Load data for .458 Win.Mag. + 500gr Remington FMC RN

512 suitable loads across 88 powder(s) for cartridge .458 Win.Mag. with 500gr Remington FMC RN bullet.

The most recommended powders for this combination are Hodgdon CFE223, Alliant Power Pro 1200-R and Winchester 748.

.458 Win.Mag. cartridge with combo bulletSeated DepthL3 = 2.500 in / 63.50 mmL6 = 3.340 in / 84.84 mmSeated Depth = .160 in / 4.06 mm

Based on C.I.P., the max. allowed case length is 2.500 in / 63.50 mm, the max. cartridge length is 3.340 in / 84.84 mm, and the max. allowed pressure is 62,366 PSI / 4,300 bar.

Load Specifications

ImperialMetric
Case Length (L3):2.500" | 63.5 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.458" | 11.6 mm
Case Capacity:95 gow | 6.16 cm³
Primer Size:Large Rifle Magnum (LRM)
Max. Pressure (C.I.P.):62,366 psi | 4,300 bar
Barrel Length:24.0" | 610 mm
Min. Twist Rate:Stabilizes in any common twist

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