Load data for .300 WSM + 150gr Hornady SST InterLock L1.12
The most recommended powders for this combination are Alliant Power Pro 2000-MR, Accurate 4350 and Hodgdon Superformance.
Based on C.I.P., the max. allowed case length is 2.100 in / 53.34 mm, the max. cartridge length is 2.860 in / 72.64 mm, and the max. allowed pressure is 63,817 PSI / 4,400 bar.

Based on C.I.P., the max. allowed case length is 2.100 in / 53.34 mm, the max. cartridge length is 2.860 in / 72.64 mm, and the max. allowed pressure is 63,817 PSI / 4,400 bar.

Load Specifications
Get PRO license to unlock all data and calculators
Community Loads for .300 WSM + 150gr Hornady SST InterLock L1.12
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) |
|---|---|---|---|---|---|
| 65.0 gr | 2.800" | 24.0" | 3041 fps | ••• | |
| 71.5 gr | 2.840" | 24.0" | 3179 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.