | 2142 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 96% | 55,970 psi | 90% | 2211 fps | 98.9% |
| Hodgdon H322 | <<locked>> | 92% | 53,606 psi | 86% | 2090 fps | 100% |
| Hodgdon H335 | <<locked>> | 92% | 54,447 psi | 87% | 2113 fps | 100% |
| Hodgdon H380ᴾ | <<locked>> | 100% | 47,137 psi | 76% | 2051 fps | 96.1% |
| Hodgdon H4198 | <<locked>> | 86% | 55,143 psi | 88% | 2014 fps | 100% |
| Hodgdon H4895ᴾ | <<locked>> | 100% | 56,420 psi | 90% | 2156 fps | 99.5% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 50,850 psi | 82% | 2136 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,475 psi | 54% | 1194 fps | 100% |
| Hodgdon VARGETᴾ | <<locked>> | 100% | 54,926 psi | 88% | 2123 fps | 99.3% |
| IMR 3031ᴾ | <<locked>> | 100% | 54,462 psi | 87% | 2146 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 50,053 psi | 80% | 2051 fps | 98% |
| IMR 4198 | <<locked>> | 92% | 55,637 psi | 89% | 2024 fps | 100% |
| IMR 4227 | <<locked>> | 82% | 55,274 psi | 89% | 1962 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 50,691 psi | 81% | 2119 fps | 98.7% |
| IMR 8208 XBR | <<locked>> | 98% | 55,912 psi | 90% | 2116 fps | 99.7% |
| Lovex D073.4 | <<locked>> | 86% | 52,982 psi | 85% | 2077 fps | 100% |
| Lovex D073.5 | <<locked>> | 94% | 56,173 psi | 90% | 2113 fps | 100% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 54,114 psi | 87% | 2133 fps | 100% |
| Lovex S053 | <<locked>> | 82% | 53,940 psi | 86% | 1916 fps | 100% |
| Lovex S060 | <<locked>> | 98% | 54,360 psi | 87% | 2060 fps | 98.9% |
| Lovex S062ᴾ | <<locked>> | 100% | 48,675 psi | 78% | 2051 fps | 99.2% |
| Norma 200 | <<locked>> | 88% | 54,737 psi | 88% | 2041 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 54,708 psi | 88% | 2106 fps | 99.7% |
| Norma 202ᴾ | <<locked>> | 100% | 54,839 psi | 88% | 2113 fps | 100% |
| Norma 203Bᴾ | <<locked>> | 100% | 48,602 psi | 78% | 2083 fps | 98.4% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 49,240 psi | 79% | 2103 fps | 98.1% |
| Ramshot TAC | <<locked>> | 96% | 53,635 psi | 86% | 2090 fps | 96.6% |
| Ramshot Wild Boar | <<locked>> | 98% | 55,143 psi | 88% | 2142 fps | 99% |
| Ramshot X-Terminator | <<locked>> | 94% | 54,781 psi | 88% | 2090 fps | 98.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,649 psi | 54% | 1227 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 55,463 psi | 89% | 1995 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 56,231 psi | 90% | 2113 fps | 100% |
| ReloadSwiss RS 52ᴾ | <<locked>> | 100% | 52,141 psi | 84% | 2175 fps | 98.4% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 43,279 psi | 69% | 2077 fps | 99.4% |
| Rottweil R 901 | <<locked>> | 98% | 55,956 psi | 90% | 2096 fps | 100% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 51,648 psi | 83% | 2064 fps | 99.4% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 41,727 psi | 67% | 1998 fps | 97.8% |
| Shooters World AR Plus | <<locked>> | 86% | 52,982 psi | 85% | 2077 fps | 100% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 54,114 psi | 87% | 2133 fps | 100% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 48,675 psi | 78% | 2051 fps | 99.2% |
| Shooters World Tactical Rifle | <<locked>> | 90% | 53,374 psi | 86% | 2054 fps | 99.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 54,491 psi | 87% | 1801 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 55,550 psi | 89% | 2116 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 44,396 psi | 71% | 2044 fps | 97.3% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 55,492 psi | 89% | 2067 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 98% | 54,346 psi | 87% | 2106 fps | 97.2% |
| SNPE Vectan SP 9ᴾ | <<locked>> | 100% | 54,346 psi | 87% | 2126 fps | 98.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 98% | 54,810 psi | 88% | 2034 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 47,021 psi | 75% | 1965 fps | 100% |
| Somchem S321 | <<locked>> | 94% | 53,635 psi | 86% | 2113 fps | 99.7% |
| Somchem S335ᴾ | <<locked>> | 100% | 56,318 psi | 90% | 2067 fps | 100% |
| Somchem S341 | <<locked>> | 98% | 53,447 psi | 86% | 2103 fps | 98.7% |
| Somchem S355ᴾ | <<locked>> | 100% | 43,178 psi | 69% | 2005 fps | 97.8% |
| Vihtavuori N120 | <<locked>> | 86% | 53,693 psi | 86% | 1959 fps | 100% |
