Load data for .375 Ruger + 300gr Sierra GameKing
Based on C.I.P., the max. allowed case length is 2.580 in / 65.53 mm, the max. cartridge length is 3.340 in / 84.84 mm, and the max. allowed pressure is 62,076 PSI / 4,280 bar.
Based on C.I.P., the max. allowed case length is 2.580 in / 65.53 mm, the max. cartridge length is 3.340 in / 84.84 mm, and the max. allowed pressure is 62,076 PSI / 4,280 bar.
Load Specifications
ImperialMetric
Bullet:.375 | 300gr | GameKing
Cartridge:.375 Ruger load data
Case Length (L3):2.572" | 65.3 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.660" | 16.8 mm
Case Capacity:99 gow | 6.42 cm³
Primer Size:Large Rifle Magnum (LRM)
Max. Pressure (C.I.P.):62,076 psi | 4,280 bar
Barrel Length:23.0" | 584 mm
Min. Twist Rate:1:6.0
Get PRO license to unlock all data and calculators
Community Loads for .375 Ruger + 300gr Sierra GameKing
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) |
|---|---|---|---|---|---|
| 63.9 gr | 3.340" | 24.0" | 2327 fps | ••• | |
| 65.4 gr | 3.340" | 24.0" | 2368 fps | ••• | |
| 66.9 gr | 3.340" | 24.0" | 2406 fps | ••• | |
| ••• | 3.340" | 24.0" | 2448 fps | ••• | |
| ••• | 3.340" | 24.0" | 2394 fps | ••• | |
| ••• | 3.340" | 24.0" | 2432 fps | ••• | |
| ••• | 3.340" | 24.0" | 2471 fps | ••• | |
| ••• | 3.340" | 24.0" | 2508 fps | ••• | |
| ••• | 3.340" | 24.0" | 2440 fps | ••• | |
| ••• | 3.340" | 24.0" | 2487 fps | ••• | |
| ••• | 3.340" | 24.0" | 2534 fps | ••• | |
| ••• | 3.340" | 24.0" | 2369 fps | ••• | |
| ••• | 3.340" | 24.0" | 2407 fps | ••• | |
| ••• | 3.340" | 24.0" | 2449 fps | ••• | |
| ••• | 3.340" | 24.0" | 2490 fps | ••• | |
| ••• | 3.340" | 24.0" | 2429 fps | ••• | |
| ••• | 3.340" | 24.0" | 2469 fps | ••• | |
| ••• | 3.340" | 24.0" | 2515 fps | ••• | |
| ••• | 3.340" | 24.0" | 2375 fps | ••• | |
| ••• | 3.340" | 24.0" | 2423 fps | ••• | |
| ••• | 3.340" | 24.0" | 2413 fps | ••• | |
| ••• | 3.340" | 24.0" | 2455 fps | ••• | |
| ••• | 3.340" | 24.0" | 2496 fps | ••• | |
| ••• | 3.340" | 24.0" | 2540 fps | ••• | |
| ••• | 3.340" | 24.0" | 2446 fps | ••• | |
| ••• | 3.340" | 24.0" | 2500 fps | ••• | |
| ••• | 3.340" | 24.0" | 2553 fps | ••• | |
| ••• | 3.340" | 24.0" | 2364 fps | ••• | |
| ••• | 3.340" | 24.0" | 2402 fps | ••• | |
| ••• | 3.340" | 24.0" | 2445 fps | ••• | |
| ••• | 3.340" | 24.0" | 2374 fps | ••• | |
| ••• | 3.340" | 24.0" | 2419 fps | ••• | |
| ••• | 3.340" | 24.0" | 2460 fps | ••• | |
| ••• | 3.340" | 24.0" | 2505 fps | ••• | |
| ••• | 3.340" | 24.0" | 2322 fps | ••• | |
| ••• | 3.340" | 24.0" | 2384 fps | ••• | |
| ••• | 3.340" | 24.0" | 2438 fps | ••• | |
| ••• | 3.340" | 24.0" | 2482 fps | ••• | |
| ••• | 3.340" | 24.0" | 2287 fps | ••• | |
| ••• | 3.340" | 24.0" | 2338 fps | ••• | |
| ••• | 3.340" | 24.0" | 2397 fps | ••• | |
| ••• | 3.340" | 24.0" | 2456 fps | ••• | |
| ••• | 3.340" | 24.0" | 2466 fps | ••• | |
| ••• | 3.340" | 24.0" | 2400 fps | ••• | |
| ••• | 3.340" | 24.0" | 2445 fps | ••• | |
| ••• | 3.340" | 24.0" | 2492 fps | ••• | |
| ••• | 3.340" | 24.0" | 2335 fps | ••• | |
| ••• | 3.340" | 24.0" | 2399 fps | ••• | |
| ••• | 3.340" | 24.0" | 2461 fps | ••• | |
| ••• | 3.340" | 24.0" | 2525 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.