Load data for .303 Sporting + 150gr Speer Hot-Cor
424 suitable loads across 73 powder(s) for cartridge .303 Sporting with 150gr Speer Hot-Cor bullet.
The most recommended powders for this combination are IMR 3031, Winchester 748 and Alliant AR-Comp.
Based on C.I.P., the max. allowed case length is 2.080 in / 52.82 mm, the max. cartridge length is 2.933 in / 74.49 mm, and the max. allowed pressure is 47,863 PSI / 3,300 bar.
Based on C.I.P., the max. allowed case length is 2.080 in / 52.82 mm, the max. cartridge length is 2.933 in / 74.49 mm, and the max. allowed pressure is 47,863 PSI / 3,300 bar.
Load Specifications
ImperialMetric
Bullet:.311 | 150gr | Hot-Cor
Cartridge:.303 Sporting load data
Case Length (L3):2.080" | 52.8 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.311" | 7.9 mm
Case Capacity:52.3 gow | 3.39 cm³
Primer Size:Large Rifle (LR)
Max. Pressure (C.I.P.):47,863 psi | 3,300 bar
Barrel Length:25.0" | 635 mm
Min. Twist Rate:1:16.5
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