Load Specifications
Load data in caliber .458 Lott with .458 | 500gr | Hornady FMJ RN ENC 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 1200-R and Somchem S321.
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>> | 84% | 55,753 psi | 89% | 2005 fps | 100% |
| Accurate 2015 | <<locked>> | 96% | 54,157 psi | 87% | 2054 fps | 100% |
| Accurate 2200 | <<locked>> | 88% | 56,144 psi | 90% | 2129 fps | 98.6% |
| Accurate 2230 | <<locked>> | 86% | 52,736 psi | 85% | 2096 fps | 98.5% |
| Accurate 2460 | <<locked>> | 92% | 52,823 psi | 85% | 2077 fps | 100% |
| Accurate 2495ᴾ | <<locked>> | 100% | 49,342 psi | 79% | 2060 fps | 100% |
| Accurate 2520 | <<locked>> | 96% | 53,519 psi | 86% | 2119 fps | 100% |
| Accurate 4064ᴾ | <<locked>> | 100% | 45,803 psi | 73% | 2051 fps | 100% |
| Accurate LT-30 | <<locked>> | 88% | 53,417 psi | 86% | 1991 fps | 100% |
| Accurate LT-32 | <<locked>> | 88% | 53,882 psi | 86% | 2005 fps | 100% |
| ADI AR 2206Hᴾ | <<locked>> | 100% | 56,420 psi | 90% | 2156 fps | 99.3% |
| ADI AR 2207 | <<locked>> | 86% | 54,070 psi | 87% | 2005 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 47,747 psi | 77% | 2034 fps | 97.5% |
| ADI AR 2219 | <<locked>> | 90% | 55,608 psi | 89% | 2113 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 98% | 56,275 psi | 90% | 2126 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 98% | 54,099 psi | 87% | 2110 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 92% | 54,041 psi | 87% | 2165 fps | 99.5% |
| Alliant Power Pro 2000-MRᴾ | <<locked>> | 100% | 52,721 psi | 85% | 2188 fps | 98% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 45,774 psi | 73% | 2051 fps | 98.7% |
| Alliant Reloder-10x | <<locked>> | 92% | 54,795 psi | 88% | 2064 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 49,980 psi | 80% | 2100 fps | 98.1% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 40,901 psi | 66% | 2034 fps | 96.9% |
| Alliant Reloder-7 | <<locked>> | 86% | 55,419 psi | 89% | 2018 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 55,056 psi | 88% | 2028 fps | 100% |
| Baschieri & Pellagri 107ᴾ | <<locked>> | 100% | 56,231 psi | 90% | 2169 fps | 98.4% |
| Bofors RP3ᴾ | <<locked>> | 100% | 45,281 psi | 73% | 2057 fps | 98.7% |
| Hodgdon Benchmark | <<locked>> | 96% | 55,970 psi | 90% | 2083 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 98% | 54,041 psi | 87% | 2152 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 96% | 56,347 psi | 90% | 2218 fps | 99% |
| Hodgdon H322 | <<locked>> | 92% | 53,838 psi | 86% | 2096 fps | 100% |
| Hodgdon H335 | <<locked>> | 92% | 54,897 psi | 88% | 2119 fps | 100% |
| Hodgdon H380ᴾ | <<locked>> | 100% | 47,500 psi | 76% | 2060 fps | 96.3% |
| Hodgdon H4198 | <<locked>> | 86% | 55,434 psi | 89% | 2024 fps | 100% |
| Hodgdon H4895 | <<locked>> | 98% | 53,447 psi | 86% | 2126 fps | 99.3% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 51,387 psi | 82% | 2146 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,576 psi | 54% | 1201 fps | 100% |
| Hodgdon VARGETᴾ | <<locked>> | 100% | 55,332 psi | 89% | 2129 fps | 99.4% |
| IMR 3031ᴾ | <<locked>> | 100% | 54,679 psi | 88% | 2152 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 50,198 psi | 80% | 2057 fps | 98.1% |
| IMR 4198 | <<locked>> | 92% | 55,941 psi | 90% | 2034 fps | 100% |
| IMR 4227 | <<locked>> | 82% | 55,361 psi | 89% | 1965 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 51,111 psi | 82% | 2126 fps | 98.8% |
| IMR 8208 XBR | <<locked>> | 98% | 56,275 psi | 90% | 2126 fps | 99.8% |
| Lovex D073.4 | <<locked>> | 86% | 53,505 psi | 86% | 2087 fps | 100% |
| Lovex D073.5 | <<locked>> | 92% | 52,881 psi | 85% | 2083 fps | 99.9% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 54,534 psi | 87% | 2139 fps | 100% |
