Load data for .270 Win. + 135gr Sierra Hollow Point Boat Tail (HPBT)
Based on C.I.P., the max. allowed case length is 2.540 in / 64.52 mm, the max. cartridge length is 3.340 in / 84.84 mm, and the max. allowed pressure is 62,366 PSI / 4,300 bar.
Based on C.I.P., the max. allowed case length is 2.540 in / 64.52 mm, the max. cartridge length is 3.340 in / 84.84 mm, and the max. allowed pressure is 62,366 PSI / 4,300 bar.
Load Specifications
ImperialMetric
Cartridge:.270 Win. load data
Case Length (L3):2.540" | 64.5 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.450" | 11.4 mm
Case Capacity:67 gow | 4.34 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:1:10.5
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Community Loads for .270 Win. + 135gr Sierra Hollow Point Boat Tail (HPBT)
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) |
|---|---|---|---|---|---|
| 41.0 gr | 3.340" | 15.0" | 2448 fps | ••• | |
| 41.0 gr | 3.340" | 15.0" | 2365 fps | ••• | |
| 45.0 gr | 3.340" | 15.0" | 2580 fps | ••• | |
| ••• | 3.340" | 15.0" | 2522 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.