Load data for .223 Ackley Improved + 45gr Sierra VarmintKing
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 | 45gr | VarmintKing
Cartridge:.223 Ackley Improved load data
Case Length (L3):1.760" | 44.7 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.125" | 3.2 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:Stabilizes in any common twist
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Community Loads for .223 Ackley Improved + 45gr Sierra 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) |
|---|---|---|---|---|---|
| 23.5 gr | 2.260" | 24.0" | 2990 fps | ••• | |
| 24.3 gr | 2.260" | 24.0" | 3077 fps | ••• | |
| 25.1 gr | 2.260" | 24.0" | 3165 fps | ••• | |
| ••• | 2.260" | 24.0" | 3262 fps | ••• | |
| ••• | 2.260" | 24.0" | 3360 fps | ••• | |
| ••• | 2.260" | 24.0" | 3044 fps | ••• | |
| ••• | 2.260" | 24.0" | 3149 fps | ••• | |
| ••• | 2.260" | 24.0" | 3250 fps | ••• | |
| ••• | 2.260" | 24.0" | 3353 fps | ••• | |
| ••• | 2.260" | 24.0" | 3453 fps | ••• | |
| ••• | 2.260" | 24.0" | 3109 fps | ••• | |
| ••• | 2.260" | 24.0" | 3188 fps | ••• | |
| ••• | 2.260" | 24.0" | 3286 fps | ••• | |
| ••• | 2.260" | 24.0" | 3372 fps | ••• | |
| ••• | 2.260" | 24.0" | 3469 fps | ••• | |
| ••• | 2.260" | 24.0" | 3205 fps | ••• | |
| ••• | 2.260" | 24.0" | 3299 fps | ••• | |
| ••• | 2.260" | 24.0" | 3394 fps | ••• | |
| ••• | 2.260" | 24.0" | 3072 fps | ••• | |
| ••• | 2.260" | 24.0" | 3147 fps | ••• | |
| ••• | 2.260" | 24.0" | 3230 fps | ••• | |
| ••• | 2.260" | 24.0" | 3304 fps | ••• | |
| ••• | 2.260" | 24.0" | 3379 fps | ••• | |
| ••• | 2.260" | 24.0" | 3123 fps | ••• | |
| ••• | 2.260" | 24.0" | 3211 fps | ••• | |
| ••• | 2.260" | 24.0" | 3298 fps | ••• | |
| ••• | 2.260" | 24.0" | 3383 fps | ••• | |
| ••• | 2.260" | 24.0" | 3460 fps | ••• | |
| ••• | 2.260" | 24.0" | 3192 fps | ••• | |
| ••• | 2.260" | 24.0" | 3270 fps | ••• | |
| ••• | 2.260" | 24.0" | 3360 fps | ••• | |
| ••• | 2.260" | 24.0" | 3463 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.