Load data for .222 Rem. Mag. + 55gr Sierra HPBT GameKing
Based on C.I.P., the max. allowed case length is 1.850 in / 46.99 mm, the max. cartridge length is 2.280 in / 57.91 mm, and the max. allowed pressure is 58,740 PSI / 4,050 bar.

Based on C.I.P., the max. allowed case length is 1.850 in / 46.99 mm, the max. cartridge length is 2.280 in / 57.91 mm, and the max. allowed pressure is 58,740 PSI / 4,050 bar.

Load Specifications
ImperialMetric
Bullet:.224 | 55gr | HPBT GameKing
Cartridge:.222 Rem. Mag. load data
Case Length (L3):1.850" | 47.0 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.319" | 8.1 mm
Case Capacity:30.5 gow | 1.98 cm³
Primer Size:Small Rifle (SR)
Max. Pressure (C.I.P.):58,740 psi | 4,050 bar
Barrel Length:26.0" | 660 mm
Min. Twist Rate:1:12.0
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Community Loads for .222 Rem. Mag. + 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) |
|---|---|---|---|---|---|
| 21.6 gr | 2.250" | 24.0" | 2815 fps | ••• | |
| 22.9 gr | 2.250" | 24.0" | 2968 fps | ••• | |
| 24.0 gr | 2.250" | 24.0" | 3093 fps | ••• | |
| ••• | 2.250" | 24.0" | 3203 fps | ••• | |
| ••• | 2.250" | 24.0" | 3015 fps | ••• | |
| ••• | 2.250" | 24.0" | 3080 fps | ••• | |
| ••• | 2.250" | 24.0" | 3157 fps | ••• | |
| ••• | 2.250" | 24.0" | 3247 fps | ••• | |
| ••• | 2.250" | 24.0" | 3286 fps | ••• | |
| ••• | 2.250" | 24.0" | 2809 fps | ••• | |
| ••• | 2.250" | 24.0" | 2959 fps | ••• | |
| ••• | 2.250" | 24.0" | 3081 fps | ••• | |
| ••• | 2.250" | 24.0" | 3178 fps | ••• | |
| ••• | 2.250" | 24.0" | 3243 fps | ••• | |
| ••• | 2.250" | 24.0" | 2854 fps | ••• | |
| ••• | 2.250" | 24.0" | 2953 fps | ••• | |
| ••• | 2.250" | 24.0" | 3061 fps | ••• | |
| ••• | 2.250" | 24.0" | 3158 fps | ••• | |
| ••• | 2.250" | 24.0" | 3042 fps | ••• | |
| ••• | 2.250" | 24.0" | 3162 fps | ••• | |
| ••• | 2.250" | 24.0" | 3259 fps | ••• | |
| ••• | 2.250" | 24.0" | 3294 fps | ••• | |
| ••• | 2.250" | 24.0" | 2758 fps | ••• | |
| ••• | 2.250" | 24.0" | 2839 fps | ••• | |
| ••• | 2.250" | 24.0" | 2919 fps | ••• | |
| ••• | 2.250" | 24.0" | 2989 fps | ••• | |
| ••• | 2.250" | 24.0" | 3071 fps | ••• | |
| ••• | 2.250" | 24.0" | 3139 fps | ••• | |
| ••• | 2.250" | 24.0" | 3161 fps | ••• | |
| ••• | 2.250" | 24.0" | 2874 fps | ••• | |
| ••• | 2.250" | 24.0" | 2975 fps | ••• | |
| ••• | 2.250" | 24.0" | 3069 fps | ••• | |
| ••• | 2.250" | 24.0" | 3171 fps | ••• | |
| ••• | 2.250" | 24.0" | 3274 fps | ••• | |
| ••• | 2.250" | 24.0" | 2710 fps | ••• | |
| ••• | 2.250" | 24.0" | 2797 fps | ••• | |
| ••• | 2.250" | 24.0" | 2875 fps | ••• | |
| ••• | 2.250" | 24.0" | 2952 fps | ••• | |
| ••• | 2.250" | 24.0" | 2787 fps | ••• | |
| ••• | 2.250" | 24.0" | 2888 fps | ••• | |
| ••• | 2.250" | 24.0" | 2978 fps | ••• | |
| ••• | 2.250" | 24.0" | 3067 fps | ••• | |
| ••• | 2.250" | 24.0" | 3168 fps | ••• | |
| ••• | 2.250" | 24.0" | 3212 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.