| Vihtavuori N130 | <<locked>> | 94% | 54,650 psi | 88% | 2018 fps | 100% |
| Vihtavuori N133 | <<locked>> | 98% | 54,172 psi | 87% | 2028 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 49,574 psi | 79% | 2047 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 51,938 psi | 83% | 2064 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 41,611 psi | 67% | 1959 fps | 98.6% |
| Vihtavuori N530 | <<locked>> | 96% | 53,403 psi | 86% | 2083 fps | 99.6% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 49,893 psi | 80% | 2060 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 38,740 psi | 62% | 1906 fps | 95.9% |
| Winchester 748 | <<locked>> | 98% | 54,578 psi | 88% | 2152 fps | 100% |
| Winchester StaBALL Matchᴾ | <<locked>> | 100% | 53,563 psi | 86% | 2133 fps | 99.3% |
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% | 48,863 psi | 78% | 1932 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 33,083 psi | 53% | 1785 fps | 99.8% |
| Accurate 2200 | <<locked>> | 80% | 43,134 psi | 69% | 1959 fps | 96.3% |
| Accurate 2230 | <<locked>> | 80% | 42,482 psi | 68% | 1962 fps | 96.6% |
| Accurate 2460 | <<locked>> | 80% | 35,302 psi | 57% | 1847 fps | 98.7% |
| Accurate 2495 | <<locked>> | 80% | 25,512 psi | 41% | 1706 fps | 98.9% |
| Accurate 2520 | <<locked>> | 80% | 30,908 psi | 50% | 1804 fps | 97.3% |
| Accurate 4064 | <<locked>> | 80% | 24,236 psi | 39% | 1690 fps | 96% |
| Accurate LT-30 | <<locked>> | 80% | 41,655 psi | 67% | 1847 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 42,047 psi | 67% | 1857 fps | 99.3% |
| ADI AR 2206H | <<locked>> | 86% | 36,492 psi | 59% | 1883 fps | 95.6% |
| ADI AR 2207 | <<locked>> | 80% | 44,933 psi | 72% | 1906 fps | 100% |
| ADI AR 2208 | <<locked>> | 94% | 39,755 psi | 64% | 1919 fps | 95.5% |
| ADI AR 2219 | <<locked>> | 80% | 39,595 psi | 63% | 1923 fps | 99.9% |
| ADI Benchmark 8208 | <<locked>> | 80% | 32,169 psi | 52% | 1785 fps | 95.5% |
| Alliant AR-Comp | <<locked>> | 80% | 30,298 psi | 49% | 1801 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 36,318 psi | 58% | 1916 fps | 96.4% |
| Alliant Power Pro 2000-MR | 70.1 gr | 94% | 42,960 psi | 69% | 2051 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 31,386 psi | 50% | 1821 fps | 95% |
| Alliant Reloder-10x | <<locked>> | 80% | 38,014 psi | 61% | 1864 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 38,696 psi | 62% | 1942 fps | 95.6% |
| Alliant Reloder-17 | <<locked>> | 96% | 35,752 psi | 57% | 1939 fps | 95% |
| Alliant Reloder-7 | <<locked>> | 80% | 45,948 psi | 74% | 1916 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 40,045 psi | 64% | 1850 fps | 99.9% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 40,393 psi | 65% | 1959 fps | 95.2% |
| Bofors RP3 | <<locked>> | 90% | 32,271 psi | 52% | 1857 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 34,679 psi | 56% | 1795 fps | 97% |
| Hodgdon BL-C2 | <<locked>> | 80% | 29,457 psi | 47% | 1791 fps | 95.4% |
| Hodgdon CFE223 | 64.1 gr | 84% | 37,492 psi | 60% | 1955 fps | 95% |
| Hodgdon H322 | <<locked>> | 80% | 36,448 psi | 58% | 1873 fps | 99.6% |
| Hodgdon H335 | <<locked>> | 80% | 36,680 psi | 59% | 1886 fps | 99.1% |
| Hodgdon H380 | <<locked>> | 98% | 44,280 psi | 71% | 2011 fps | 95.5% |
| Hodgdon H4198 | <<locked>> | 80% | 45,934 psi | 74% | 1913 fps | 100% |
| Hodgdon H4895 | <<locked>> | 84% | 34,403 psi | 55% | 1854 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 32,764 psi | 53% | 1860 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,816 psi | 40% | 1066 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 33,547 psi | 54% | 1821 fps | 95% |
| IMR 3031 | <<locked>> | 80% | 28,906 psi | 46% | 1788 fps | 98.9% |
| IMR 4064 | <<locked>> | 90% | 36,956 psi | 59% | 1870 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 39,291 psi | 63% | 1841 fps | 100% |
| IMR 4227 | <<locked>> | 80% | 52,025 psi | 83% | 1929 fps | 100% |
| IMR 4895 | <<locked>> | 88% | 34,882 psi | 56% | 1890 fps | 95.2% |
| IMR 8208 XBR | <<locked>> | 80% | 32,169 psi | 52% | 1785 fps | 95.5% |
| Lovex D073.4 | <<locked>> | 80% | 43,105 psi | 69% | 1959 fps | 99.4% |
| Lovex D073.5 | <<locked>> | 80% | 35,056 psi | 56% | 1844 fps | 97.6% |
| Lovex D073.6 | <<locked>> | 80% | 27,644 psi | 44% | 1752 fps | 96.1% |
