Load data for .223 WSSM + 77gr Barnes Match Burner BT
537 suitable loads across 89 powder(s) for cartridge .223 WSSM with 77gr Barnes Match Burner BT bullet.
The most recommended powders for this combination are Alliant Reloder-26, Accurate High Country and Norma MRP.
Based on C.I.P., the max. allowed case length is 1.670 in / 42.42 mm, the max. cartridge length is 2.360 in / 59.94 mm, and the max. allowed pressure is 63,817 PSI / 4,400 bar.
Based on C.I.P., the max. allowed case length is 1.670 in / 42.42 mm, the max. cartridge length is 2.360 in / 59.94 mm, and the max. allowed pressure is 63,817 PSI / 4,400 bar.
Load Specifications
ImperialMetric
Cartridge:.223 WSSM load data
Case Length (L3):1.663" | 42.2 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.328" | 8.3 mm
Case Capacity:53.7 gow | 3.48 cm³
Primer Size:Large Rifle (LR)
Max. Pressure (C.I.P.):63,817 psi | 4,400 bar
Barrel Length:24.0" | 610 mm
Min. Twist Rate:1:9.0
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