Load data for .223 Ackley Improved + 55gr Sierra HPBT GameKing
Based on Wildcat, 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 55,114 PSI / 3,800 bar.
Based on Wildcat, 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 55,114 PSI / 3,800 bar.
Load Specifications
ImperialMetric
Bullet:.224 | 55gr | HPBT GameKing
Cartridge:.223 Ackley Improved load data
Case Length (L3):1.760" | 44.7 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.254" | 6.5 mm
Case Capacity:32.4 gow | 2.10 cm³
Primer Size:Small Rifle (SR)
Max. Pressure (Wildcat):55,114 psi | 3,800 bar
Barrel Length:24.0" | 610 mm
Min. Twist Rate:1:12.0
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Community Loads for .223 Ackley Improved + 55gr Sierra HPBT GameKing
Real loads for this combination shared by our community. Charge weights are only fully visible with an active Pro licence.
| Powder | Charge (gr) | C.O.L. | Barrel Length | Velocity (fps) | Pressure (psi) |
|---|---|---|---|---|---|
| 22.5 gr | 2.225" | 24.0" | 2834 fps | ••• | |
| 23.3 gr | 2.225" | 24.0" | 2923 fps | ••• | |
| 24.1 gr | 2.225" | 24.0" | 3010 fps | ••• | |
| ••• | 2.225" | 24.0" | 3104 fps | ••• | |
| ••• | 2.225" | 24.0" | 3187 fps | ••• | |
| ••• | 2.225" | 24.0" | 3006 fps | ••• | |
| ••• | 2.225" | 24.0" | 3124 fps | ••• | |
| ••• | 2.225" | 24.0" | 2943 fps | ••• | |
| ••• | 2.225" | 24.0" | 3029 fps | ••• | |
| ••• | 2.225" | 24.0" | 3121 fps | ••• | |
| ••• | 2.225" | 24.0" | 3201 fps | ••• | |
| ••• | 2.225" | 24.0" | 2814 fps | ••• | |
| ••• | 2.225" | 24.0" | 2900 fps | ••• | |
| ••• | 2.225" | 24.0" | 2999 fps | ••• | |
| ••• | 2.225" | 24.0" | 3086 fps | ••• | |
| ••• | 2.225" | 24.0" | 3195 fps | ••• | |
| ••• | 2.225" | 24.0" | 2781 fps | ••• | |
| ••• | 2.225" | 24.0" | 2896 fps | ••• | |
| ••• | 2.225" | 24.0" | 2998 fps | ••• | |
| ••• | 2.225" | 24.0" | 3091 fps | ••• | |
| ••• | 2.225" | 24.0" | 3182 fps | ••• | |
| ••• | 2.225" | 24.0" | 3005 fps | ••• | |
| ••• | 2.225" | 24.0" | 3095 fps | ••• | |
| ••• | 2.225" | 24.0" | 3174 fps | ••• | |
| ••• | 2.225" | 24.0" | 3252 fps | ••• | |
| ••• | 2.225" | 24.0" | 2732 fps | ••• | |
| ••• | 2.225" | 24.0" | 2850 fps | ••• | |
| ••• | 2.225" | 24.0" | 2947 fps | ••• | |
| ••• | 2.225" | 24.0" | 3035 fps | ••• | |
| ••• | 2.225" | 24.0" | 2933 fps | ••• | |
| ••• | 2.225" | 24.0" | 3017 fps | ••• | |
| ••• | 2.225" | 24.0" | 3104 fps | ••• | |
| ••• | 2.225" | 24.0" | 3188 fps | ••• | |
| ••• | 2.225" | 24.0" | 3263 fps | ••• | |
| ••• | 2.225" | 24.0" | 2698 fps | ••• | |
| ••• | 2.225" | 24.0" | 2791 fps | ••• | |
| ••• | 2.225" | 24.0" | 2884 fps | ••• | |
| ••• | 2.225" | 24.0" | 2797 fps | ••• | |
| ••• | 2.225" | 24.0" | 2886 fps | ••• | |
| ••• | 2.225" | 24.0" | 2973 fps | ••• | |
| ••• | 2.225" | 24.0" | 3072 fps | ••• | |
| ••• | 2.225" | 24.0" | 2822 fps | ••• | |
| ••• | 2.225" | 24.0" | 2928 fps | ••• | |
| ••• | 2.225" | 24.0" | 3013 fps | ••• | |
| ••• | 2.225" | 24.0" | 3107 fps | ••• | |
| ••• | 2.225" | 24.0" | 3181 fps | ••• | |
| ••• | 2.225" | 24.0" | 2851 fps | ••• | |
| ••• | 2.225" | 24.0" | 2938 fps | ••• | |
| ••• | 2.225" | 24.0" | 3014 fps | ••• | |
| ••• | 2.225" | 24.0" | 3091 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.