Load data for .458 Lott + .458 | 465gr | Lehigh Defense Controlled Fracturing

.458 Lott cartridge drawing
Lehigh Defense logo

Load Specifications

Bullet Manufacturer:Lehigh Defense
Bullet Weight:465 gr
Bullet Diameter:0.458"
Bullet Length:<<locked>>
Case Length (l3):2.8"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:110 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:24"
Max. allowed Pressure:62,366 psi
Recommended Twist Rate:1:18.0

Load data in caliber .458 Lott with .458 | 465gr | Lehigh Defense Controlled Fracturing bullet and 72 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, Accurate 2230 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"

PowderChargeFRMaxP%V(0)z
Accurate 1680<<locked>>88%54,462 psi87%2034 fps100%
Accurate 2015ᴾ<<locked>>100%50,575 psi81%2067 fps100%
Accurate 2200<<locked>>92%53,809 psi86%2133 fps96.8%
Accurate 2230<<locked>>92%53,737 psi86%2139 fps97.1%
Accurate 2460<<locked>>98%52,649 psi84%2119 fps99.8%
Accurate 2495ᴾ<<locked>>100%38,116 psi61%1985 fps99.9%
Accurate 2520ᴾ<<locked>>100%49,168 psi79%2116 fps99.4%
Accurate 4064ᴾ<<locked>>100%35,549 psi57%1962 fps98.3%
Accurate LT-30<<locked>>94%55,143 psi88%2044 fps100%
Accurate LT-32<<locked>>94%55,680 psi89%2054 fps99.7%
ADI AR 2206Hᴾ<<locked>>100%46,847 psi75%2073 fps96.4%
ADI AR 2207<<locked>>92%54,621 psi88%2064 fps100%
ADI AR 2219<<locked>>94%52,910 psi85%2133 fps100%
ADI Benchmark 8208ᴾ<<locked>>100%50,154 psi80%2090 fps98.2%
Alliant AR-Compᴾ<<locked>>100%46,920 psi75%2090 fps100%
Alliant Power Pro 1200-R<<locked>>98%53,751 psi86%2201 fps98.4%
Alliant Reloder-10x<<locked>>98%54,621 psi88%2113 fps100%
Alliant Reloder-7<<locked>>92%56,333 psi90%2077 fps100%
Baschieri & Pellagri 106<<locked>>94%53,185 psi85%2047 fps100%
Hodgdon Benchmarkᴾ<<locked>>100%53,548 psi86%2087 fps99%
Hodgdon BL-C2ᴾ<<locked>>100%46,731 psi75%2106 fps98.3%
Hodgdon CFE223ᴾ<<locked>>100%53,214 psi85%2208 fps96.9%
Hodgdon H322<<locked>>98%54,244 psi87%2146 fps100%
Hodgdon H335<<locked>>98%55,680 psi89%2169 fps99.9%
Hodgdon H4198<<locked>>90%54,012 psi87%2044 fps100%
Hodgdon H4895ᴾ<<locked>>100%46,978 psi75%2083 fps97.1%
Hodgdon LEVERevolutionᴾ<<locked>>100%42,308 psi68%2054 fps96.2%
Hodgdon TrailBossᴾ<<locked>>100%32,140 psi52%1198 fps100%
Hodgdon VARGETᴾ<<locked>>100%46,369 psi74%2054 fps96.7%
IMR 3031ᴾ<<locked>>100%44,440 psi71%2087 fps100%
