Load data for .223 Rem. + 55gr Sierra Tipped VarmintKing
The most recommended powders for this combination are ReloadSwiss RS 40.
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.

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
Cartridge:.223 Rem. load data
Case Length (L3):1.759" | 44.7 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.409" | 10.4 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:1:8.5
Get PRO license to unlock all data and calculators
Community Loads for .223 Rem. + 55gr Sierra Tipped VarmintKing
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) |
|---|---|---|---|---|---|
| 22.4 gr | 2.250" | 20.0" | 2812 fps | ••• | |
| 23.1 gr | 2.250" | 20.0" | 2889 fps | ••• | |
| 23.8 gr | 2.250" | 20.0" | 3020 fps | ••• | |
| ••• | 2.250" | 20.0" | 3044 fps | ••• | |
| ••• | 2.250" | 20.0" | 2988 fps | ••• | |
| ••• | 2.250" | 20.0" | 3074 fps | ••• | |
| ••• | 2.250" | 20.0" | 2811 fps | ••• | |
| ••• | 2.250" | 20.0" | 2887 fps | ••• | |
| ••• | 2.250" | 20.0" | 3008 fps | ••• | |
| ••• | 2.250" | 20.0" | 2880 fps | ••• | |
| ••• | 2.250" | 20.0" | 2966 fps | ••• | |
| ••• | 2.250" | 20.0" | 3054 fps | ••• | |
| ••• | 2.250" | 20.0" | 2975 fps | ••• | |
| ••• | 2.250" | 20.0" | 3048 fps | ••• | |
| ••• | 2.250" | 20.0" | 2809 fps | ••• | |
| ••• | 2.250" | 20.0" | 2886 fps | ••• | |
| ••• | 2.250" | 20.0" | 2966 fps | ••• | |
| ••• | 2.250" | 20.0" | 3045 fps | ••• | |
| ••• | 2.250" | 20.0" | 3084 fps | ••• | |
| ••• | 2.250" | 20.0" | 2836 fps | ••• | |
| ••• | 2.250" | 20.0" | 2896 fps | ••• | |
| ••• | 2.250" | 20.0" | 3012 fps | ••• | |
| ••• | 2.250" | 20.0" | 3016 fps | ••• | |
| ••• | 2.250" | 20.0" | 2965 fps | ••• | |
| ••• | 2.250" | 20.0" | 2962 fps | ••• | |
| ••• | 2.250" | 20.0" | 2814 fps | ••• | |
| ••• | 2.250" | 20.0" | 2881 fps | ••• | |
| ••• | 2.250" | 20.0" | 2949 fps | ••• | |
| ••• | 2.250" | 20.0" | 2765 fps | ••• | |
| ••• | 2.250" | 20.0" | 2904 fps | ••• | |
| ••• | 2.250" | 20.0" | 2930 fps | ••• | |
| ••• | 2.250" | 20.0" | 2758 fps | ••• | |
| ••• | 2.250" | 20.0" | 2846 fps | ••• | |
| ••• | 2.250" | 20.0" | 2737 fps | ••• | |
| ••• | 2.250" | 20.0" | 2781 fps | ••• | |
| ••• | 2.250" | 20.0" | 2847 fps | ••• | |
| ••• | 2.250" | 20.0" | 2959 fps | ••• | |
| ••• | 2.250" | 20.0" | 2843 fps | ••• | |
| ••• | 2.250" | 20.0" | 2848 fps | ••• | |
| ••• | 2.250" | 20.0" | 2954 fps | ••• | |
| ••• | 2.250" | 20.0" | 2955 fps | ••• | |
| ••• | 2.250" | 20.0" | 2834 fps | ••• | |
| ••• | 2.250" | 20.0" | 2794 fps | ••• | |
| ••• | 2.250" | 20.0" | 2862 fps | ••• | |
| ••• | 2.250" | 20.0" | 2929 fps | ••• | |
| ••• | 2.250" | 20.0" | 2868 fps | ••• | |
| ••• | 2.250" | 20.0" | 3095 fps | ••• | |
| ••• | 2.250" | 20.0" | 2850 fps | ••• | |
| ••• | 2.250" | 20.0" | 2919 fps | ••• | |
| ••• | 2.250" | 20.0" | 2991 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.