Load data for .300 Win. Mag. + 180gr Hornady SST InterLock
505 suitable loads across 87 powder(s) for cartridge .300 Win. Mag. with 180gr Hornady SST InterLock bullet.
The most recommended powders for this combination are Alliant Reloder-26, IMR 4350 and Norma MRP.
Based on C.I.P., the max. allowed case length is 2.620 in / 66.55 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 2.620 in / 66.55 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
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Community Loads for .300 Win. Mag. + 180gr Hornady SST InterLock
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) |
|---|---|---|---|---|---|
| 67.0 gr | 3.340" | 24.0" | 2933 fps | ••• | |
| 59.0 gr | 3.340" | 24.0" | 2789 fps | ••• | |
| 66.0 gr | 3.340" | 24.0" | 2802 fps | ••• | |
| ••• | 3.340" | 24.0" | 2890 fps | ••• | |
| ••• | 3.340" | 24.4" | 2851 fps | ••• | |
| ••• | 3.290" | 24.0" | 2789 fps | ••• | |
| ••• | 3.340" | 24.0" | 2772 fps | ••• | |
| ••• | 3.340" | 24.0" | 2779 fps | ••• | |
| ••• | 3.290" | 24.0" | 2805 fps | ••• | |
| ••• | 3.340" | 24.0" | 2789 fps | ••• | |
| ••• | 3.290" | 24.0" | 2828 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.