Load data for .338 ARC + 200gr Hornady SST InterLock
Based on SAAMI, the max. allowed case length is 1.300 in / 33.02 mm, the max. cartridge length is 2.260 in / 57.40 mm, and the max. allowed pressure is 52,000 PSI / 3,585 bar.

Based on SAAMI, the max. allowed case length is 1.300 in / 33.02 mm, the max. cartridge length is 2.260 in / 57.40 mm, and the max. allowed pressure is 52,000 PSI / 3,585 bar.

Load Specifications
ImperialMetric
Bullet:.338 | 200gr | SST InterLock
Cartridge:.338 ARC load data
Case Length (L3):1.300" | 33.0 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.501" | 12.7 mm
Case Capacity:33.5 gow | 2.17 cm³
Primer Size:Small Rifle (SR)
Max. Pressure (SAAMI):52,000 psi | 3,585 bar
Barrel Length:16.0" | 406 mm
Min. Twist Rate:1:13.5
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Community Loads for .338 ARC + 200gr 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) |
|---|---|---|---|---|---|
| 21.6 gr | 2.150" | 16.0" | 1715 fps | ••• | |
| 22.4 gr | 2.150" | 16.0" | 1732 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.