Load data for .375 Ruger + 270gr Speer Boat-Tail
Based on C.I.P., the max. allowed case length is 2.580 in / 65.53 mm, the max. cartridge length is 3.340 in / 84.84 mm, and the max. allowed pressure is 62,076 PSI / 4,280 bar.

Based on C.I.P., the max. allowed case length is 2.580 in / 65.53 mm, the max. cartridge length is 3.340 in / 84.84 mm, and the max. allowed pressure is 62,076 PSI / 4,280 bar.

Load Specifications
ImperialMetric
Bullet:.375 | 270gr | Boat-Tail
Cartridge:.375 Ruger load data
Case Length (L3):2.572" | 65.3 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.552" | 14.0 mm
Case Capacity:99 gow | 6.42 cm³
Primer Size:Large Rifle Magnum (LRM)
Max. Pressure (C.I.P.):62,076 psi | 4,280 bar
Barrel Length:23.0" | 584 mm
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Community Loads for .375 Ruger + 270gr 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) |
|---|---|---|---|---|---|
| 73.8 gr | 3.320" | — | 2626 fps | ••• | |
| 69.4 gr | 3.320" | — | 2525 fps | ••• | |
| 78.8 gr | 3.320" | — | 2683 fps | ••• | |
| ••• | 3.320" | — | 2509 fps | ••• | |
| ••• | 3.320" | — | 2761 fps | ••• | |
| ••• | 3.320" | — | 2651 fps | ••• | |
| ••• | 3.320" | — | 2533 fps | ••• | |
| ••• | 3.320" | — | 2638 fps | ••• | |
| ••• | 3.320" | — | 2586 fps | ••• | |
| ••• | 3.320" | — | 2658 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.