| Lovex S053 | <<locked>> | 82% | 54,085 psi | 87% | 1923 fps | 100% |
| Lovex S060 | <<locked>> | 98% | 54,549 psi | 87% | 2067 fps | 99% |
| Lovex S062ᴾ | <<locked>> | 100% | 49,066 psi | 79% | 2060 fps | 99.3% |
| Norma 200 | <<locked>> | 88% | 55,013 psi | 88% | 2047 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 55,172 psi | 88% | 2116 fps | 99.7% |
| Norma 202ᴾ | <<locked>> | 100% | 55,201 psi | 89% | 2123 fps | 100% |
| Norma 203Bᴾ | <<locked>> | 100% | 49,008 psi | 79% | 2093 fps | 98.5% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 49,530 psi | 79% | 2110 fps | 98.2% |
| Ramshot TAC | <<locked>> | 96% | 53,983 psi | 87% | 2100 fps | 96.7% |
| Ramshot Wild Boar | <<locked>> | 98% | 55,492 psi | 89% | 2152 fps | 99.1% |
| Ramshot X-Terminator | <<locked>> | 94% | 54,868 psi | 88% | 2093 fps | 98.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,576 psi | 54% | 1227 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 55,492 psi | 89% | 1998 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 53,127 psi | 85% | 2083 fps | 100% |
| ReloadSwiss RS 52ᴾ | <<locked>> | 100% | 52,591 psi | 84% | 2185 fps | 98.5% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 43,801 psi | 70% | 2090 fps | 99.5% |
| Rottweil R 901 | <<locked>> | 98% | 56,144 psi | 90% | 2103 fps | 100% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 52,011 psi | 83% | 2073 fps | 99.5% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 41,945 psi | 67% | 2005 fps | 97.9% |
| Shooters World AR Plus | <<locked>> | 86% | 53,505 psi | 86% | 2087 fps | 100% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 54,534 psi | 87% | 2139 fps | 100% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 49,066 psi | 79% | 2060 fps | 99.3% |
| Shooters World Tactical Rifle | <<locked>> | 90% | 53,780 psi | 86% | 2064 fps | 99.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 54,853 psi | 88% | 1808 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 56,028 psi | 90% | 2126 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 44,701 psi | 72% | 2054 fps | 97.5% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 55,854 psi | 90% | 2073 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 98% | 54,694 psi | 88% | 2113 fps | 97.4% |
| SNPE Vectan SP 9ᴾ | <<locked>> | 100% | 54,708 psi | 88% | 2133 fps | 99% |
| SNPE Vectan Tubal 3000 | <<locked>> | 98% | 55,013 psi | 88% | 2041 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 47,471 psi | 76% | 1972 fps | 100% |
| Somchem S321 | <<locked>> | 94% | 53,998 psi | 87% | 2123 fps | 99.8% |
| Somchem S335 | <<locked>> | 98% | 53,417 psi | 86% | 2044 fps | 100% |
| Somchem S341 | <<locked>> | 98% | 53,998 psi | 87% | 2113 fps | 98.8% |
| Somchem S355ᴾ | <<locked>> | 100% | 43,584 psi | 70% | 2014 fps | 98% |
| Vihtavuori N120 | <<locked>> | 86% | 54,041 psi | 87% | 1965 fps | 100% |
| Vihtavuori N130 | <<locked>> | 94% | 55,129 psi | 88% | 2024 fps | 100% |
| Vihtavuori N133 | <<locked>> | 98% | 54,375 psi | 87% | 2031 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 50,009 psi | 80% | 2054 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 52,112 psi | 84% | 2067 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 41,785 psi | 67% | 1965 fps | 98.7% |
| Vihtavuori N530 | <<locked>> | 96% | 53,548 psi | 86% | 2090 fps | 99.6% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 50,256 psi | 81% | 2070 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 39,001 psi | 63% | 1916 fps | 96.1% |
| Winchester 748 | <<locked>> | 98% | 54,984 psi | 88% | 2162 fps | 100% |
| Winchester StaBALL Matchᴾ | <<locked>> | 100% | 53,911 psi | 86% | 2142 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% | 49,139 psi | 79% | 1939 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 33,359 psi | 53% | 1791 fps | 99.9% |
