Load data for .300 Win. Mag. + 220gr Sierra Pro-Hunter
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
Bullet:.308 | 220gr | Pro-Hunter
Cartridge:.300 Win. Mag. load data
Case Length (L3):2.620" | 66.5 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.572" | 14.5 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:1:14.0
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Community Loads for .300 Win. Mag. + 220gr Sierra Pro-Hunter
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) |
|---|---|---|---|---|---|
| 60.3 gr | 3.340" | 24.0" | 2578 fps | ••• | |
| 63.2 gr | 3.340" | 24.0" | 2673 fps | ••• | |
| 61.4 gr | 3.340" | 24.0" | 2376 fps | ••• | |
| ••• | 3.340" | 24.0" | 2478 fps | ••• | |
| ••• | 3.340" | 24.0" | 2470 fps | ••• | |
| ••• | 3.340" | 24.0" | 2555 fps | ••• | |
| ••• | 3.340" | 24.0" | 2639 fps | ••• | |
| ••• | 3.340" | 24.0" | 2439 fps | ••• | |
| ••• | 3.340" | 24.0" | 2526 fps | ••• | |
| ••• | 3.340" | 24.0" | 2460 fps | ••• | |
| ••• | 3.340" | 24.0" | 2565 fps | ••• | |
| ••• | 3.340" | 24.0" | 2625 fps | ••• | |
| ••• | 3.340" | 24.0" | 2670 fps | ••• | |
| ••• | 3.340" | 24.0" | 2474 fps | ••• | |
| ••• | 3.340" | 24.0" | 2646 fps | ••• | |
| ••• | 3.340" | 24.0" | 2359 fps | ••• | |
| ••• | 3.340" | 24.0" | 2467 fps | ••• | |
| ••• | 3.340" | 24.0" | 2570 fps | ••• | |
| ••• | 3.340" | 24.0" | 2461 fps | ••• | |
| ••• | 3.340" | 24.0" | 2641 fps | ••• | |
| ••• | 3.340" | 24.0" | 2631 fps | ••• | |
| ••• | 3.340" | 24.0" | 2743 fps | ••• | |
| ••• | 3.340" | 24.0" | 2790 fps | ••• | |
| ••• | 3.340" | 24.0" | 2499 fps | ••• | |
| ••• | 3.340" | 24.0" | 2620 fps | ••• | |
| ••• | 3.340" | 24.0" | 2364 fps | ••• | |
| ••• | 3.340" | 24.0" | 2456 fps | ••• | |
| ••• | 3.340" | 24.0" | 2548 fps | ••• | |
| ••• | 3.340" | 24.0" | 2550 fps | ••• | |
| ••• | 3.340" | 24.0" | 2403 fps | ••• | |
| ••• | 3.340" | 24.0" | 2490 fps | ••• | |
| ••• | 3.340" | 24.0" | 2575 fps | ••• | |
| ••• | 3.340" | 24.0" | 2660 fps | ••• | |
| ••• | 3.340" | 24.0" | 2358 fps | ••• | |
| ••• | 3.340" | 24.0" | 2432 fps | ••• | |
| ••• | 3.340" | 24.0" | 2414 fps | ••• | |
| ••• | 3.340" | 24.0" | 2512 fps | ••• | |
| ••• | 3.340" | 24.0" | 2600 fps | ••• | |
| ••• | 3.340" | 24.0" | 2506 fps | ••• | |
| ••• | 3.340" | 24.0" | 2514 fps | ••• | |
| ••• | 3.340" | 24.0" | 2590 fps | ••• | |
| ••• | 3.340" | 24.0" | 2515 fps | ••• | |
| ••• | 3.340" | 24.0" | 2619 fps | ••• | |
| ••• | 3.340" | 24.0" | 2394 fps | ••• | |
| ••• | 3.340" | 24.0" | 2472 fps | ••• | |
| ••• | 3.340" | 24.0" | 2553 fps | ••• | |
| ••• | 3.340" | 24.0" | 2637 fps | ••• | |
| ••• | 3.340" | 24.0" | 2654 fps | ••• | |
| ••• | 3.340" | 24.0" | 2497 fps | ••• | |
| ••• | 3.340" | 24.0" | 2627 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.