Load data for .300 Win. Mag. + 240gr Sierra HPBT LR MatchKing
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
ImperialMetric
Cartridge:.300 Win. Mag. load data
Case Length (L3):2.620" | 66.5 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.871" | 22.1 mm
Case Capacity:90.5 gow | 5.86 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:1:11.0
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Community Loads for .300 Win. Mag. + 240gr Sierra HPBT LR MatchKing
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) |
|---|---|---|---|---|---|
| 54.2 gr | 3.340" | 24.0" | 2373 fps | ••• | |
| 57.0 gr | 3.340" | 24.0" | 2467 fps | ••• | |
| 60.0 gr | 3.340" | 24.0" | 2565 fps | ••• | |
| ••• | 3.340" | 24.0" | 2385 fps | ••• | |
| ••• | 3.340" | 24.0" | 2498 fps | ••• | |
| ••• | 3.340" | 24.0" | 2548 fps | ••• | |
| ••• | 3.340" | 24.0" | 2304 fps | ••• | |
| ••• | 3.340" | 24.0" | 2390 fps | ••• | |
| ••• | 3.340" | 24.0" | 2476 fps | ••• | |
| ••• | 3.340" | 24.0" | 2516 fps | ••• | |
| ••• | 3.340" | 24.0" | 2403 fps | ••• | |
| ••• | 3.340" | 24.0" | 2491 fps | ••• | |
| ••• | 3.340" | 24.0" | 2535 fps | ••• | |
| ••• | 3.340" | 24.0" | 2351 fps | ••• | |
| ••• | 3.340" | 24.0" | 2439 fps | ••• | |
| ••• | 3.340" | 24.0" | 2482 fps | ••• | |
| ••• | 3.340" | 24.0" | 2297 fps | ••• | |
| ••• | 3.340" | 24.0" | 2393 fps | ••• | |
| ••• | 3.340" | 24.0" | 2441 fps | ••• | |
| ••• | 3.340" | 24.0" | 2473 fps | ••• | |
| ••• | 3.340" | 24.0" | 2563 fps | ••• | |
| ••• | 3.340" | 24.0" | 2378 fps | ••• | |
| ••• | 3.340" | 24.0" | 2484 fps | ••• | |
| ••• | 3.340" | 24.0" | 2538 fps | ••• | |
| ••• | 3.340" | 24.0" | 2288 fps | ••• | |
| ••• | 3.340" | 24.0" | 2364 fps | ••• | |
| ••• | 3.340" | 24.0" | 2441 fps | ••• | |
| ••• | 3.340" | 24.0" | 2482 fps | ••• | |
| ••• | 3.340" | 24.0" | 2468 fps | ••• | |
| ••• | 3.340" | 24.0" | 2559 fps | ••• | |
| ••• | 3.340" | 24.0" | 2608 fps | ••• | |
| ••• | 3.340" | 24.0" | 2216 fps | ••• | |
| ••• | 3.340" | 24.0" | 2299 fps | ••• | |
| ••• | 3.340" | 24.0" | 2385 fps | ••• | |
| ••• | 3.340" | 24.0" | 2470 fps | ••• | |
| ••• | 3.340" | 24.0" | 2511 fps | ••• | |
| ••• | 3.340" | 24.0" | 2322 fps | ••• | |
| ••• | 3.340" | 24.0" | 2403 fps | ••• | |
| ••• | 3.340" | 24.0" | 2492 fps | ••• | |
| ••• | 3.340" | 24.0" | 2536 fps | ••• | |
| ••• | 3.340" | 24.0" | 2256 fps | ••• | |
| ••• | 3.340" | 24.0" | 2344 fps | ••• | |
| ••• | 3.340" | 24.0" | 2433 fps | ••• | |
| ••• | 3.340" | 24.0" | 2478 fps | ••• | |
| ••• | 3.340" | 24.0" | 2384 fps | ••• | |
| ••• | 3.340" | 24.0" | 2476 fps | ••• | |
| ••• | 3.340" | 24.0" | 2521 fps | ••• | |
| ••• | 3.339" | 25.6" | 2307 fps | ••• | |
| ••• | 3.340" | 24.0" | 2379 fps | ••• | |
| ••• | 3.340" | 24.0" | 2472 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.