IMR 4198<<locked>>96%53,388 psi86%2057 fps100%
IMR 4227<<locked>>86%54,230 psi87%2001 fps100%
IMR 8208 XBRᴾ<<locked>>100%50,154 psi80%2090 fps98.2%
Lovex D073.4<<locked>>92%54,230 psi87%2136 fps99.6%
Lovex D073.5<<locked>>98%52,750 psi85%2123 fps99.2%
Lovex D073.6ᴾ<<locked>>100%43,308 psi69%2057 fps98.7%
Lovex S053<<locked>>88%55,840 psi90%1988 fps100%
Lovex S060ᴾ<<locked>>100%49,110 psi79%2031 fps96.7%
Lovex S062ᴾ<<locked>>100%39,958 psi64%1975 fps96.4%
Norma 200<<locked>>94%54,795 psi88%2096 fps100%
Norma 201ᴾ<<locked>>100%45,397 psi73%2037 fps97.5%
Norma 202ᴾ<<locked>>100%45,194 psi72%2051 fps99.3%
Ramshot Wild Boarᴾ<<locked>>100%48,921 psi78%2106 fps96.6%
Ramshot X-Terminatorᴾ<<locked>>100%56,159 psi90%2136 fps97.6%
ReloadSwiss RS 14ᴾ<<locked>>100%31,937 psi51%1227 fps100%
ReloadSwiss RS 36<<locked>>86%53,969 psi87%2031 fps100%
ReloadSwiss RS 40<<locked>>98%53,780 psi86%2129 fps99.5%
Rottweil R 901ᴾ<<locked>>100%49,356 psi79%2073 fps99.6%
Rottweil R 902ᴾ<<locked>>100%42,772 psi69%1995 fps96.9%
Shooters World AR Plus<<locked>>92%54,230 psi87%2136 fps99.6%
Shooters World Match Rifleᴾ<<locked>>100%43,308 psi69%2057 fps98.7%
Shooters World Precisionᴾ<<locked>>100%39,958 psi64%1975 fps96.4%
Shooters World Tactical Rifle<<locked>>96%55,245 psi89%2106 fps98.4%
SNPE Vectan BA6 1/2<<locked>>92%56,347 psi90%1867 fps100%
SNPE Vectan SP 10<<locked>>94%53,040 psi85%2136 fps99.8%
SNPE Vectan SP 3<<locked>>98%56,391 psi90%2126 fps100%
SNPE Vectan SP 9ᴾ<<locked>>100%45,179 psi72%2051 fps95.9%
SNPE Vectan Tubal 3000ᴾ<<locked>>100%49,313 psi79%2018 fps99.5%
SNPE Vectan Tubal 5000ᴾ<<locked>>100%39,349 psi63%1909 fps99.1%
Somchem S321ᴾ<<locked>>100%54,418 psi87%2162 fps99%
Somchem S335ᴾ<<locked>>100%47,340 psi76%2018 fps99.8%
Somchem S341ᴾ<<locked>>100%47,500 psi76%2064 fps96.1%
Vihtavuori N110<<locked>>82%54,839 psi88%1903 fps100%
Vihtavuori N120<<locked>>92%54,708 psi88%2024 fps100%
Vihtavuori N130ᴾ<<locked>>100%55,622 psi89%2077 fps100%
Vihtavuori N133ᴾ<<locked>>100%48,457 psi78%2014 fps100%
Vihtavuori N135ᴾ<<locked>>100%40,219 psi64%1991 fps100%
Vihtavuori N140ᴾ<<locked>>100%42,902 psi69%2001 fps99.2%
Vihtavuori N530ᴾ<<locked>>100%50,763 psi81%2090 fps98.3%
Vihtavuori N540ᴾ<<locked>>100%41,249 psi66%1998 fps98.6%
Winchester 748ᴾ<<locked>>100%48,472 psi78%2123 fps98.7%
Winchester StaBALL Matchᴾ<<locked>>100%44,309 psi71%2054 fps96.4%

