Load data for .375 H&H Mag. + 285gr Speer Grand Slam
The most recommended powders for this combination are ReloadSwiss RS 60.
Based on C.I.P., the max. allowed case length is 2.850 in / 72.39 mm, the max. cartridge length is 3.600 in / 91.44 mm, and the max. allowed pressure is 62,366 PSI / 4,300 bar.
Based on C.I.P., the max. allowed case length is 2.850 in / 72.39 mm, the max. cartridge length is 3.600 in / 91.44 mm, and the max. allowed pressure is 62,366 PSI / 4,300 bar.
Load Specifications
ImperialMetric
Bullet:.375 | 285gr | Grand Slam
Cartridge:.375 H&H Mag. load data
Case Length (L3):2.859" | 72.6 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.514" | 13.1 mm
Case Capacity:95.3 gow | 6.18 cm³
Primer Size:Large Rifle Magnum (LRM)
Max. Pressure (C.I.P.):62,366 psi | 4,300 bar
Barrel Length:24.0" | 610 mm
Min. Twist Rate:1:6.0
Get PRO license to unlock all data and calculators
Community Loads for .375 H&H Mag. + 285gr Speer Grand Slam
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) |
|---|---|---|---|---|---|
| 69.0 gr | 3.560" | — | 2414 fps | ••• | |
| 73.0 gr | 3.560" | — | 2537 fps | ••• | |
| 77.0 gr | 3.560" | — | 2637 fps | ••• | |
| ••• | 3.560" | — | 2361 fps | ••• | |
| ••• | 3.560" | — | 2516 fps | ••• | |
| ••• | 3.560" | — | 2446 fps | ••• | |
| ••• | 3.560" | — | 2571 fps | ••• | |
| ••• | 3.560" | — | 2593 fps | ••• | |
| ••• | 3.560" | — | 2720 fps | ••• | |
| ••• | 3.560" | — | 2530 fps | ••• | |
| ••• | 3.560" | — | 2597 fps | ••• | |
| ••• | 3.560" | — | 2606 fps | ••• | |
| ••• | 3.560" | — | 2569 fps | ••• | |
| ••• | 3.560" | — | 2446 fps | ••• | |
| ••• | 3.560" | — | 2567 fps | ••• | |
| ••• | 3.560" | — | 2425 fps | ••• | |
| ••• | 3.560" | — | 2549 fps | ••• | |
| ••• | 3.560" | — | 2521 fps | ••• | |
| ••• | 3.560" | — | 2646 fps | ••• | |
| ••• | 3.560" | — | 2607 fps | ••• | |
| ••• | 3.560" | — | 2656 fps | ••• | |
| ••• | 3.560" | — | 2315 fps | ••• | |
| ••• | 3.560" | — | 2443 fps | ••• | |
| ••• | 3.600" | 24.0" | 2526 fps | ••• | |
| ••• | 3.583" | 24.6" | 2720 fps | ••• | |
| ••• | 3.583" | 24.6" | 2736 fps | ••• | |
| ••• | 3.583" | 24.6" | 2749 fps | ••• | |
| ••• | 3.583" | 24.6" | 2769 fps | ••• | |
| ••• | 3.583" | 24.5" | 2288 fps | ••• | |
| ••• | 3.583" | 24.5" | 2508 fps | ••• | |
| ••• | 3.583" | 24.5" | 2313 fps | ••• | |
| ••• | 3.583" | 24.5" | 2530 fps | ••• | |
| ••• | 3.560" | — | 2652 fps | ••• | |
| ••• | 3.583" | 24.5" | 2363 fps | ••• | |
| ••• | 3.583" | 24.5" | 2528 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.