Load data for .303 British + 180gr Speer Hot-Cor
The most recommended powders for this combination are Alliant Reloder- TS 15.5.
Based on C.I.P., the max. allowed case length is 2.222 in / 56.44 mm, the max. cartridge length is 3.075 in / 78.11 mm, and the max. allowed pressure is 52,939 PSI / 3,650 bar.

Based on C.I.P., the max. allowed case length is 2.222 in / 56.44 mm, the max. cartridge length is 3.075 in / 78.11 mm, and the max. allowed pressure is 52,939 PSI / 3,650 bar.

Load Specifications
ImperialMetric
Bullet:.311 | 180gr | Hot-Cor
Cartridge:.303 British load data
Case Length (L3):2.213" | 56.2 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.208" | 5.3 mm
Case Capacity:56 gow | 3.63 cm³
Primer Size:Large Rifle (LR)
Max. Pressure (C.I.P.):52,939 psi | 3,650 bar
Barrel Length:25.0" | 635 mm
Min. Twist Rate:1:17.0
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Community Loads for .303 British + 180gr Speer Hot-Cor
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) |
|---|---|---|---|---|---|
| 39.0 gr | 3.075" | — | 2299 fps | ••• | |
| 42.0 gr | 3.075" | — | 2446 fps | ••• | |
| 41.0 gr | 3.075" | — | 2437 fps | ••• | |
| ••• | 3.075" | — | 2238 fps | ••• | |
| ••• | 3.075" | — | 2437 fps | ••• | |
| ••• | 3.075" | — | 2426 fps | ••• | |
| ••• | 3.075" | — | 2260 fps | ••• | |
| ••• | 3.075" | — | 2460 fps | ••• | |
| ••• | 3.075" | — | 2275 fps | ••• | |
| ••• | 3.075" | — | 2460 fps | ••• | |
| ••• | 3.075" | — | 2303 fps | ••• | |
| ••• | 3.075" | — | 2510 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.