Load data for .22-250 Rem. + 55gr Sierra SP SemiSp
542 suitable loads across 95 powder(s) for cartridge .22-250 Rem. with 55gr Sierra SP SemiSp bullet.
The most recommended powders for this combination are ReloadSwiss RS 60, Ramshot Big Game and IMR 3031.
Based on C.I.P., the max. allowed case length is 1.908 in / 48.46 mm, the max. cartridge length is 2.350 in / 59.69 mm, and the max. allowed pressure is 58,740 PSI / 4,050 bar.
Based on C.I.P., the max. allowed case length is 1.908 in / 48.46 mm, the max. cartridge length is 2.350 in / 59.69 mm, and the max. allowed pressure is 58,740 PSI / 4,050 bar.
Load Specifications
ImperialMetric
Bullet:.224 | 55gr | SP SemiSp
Cartridge:.22-250 Rem. load data
Case Length (L3):1.912" | 48.6 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.287" | 7.3 mm
Case Capacity:43.49 gow | 2.82 cm³
Primer Size:Large Rifle (LR)
Max. Pressure (C.I.P.):58,740 psi | 4,050 bar
Barrel Length:24.0" | 610 mm
Min. Twist Rate:1:13.0
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