Load data for .270 Win. + 150gr Speer Boat-Tail
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
Bullet:.277 | 150gr | Boat-Tail
Cartridge:.270 Win. load data
Case Length (L3):2.540" | 64.5 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.484" | 12.3 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:1:11.5
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Community Loads for .270 Win. + 150gr Speer Boat-Tail
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) |
|---|---|---|---|---|---|
| 53.0 gr | 3.270" | — | 2615 fps | ••• | |
| 57.0 gr | 3.270" | — | 2807 fps | ••• | |
| 45.5 gr | 3.270" | — | 2569 fps | ••• | |
| ••• | 3.270" | — | 2805 fps | ••• | |
| ••• | 3.270" | — | 2776 fps | ••• | |
| ••• | 3.200" | 24.0" | 2849 fps | ••• | |
| ••• | 3.270" | — | 2550 fps | ••• | |
| ••• | 3.270" | — | 2746 fps | ••• | |
| ••• | 3.270" | — | 2505 fps | ••• | |
| ••• | 3.270" | — | 2708 fps | ••• | |
| ••• | 3.270" | — | 2522 fps | ••• | |
| ••• | 3.270" | — | 2755 fps | ••• | |
| ••• | 3.200" | 24.0" | 2936 fps | ••• | |
| ••• | 3.270" | — | 2774 fps | ••• | |
| ••• | 3.200" | 24.0" | 3007 fps | ••• | |
| ••• | 3.270" | — | 2528 fps | ••• | |
| ••• | 3.270" | — | 2723 fps | ••• | |
| ••• | 3.270" | — | 2631 fps | ••• | |
| ••• | 3.270" | — | 2823 fps | ••• | |
| ••• | 3.270" | — | 2671 fps | ••• | |
| ••• | 3.270" | — | 2872 fps | ••• | |
| ••• | 3.270" | — | 2690 fps | ••• | |
| ••• | 3.270" | — | 2589 fps | ••• | |
| ••• | 3.270" | — | 2776 fps | ••• | |
| ••• | 3.270" | — | 2742 fps | ••• | |
| ••• | 3.270" | — | 2581 fps | ••• | |
| ••• | 3.270" | — | 2766 fps | ••• | |
| ••• | 3.270" | — | 2675 fps | ••• | |
| ••• | 3.270" | — | 2867 fps | ••• | |
| ••• | 3.270" | — | 2633 fps | ••• | |
| ••• | 3.270" | — | 2875 fps | ••• | |
| ••• | 3.270" | — | 2692 fps | ••• | |
| ••• | 3.270" | — | 2904 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.