Load data for .270 Weath. Mag. + 135gr Sierra MatchKing
Based on C.I.P., the max. allowed case length is 2.549 in / 64.74 mm, the max. cartridge length is 3.295 in / 83.69 mm, and the max. allowed pressure is 63,817 PSI / 4,400 bar.

Based on C.I.P., the max. allowed case length is 2.549 in / 64.74 mm, the max. cartridge length is 3.295 in / 83.69 mm, and the max. allowed pressure is 63,817 PSI / 4,400 bar.

Load Specifications
ImperialMetric
Bullet:.277 | 135gr | MatchKing
Cartridge:.270 Weath. Mag. load data
Case Length (L3):2.549" | 64.7 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.581" | 14.8 mm
Case Capacity:82 gow | 5.31 cm³
Primer Size:Large Rifle Magnum (LRM)
Max. Pressure (C.I.P.):63,817 psi | 4,400 bar
Barrel Length:26.0" | 660 mm
Min. Twist Rate:1:10.0
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Community Loads for .270 Weath. Mag. + 135gr Sierra MatchKing
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) |
|---|---|---|---|---|---|
| 62.8 gr | 3.295" | 24.0" | 2861 fps | ••• | |
| 63.7 gr | 3.295" | 24.0" | 2898 fps | ••• | |
| 64.7 gr | 3.295" | 24.0" | 2938 fps | ••• | |
| ••• | 3.295" | 24.0" | 2976 fps | ••• | |
| ••• | 3.295" | 24.0" | 3044 fps | ••• | |
| ••• | 3.295" | 24.0" | 3072 fps | ••• | |
| ••• | 3.295" | 24.0" | 3106 fps | ••• | |
| ••• | 3.295" | 24.0" | 3139 fps | ••• | |
| ••• | 3.295" | 24.0" | 2974 fps | ••• | |
| ••• | 3.295" | 24.0" | 3003 fps | ••• | |
| ••• | 3.295" | 24.0" | 3035 fps | ••• | |
| ••• | 3.295" | 24.0" | 3070 fps | ••• | |
| ••• | 3.295" | 24.0" | 2899 fps | ••• | |
| ••• | 3.295" | 24.0" | 2946 fps | ••• | |
| ••• | 3.295" | 24.0" | 2990 fps | ••• | |
| ••• | 3.295" | 24.0" | 3038 fps | ••• | |
| ••• | 3.295" | 24.0" | 2807 fps | ••• | |
| ••• | 3.295" | 24.0" | 2872 fps | ••• | |
| ••• | 3.295" | 24.0" | 2925 fps | ••• | |
| ••• | 3.295" | 24.0" | 2979 fps | ••• | |
| ••• | 3.295" | 24.0" | 2912 fps | ••• | |
| ••• | 3.295" | 24.0" | 2960 fps | ••• | |
| ••• | 3.295" | 24.0" | 3006 fps | ••• | |
| ••• | 3.295" | 24.0" | 3050 fps | ••• | |
| ••• | 3.295" | 24.0" | 3044 fps | ••• | |
| ••• | 3.295" | 24.0" | 3089 fps | ••• | |
| ••• | 3.295" | 24.0" | 3139 fps | ••• | |
| ••• | 3.295" | 24.0" | 3186 fps | ••• | |
| ••• | 3.295" | 24.0" | 2840 fps | ••• | |
| ••• | 3.295" | 24.0" | 2886 fps | ••• | |
| ••• | 3.295" | 24.0" | 2931 fps | ••• | |
| ••• | 3.295" | 24.0" | 2977 fps | ••• | |
| ••• | 3.295" | 24.0" | 2940 fps | ••• | |
| ••• | 3.295" | 24.0" | 2982 fps | ••• | |
| ••• | 3.295" | 24.0" | 3021 fps | ••• | |
| ••• | 3.295" | 24.0" | 2950 fps | ••• | |
| ••• | 3.295" | 24.0" | 2989 fps | ••• | |
| ••• | 3.295" | 24.0" | 3022 fps | ••• | |
| ••• | 3.295" | 24.0" | 2876 fps | ••• | |
| ••• | 3.295" | 24.0" | 2911 fps | ••• | |
| ••• | 3.295" | 24.0" | 2952 fps | ••• | |
| ••• | 3.295" | 24.0" | 2995 fps | ••• | |
| ••• | 3.295" | 24.0" | 2954 fps | ••• | |
| ••• | 3.295" | 24.0" | 2989 fps | ••• | |
| ••• | 3.295" | 24.0" | 3023 fps | ••• | |
| ••• | 3.268" | 25.5" | 3167 fps | ••• | |
| ••• | 3.295" | 24.0" | 2942 fps | ••• | |
| ••• | 3.295" | 24.0" | 2982 fps | ••• | |
| ••• | 3.295" | 24.0" | 3026 fps | ••• | |
| ••• | 3.295" | 24.0" | 3066 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.