| Lovex S053 | <<locked>> | 80% | 50,894 psi | 82% | 1886 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 35,911 psi | 58% | 1811 fps | 95.2% |
| Lovex S062 | <<locked>> | 86% | 31,894 psi | 51% | 1801 fps | 95.7% |
| Norma 200 | <<locked>> | 80% | 42,830 psi | 69% | 1909 fps | 100% |
| Norma 201 | <<locked>> | 82% | 31,691 psi | 51% | 1781 fps | 95.5% |
| Norma 202 | <<locked>> | 80% | 29,443 psi | 47% | 1759 fps | 97.4% |
| Norma 203B | <<locked>> | 90% | 35,636 psi | 57% | 1896 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 92% | 38,029 psi | 61% | 1942 fps | 95.5% |
| Ramshot TAC | <<locked>> | 92% | 47,166 psi | 76% | 2011 fps | 95.2% |
| Ramshot Wild Boar | <<locked>> | 86% | 37,289 psi | 60% | 1906 fps | 95.7% |
| Ramshot X-Terminator | <<locked>> | 82% | 37,405 psi | 60% | 1857 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,758 psi | 40% | 1089 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 52,069 psi | 83% | 1962 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 36,114 psi | 58% | 1854 fps | 98.2% |
| ReloadSwiss RS 52 | 65.1 gr | 90% | 37,724 psi | 60% | 1972 fps | 95.2% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 29,762 psi | 48% | 1824 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 33,156 psi | 53% | 1788 fps | 98.1% |
| Rottweil R 902 | <<locked>> | 84% | 31,966 psi | 51% | 1781 fps | 95.6% |
| Rottweil R 903 | <<locked>> | 92% | 32,169 psi | 52% | 1847 fps | 95.1% |
| Shooters World AR Plus | <<locked>> | 80% | 43,105 psi | 69% | 1959 fps | 99.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 27,644 psi | 44% | 1752 fps | 96.1% |
| Shooters World Precision | <<locked>> | 86% | 31,894 psi | 51% | 1801 fps | 95.7% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 38,319 psi | 61% | 1860 fps | 97% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 46,760 psi | 75% | 1726 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 40,234 psi | 65% | 1929 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 36,912 psi | 59% | 1929 fps | 95.2% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 38,537 psi | 62% | 1867 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 92% | 44,280 psi | 71% | 1985 fps | 95.2% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 35,070 psi | 56% | 1860 fps | 95% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 31,792 psi | 51% | 1732 fps | 97.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 25,759 psi | 41% | 1634 fps | 97% |
| Somchem S321 | <<locked>> | 80% | 33,837 psi | 54% | 1841 fps | 96.6% |
| Somchem S335 | <<locked>> | 80% | 31,067 psi | 50% | 1736 fps | 98.5% |
| Somchem S341 | <<locked>> | 86% | 35,984 psi | 58% | 1870 fps | 95.1% |
| Somchem S355 | <<locked>> | 92% | 33,750 psi | 54% | 1857 fps | 95.3% |
| Vihtavuori N120 | <<locked>> | 80% | 44,976 psi | 72% | 1870 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 36,216 psi | 58% | 1798 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 31,618 psi | 51% | 1739 fps | 99.6% |
| Vihtavuori N135 | <<locked>> | 80% | 26,658 psi | 43% | 1713 fps | 99% |
| Vihtavuori N140 | <<locked>> | 80% | 27,862 psi | 45% | 1713 fps | 97.2% |
| Vihtavuori N150 | <<locked>> | 90% | 30,356 psi | 49% | 1778 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 31,792 psi | 51% | 1781 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 26,643 psi | 43% | 1703 fps | 96.1% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 36,245 psi | 58% | 1867 fps | 95.1% |
| Winchester 748 | <<locked>> | 80% | 30,458 psi | 49% | 1801 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 86% | 34,026 psi | 55% | 1860 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 92 powders for .458 Win.Mag. loaded with the .458 | 500gr | Remington FMC RN. Hodgdon CFE223 delivers the highest muzzle velocity at 2,211 fps; across all powders the maximum-charge window runs from 1,194 fps to 2,211 fps. Accurate 2495 gives the best case fill at 100 %, and 92 of the 92 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 54–90 %, 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 2000-MR, ReloadSwiss RS 52 rank at the top here: for .458 Win.Mag. with the .458 | 500gr | Remington FMC RN 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.