Load data for .220 Swift + 55gr Sierra SBT GameKing
Based on C.I.P., the max. allowed case length is 2.205 in / 56.01 mm, the max. cartridge length is 2.680 in / 68.07 mm, and the max. allowed pressure is 62,366 PSI / 4,300 bar.
Based on C.I.P., the max. allowed case length is 2.205 in / 56.01 mm, the max. cartridge length is 2.680 in / 68.07 mm, and the max. allowed pressure is 62,366 PSI / 4,300 bar.
Load Specifications
ImperialMetric
Bullet:.224 | 55gr | SBT GameKing
Cartridge:.220 Swift load data
Case Length (L3):2.205" | 56.0 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.245" | 6.2 mm
Case Capacity:47 gow | 3.05 cm³
Primer Size:Large Rifle (LR)
Max. Pressure (C.I.P.):62,366 psi | 4,300 bar
Barrel Length:24.0" | 610 mm
Min. Twist Rate:1:12.0
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Community Loads for .220 Swift + 55gr Sierra SBT 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) |
|---|---|---|---|---|---|
| 39.5 gr | 2.680" | 24.0" | 3410 fps | ••• | |
| 41.8 gr | 2.680" | 24.0" | 3629 fps | ••• | |
| 36.5 gr | 2.680" | 24.0" | 3241 fps | ••• | |
| ••• | 2.680" | 24.0" | 3364 fps | ••• | |
| ••• | 2.680" | 24.0" | 3480 fps | ••• | |
| ••• | 2.680" | 24.0" | 3582 fps | ••• | |
| ••• | 2.680" | 24.0" | 3630 fps | ••• | |
| ••• | 2.680" | 24.0" | 3225 fps | ••• | |
| ••• | 2.680" | 24.0" | 3343 fps | ••• | |
| ••• | 2.680" | 24.0" | 3453 fps | ••• | |
| ••• | 2.680" | 24.0" | 3500 fps | ••• | |
| ••• | 2.680" | 24.0" | 3032 fps | ••• | |
| ••• | 2.680" | 24.0" | 3162 fps | ••• | |
| ••• | 2.680" | 24.0" | 3282 fps | ••• | |
| ••• | 2.680" | 24.0" | 3393 fps | ••• | |
| ••• | 2.680" | 24.0" | 3509 fps | ••• | |
| ••• | 2.680" | 24.0" | 3612 fps | ••• | |
| ••• | 2.680" | 24.0" | 3093 fps | ••• | |
| ••• | 2.680" | 24.0" | 3201 fps | ••• | |
| ••• | 2.680" | 24.0" | 3305 fps | ••• | |
| ••• | 2.680" | 24.0" | 3404 fps | ••• | |
| ••• | 2.680" | 24.0" | 3508 fps | ••• | |
| ••• | 2.680" | 24.0" | 3553 fps | ••• | |
| ••• | 2.680" | 24.0" | 3322 fps | ••• | |
| ••• | 2.680" | 24.0" | 3470 fps | ••• | |
| ••• | 2.680" | 24.0" | 3175 fps | ••• | |
| ••• | 2.680" | 24.0" | 3278 fps | ••• | |
| ••• | 2.680" | 24.0" | 3401 fps | ••• | |
| ••• | 2.680" | 24.0" | 3285 fps | ••• | |
| ••• | 2.680" | 24.0" | 3404 fps | ••• | |
| ••• | 2.680" | 24.0" | 3514 fps | ••• | |
| ••• | 2.680" | 24.0" | 3622 fps | ••• | |
| ••• | 2.680" | 24.0" | 3209 fps | ••• | |
| ••• | 2.680" | 24.0" | 3297 fps | ••• | |
| ••• | 2.680" | 24.0" | 3400 fps | ••• | |
| ••• | 2.680" | 24.0" | 3522 fps | ••• | |
| ••• | 2.680" | 24.0" | 3240 fps | ••• | |
| ••• | 2.680" | 24.0" | 3347 fps | ••• | |
| ••• | 2.680" | 24.0" | 3452 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.