| Accurate 2200 | <<locked>> | 80% | 43,410 psi | 70% | 1969 fps | 96.5% |
| Accurate 2230 | <<locked>> | 80% | 42,917 psi | 69% | 1972 fps | 96.8% |
| Accurate 2460 | <<locked>> | 80% | 35,520 psi | 57% | 1854 fps | 98.8% |
| Accurate 2495 | <<locked>> | 80% | 25,759 psi | 41% | 1716 fps | 99% |
| Accurate 2520 | <<locked>> | 80% | 31,125 psi | 50% | 1814 fps | 97.4% |
| Accurate 4064 | <<locked>> | 80% | 24,439 psi | 39% | 1696 fps | 96.2% |
| Accurate LT-30 | <<locked>> | 80% | 41,945 psi | 67% | 1857 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 42,337 psi | 68% | 1864 fps | 99.4% |
| ADI AR 2206H | <<locked>> | 84% | 34,519 psi | 55% | 1854 fps | 95% |
| ADI AR 2207 | <<locked>> | 80% | 45,063 psi | 72% | 1909 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 37,768 psi | 61% | 1890 fps | 95% |
| ADI AR 2219 | <<locked>> | 80% | 39,856 psi | 64% | 1929 fps | 99.9% |
| ADI Benchmark 8208 | <<locked>> | 80% | 32,401 psi | 52% | 1795 fps | 95.7% |
| Alliant AR-Comp | <<locked>> | 80% | 30,560 psi | 49% | 1808 fps | 100% |
| Alliant Power Pro 1200-R | 56.4 gr | 80% | 36,608 psi | 59% | 1926 fps | 96.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 40,582 psi | 65% | 2014 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 31,560 psi | 51% | 1827 fps | 95.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 38,159 psi | 61% | 1867 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 36,767 psi | 59% | 1913 fps | 95.1% |
| Alliant Reloder-17 | <<locked>> | 96% | 36,013 psi | 58% | 1949 fps | 95.2% |
| Alliant Reloder-7 | <<locked>> | 80% | 46,253 psi | 74% | 1923 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 40,234 psi | 65% | 1857 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 40,654 psi | 65% | 1969 fps | 95.4% |
| Bofors RP3 | <<locked>> | 90% | 32,605 psi | 52% | 1867 fps | 95.8% |
| Hodgdon Benchmark | <<locked>> | 80% | 34,925 psi | 56% | 1801 fps | 97.1% |
| Hodgdon BL-C2 | <<locked>> | 80% | 29,675 psi | 48% | 1798 fps | 95.6% |
| Hodgdon CFE223 | 64.6 gr | 84% | 37,855 psi | 61% | 1965 fps | 95.2% |
| Hodgdon H322 | <<locked>> | 80% | 36,535 psi | 59% | 1877 fps | 99.6% |
| Hodgdon H335 | <<locked>> | 80% | 36,956 psi | 59% | 1893 fps | 99.2% |
| Hodgdon H380 | <<locked>> | 98% | 44,570 psi | 71% | 2021 fps | 95.6% |
| Hodgdon H4198 | <<locked>> | 80% | 46,209 psi | 74% | 1919 fps | 100% |
| Hodgdon H4895 | <<locked>> | 82% | 32,605 psi | 52% | 1824 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 32,924 psi | 53% | 1867 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,801 psi | 40% | 1066 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 33,779 psi | 54% | 1831 fps | 95.2% |
| IMR 3031 | <<locked>> | 80% | 29,167 psi | 47% | 1795 fps | 99% |
| IMR 4064 | <<locked>> | 90% | 37,130 psi | 60% | 1877 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 39,595 psi | 63% | 1847 fps | 100% |
| IMR 4227 | <<locked>> | 80% | 52,170 psi | 84% | 1936 fps | 100% |
| IMR 4895 | <<locked>> | 88% | 35,230 psi | 56% | 1900 fps | 95.4% |
| IMR 8208 XBR | <<locked>> | 80% | 32,401 psi | 52% | 1795 fps | 95.7% |
| Lovex D073.4 | <<locked>> | 80% | 43,569 psi | 70% | 1969 fps | 99.5% |
| Lovex D073.5 | <<locked>> | 80% | 35,273 psi | 57% | 1850 fps | 97.7% |
| Lovex D073.6 | <<locked>> | 80% | 27,876 psi | 45% | 1762 fps | 96.3% |
| Lovex S053 | <<locked>> | 80% | 51,242 psi | 82% | 1893 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 36,129 psi | 58% | 1818 fps | 95.4% |
| Lovex S062 | <<locked>> | 84% | 30,182 psi | 48% | 1772 fps | 95.1% |
| Norma 200 | <<locked>> | 80% | 43,105 psi | 69% | 1916 fps | 100% |
| Norma 201 | <<locked>> | 80% | 30,023 psi | 48% | 1752 fps | 95% |
| Norma 202 | <<locked>> | 80% | 29,704 psi | 48% | 1768 fps | 97.6% |
