Load data for .223 Rem. + 55gr Sierra SP BlitzKing

308 suitable loads across 50 powder(s) for cartridge .223 Rem. with 55gr Sierra SP BlitzKing bullet.

The most recommended powders for this combination are Hodgdon H322, Alliant AR-Comp and Alliant Reloder-10x.

Based on SAAMI, the max. allowed case length is 1.760 in / 44.70 mm, the max. cartridge length is 2.260 in / 57.40 mm, and the max. allowed pressure is 55,000 PSI / 3,792 bar.

Load Specifications

ImperialMetric

Bullet:.224 | 55gr | SP BlitzKing

Cartridge:.223 Rem. load data

Case Length (L3):1.759" | 44.7 mm

Cartridge Length (COL/L6):•••

Seated Depth:0.366" | 9.3 mm

Case Capacity:30 gow | 1.94 cm³

Primer Size:Small Rifle (SR)

Max. Pressure (SAAMI):55,000 psi | 3,792 bar

Barrel Length:24.0" | 610 mm

Min. Twist Rate:1:10.0

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Community Loads for .223 Rem. + 55gr Sierra SP BlitzKing

Real loads for this combination shared by our community. Charge weights are only fully visible with an active Pro licence.

Charge (gr)	C.O.L.	Barrel Length	Velocity (fps)	Pressure (psi)

26.0 gr	2.260"	20.0"	3009 fps	•••

23.1 gr	2.268"	18.0"	2667 fps	•••
24.0 gr	2.260"	23.6"	2976 fps	•••
•••	2.260"	23.6"	3077 fps	•••

Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.