Load data for .38-55 Win. + 255gr ACME RNFP COATED
30 suitable loads across 7 powder(s) for cartridge .38-55 Win. with 255gr ACME RNFP COATED bullet.
The most recommended powders for this combination are ADI AR 2207, Vihtavuori N120 and ReloadSwiss RS 14.
Based on C.I.P., the max. allowed case length is 2.085 in / 52.96 mm, the max. cartridge length is 2.510 in / 63.75 mm, and the max. allowed pressure is 34,809 PSI / 2,400 bar.
Based on C.I.P., the max. allowed case length is 2.085 in / 52.96 mm, the max. cartridge length is 2.510 in / 63.75 mm, and the max. allowed pressure is 34,809 PSI / 2,400 bar.
Load Specifications
ImperialMetric
Bullet:.378 | 255gr | RNFP COATED
Cartridge:.38-55 Win. load data
Case Length (L3):2.085" | 53.0 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.534" | 13.6 mm
Case Capacity:52 gow | 3.37 cm³
Primer Size:Large Rifle (LR)
Max. Pressure (C.I.P.):34,809 psi | 2,400 bar
Barrel Length:20.0" | 508 mm
Min. Twist Rate:Stabilizes in any common twist
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