| Norma 203B | <<locked>> | 90% | 35,969 psi | 58% | 1906 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 92% | 38,348 psi | 61% | 1952 fps | 95.7% |
| Ramshot TAC | <<locked>> | 92% | 47,340 psi | 76% | 2018 fps | 95.4% |
| Ramshot Wild Boar | <<locked>> | 84% | 35,259 psi | 57% | 1877 fps | 95.1% |
| Ramshot X-Terminator | <<locked>> | 82% | 37,565 psi | 60% | 1867 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,903 psi | 40% | 1096 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 52,417 psi | 84% | 1969 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 36,332 psi | 58% | 1860 fps | 98.3% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 37,927 psi | 61% | 1982 fps | 95.3% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 30,008 psi | 48% | 1837 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 33,417 psi | 54% | 1798 fps | 98.3% |
| Rottweil R 902 | <<locked>> | 82% | 30,284 psi | 49% | 1752 fps | 95% |
| Rottweil R 903 | <<locked>> | 92% | 32,561 psi | 52% | 1857 fps | 95.3% |
| Shooters World AR Plus | <<locked>> | 80% | 43,569 psi | 70% | 1969 fps | 99.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 27,876 psi | 45% | 1762 fps | 96.3% |
| Shooters World Precision | <<locked>> | 84% | 30,182 psi | 48% | 1772 fps | 95.1% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 38,522 psi | 62% | 1867 fps | 97.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 46,963 psi | 75% | 1732 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 40,451 psi | 65% | 1936 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 37,086 psi | 59% | 1936 fps | 95.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 38,682 psi | 62% | 1873 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 92% | 44,657 psi | 72% | 1995 fps | 95.4% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 35,259 psi | 57% | 1870 fps | 95.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 31,894 psi | 51% | 1736 fps | 98% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 25,817 psi | 41% | 1640 fps | 97.1% |
| Somchem S321 | 60.7 gr | 80% | 34,026 psi | 55% | 1847 fps | 96.7% |
| Somchem S335 | <<locked>> | 80% | 31,256 psi | 50% | 1745 fps | 98.6% |
| Somchem S341 | <<locked>> | 86% | 36,303 psi | 58% | 1880 fps | 95.3% |
| Somchem S355 | <<locked>> | 92% | 34,142 psi | 55% | 1867 fps | 95.5% |
| Vihtavuori N120 | <<locked>> | 80% | 45,150 psi | 72% | 1873 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 36,318 psi | 58% | 1801 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 31,705 psi | 51% | 1745 fps | 99.7% |
| Vihtavuori N135 | <<locked>> | 80% | 26,774 psi | 43% | 1719 fps | 99.1% |
| Vihtavuori N140 | <<locked>> | 80% | 28,079 psi | 45% | 1722 fps | 97.3% |
| Vihtavuori N150 | <<locked>> | 88% | 28,819 psi | 46% | 1752 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 31,995 psi | 51% | 1788 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 26,818 psi | 43% | 1709 fps | 96.2% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 36,622 psi | 59% | 1877 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 30,647 psi | 49% | 1811 fps | 96.1% |
| Winchester StaBALL Match | <<locked>> | 86% | 34,214 psi | 55% | 1867 fps | 95.5% |
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 Lott loaded with the .458 | 500gr | Hornady FMJ RN ENC. Hodgdon CFE223 delivers the highest muzzle velocity at 2,218 fps; across all powders the maximum-charge window runs from 1,201 fps to 2,218 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. The 500.0 gr projectile in 0.458" calls for a 1:23.5 twist; slower twists will usually not stabilise this weight. 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, Somchem S321 rank at the top here: for .458 Lott with the .458 | 500gr | Hornady FMJ RN ENC 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.