Recommended = one of the top powders for this cartridge and bullet combination.

Start Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 1680<<locked>>80%42,018 psi67%1896 fps100%
Accurate 2015<<locked>>80%26,861 psi43%1719 fps97.7%
Accurate 2200<<locked>>88%47,210 psi76%2051 fps95.4%
Accurate 223061 gr88%46,470 psi75%2054 fps95.7%
Accurate 2460<<locked>>80%28,456 psi46%1768 fps95.1%
Accurate 2495<<locked>>82%20,610 psi33%1654 fps95.6%
Accurate 2520<<locked>>86%30,139 psi48%1841 fps95.4%
Accurate 4064<<locked>>90%25,570 psi41%1775 fps95%
Accurate LT-30<<locked>>80%36,085 psi58%1804 fps98.6%
Accurate LT-32<<locked>>80%36,535 psi59%1811 fps97%
ADI AR 2206H<<locked>>96%41,249 psi66%1998 fps95%
ADI AR 2207<<locked>>80%37,710 psi60%1870 fps100%
ADI AR 2219<<locked>>80%33,040 psi53%1860 fps97.9%
ADI Benchmark 8208<<locked>>90%36,695 psi59%1903 fps95.2%
Alliant AR-Comp<<locked>>80%24,874 psi40%1732 fps99.1%
Alliant Power Pro 1200-R56.4 gr88%38,740 psi62%2001 fps95.4%
Alliant Reloder-10x<<locked>>80%31,459 psi50%1811 fps99.6%
Alliant Reloder-7<<locked>>80%39,044 psi63%1877 fps100%
Baschieri & Pellagri 106<<locked>>80%33,895 psi54%1798 fps98.4%
Hodgdon Benchmark<<locked>>86%35,172 psi56%1837 fps95.4%
Hodgdon BL-C2<<locked>>92%35,679 psi57%1946 fps95.8%
Hodgdon CFE223<<locked>>96%46,441 psi74%2123 fps95.4%
Hodgdon H322<<locked>>80%30,313 psi49%1808 fps97.1%
Hodgdon H335<<locked>>80%30,414 psi49%1818 fps96%
Hodgdon H4198<<locked>>80%39,914 psi64%1870 fps98.9%
Hodgdon H4895<<locked>>94%38,783 psi62%1969 fps95.1%
Hodgdon LEVERevolution<<locked>>98%39,769 psi64%2011 fps95.5%
Hodgdon TrailBoss<<locked>>80%23,641 psi38%1070 fps100%
Hodgdon VARGET<<locked>>96%40,872 psi66%1975 fps95.4%
IMR 3031<<locked>>80%23,743 psi38%1706 fps95%
IMR 4198<<locked>>80%33,663 psi54%1804 fps100%
IMR 4227<<locked>>80%45,324 psi73%1906 fps100%
IMR 8208 XBR<<locked>>90%36,695 psi59%1903 fps95.2%
Lovex D073.4<<locked>>80%35,273 psi57%1890 fps96.7%
Lovex D073.5<<locked>>84%32,401 psi52%1844 fps95.1%
Lovex D073.6<<locked>>90%30,705 psi49%1860 fps95.5%
Lovex S053<<locked>>80%44,411 psi71%1870 fps100%
Lovex S060<<locked>>96%43,569 psi70%1959 fps95.5%
Lovex S062<<locked>>96%35,230 psi56%1903 fps95%
Norma 200<<locked>>80%35,259 psi57%1860 fps100%
Norma 201<<locked>>92%35,360 psi57%1890 fps95%
Norma 202<<locked>>86%29,022 psi47%1795 fps95.6%
Ramshot Wild Boar<<locked>>96%42,946 psi69%2028 fps95.3%
Ramshot X-Terminator<<locked>>92%43,265 psi69%1978 fps95.1%
ReloadSwiss RS 14<<locked>>80%23,424 psi38%1093 fps100%
ReloadSwiss RS 36<<locked>>80%44,976 psi72%1936 fps100%
ReloadSwiss RS 40<<locked>>82%32,111 psi51%1827 fps95.4%
Rottweil R 901<<locked>>82%28,761 psi46%1755 fps95.2%
Rottweil R 902<<locked>>94%35,563 psi57%1886 fps95%
Shooters World AR Plus<<locked>>80%35,273 psi57%1890 fps96.7%
Shooters World Match Rifle<<locked>>90%30,705 psi49%1860 fps95.5%
Shooters World Precision<<locked>>96%35,230 psi56%1903 fps95%
Shooters World Tactical Rifle<<locked>>86%39,218 psi63%1909 fps95.4%
SNPE Vectan BA6 1/2<<locked>>80%41,205 psi66%1716 fps100%
SNPE Vectan SP 1054.8 gr80%33,359 psi53%1864 fps96.9%
SNPE Vectan SP 3<<locked>>80%32,198 psi52%1811 fps98.5%
SNPE Vectan SP 9<<locked>>98%42,453 psi68%2011 fps95.2%
SNPE Vectan Tubal 3000<<locked>>82%28,210 psi45%1703 fps95%
SNPE Vectan Tubal 5000<<locked>>86%25,730 psi41%1670 fps95.1%
Somchem S321<<locked>>88%36,303 psi58%1926 fps95.6%
Somchem S335<<locked>>80%25,541 psi41%1670 fps95%
Somchem S341<<locked>>98%44,541 psi71%2028 fps95.4%
Vihtavuori N110<<locked>>80%51,779 psi83%1873 fps100%
Vihtavuori N120<<locked>>80%37,927 psi61%1841 fps100%
Vihtavuori N130<<locked>>80%30,342 psi49%1749 fps99.2%
Vihtavuori N133<<locked>>80%26,353 psi42%1683 fps97.2%
Vihtavuori N135<<locked>>80%21,611 psi35%1637 fps95.3%
Vihtavuori N140<<locked>>86%27,702 psi44%1749 fps95.3%
Vihtavuori N530<<locked>>90%36,434 psi58%1900 fps95.2%
Vihtavuori N540<<locked>>90%29,979 psi48%1811 fps95.6%
Winchester 748<<locked>>90%34,795 psi56%1919 fps95.6%
Winchester StaBALL Match<<locked>>98%41,539 psi67%2014 fps95.7%

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.

<<locked>> you need an access license to unlock this data.

This overview compares 72 powders for .458 Lott loaded with the .458 | 465gr | Lehigh Defense Controlled Fracturing. Hodgdon CFE223 delivers the highest muzzle velocity at 2,208 fps; across all powders the maximum-charge window runs from 1,198 fps to 2,208 fps. Accurate 2015 gives the best case fill at 100 %, and 72 of the 72 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. The 465.0 gr projectile in 0.458" calls for a 1:18.0 twist; slower twists will usually not stabilise this weight. 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, Accurate 2230, SNPE Vectan SP 10 rank at the top here: for .458 Lott with the .458 | 465gr | Lehigh Defense Controlled Fracturing 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.

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