Load data for .300 Win. Mag. + 220gr Berger Long Range Hybrid Target
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:0.752" | 19.1 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:1:10.5
Get PRO license to unlock all data and calculators
Community Loads for .300 Win. Mag. + 220gr Berger Long Range Hybrid Target
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) |
|---|---|---|---|---|---|
| 61.0 gr | 3.340" | 26.0" | 2411 fps | ••• | |
| 61.3 gr | 3.340" | 26.0" | 2421 fps | ••• | |
| 63.0 gr | 3.340" | 26.0" | 2480 fps | ••• | |
| ••• | 3.465" | 24.5" | 2407 fps | ••• | |
| ••• | 3.340" | 26.0" | 2516 fps | ••• | |
| ••• | 3.340" | 26.0" | 2552 fps | ••• | |
| ••• | 3.340" | 26.0" | 2569 fps | ••• | |
| ••• | 3.340" | 26.0" | 2654 fps | ••• | |
| ••• | 3.465" | 24.5" | 2697 fps | ••• | |
| ••• | 3.465" | 24.5" | 2426 fps | ••• | |
| ••• | 3.465" | 24.5" | 2664 fps | ••• | |
| ••• | 3.465" | 24.5" | 2495 fps | ••• | |
| ••• | 3.465" | 24.5" | 2417 fps | ••• | |
| ••• | 3.465" | 24.5" | 2634 fps | ••• | |
| ••• | 3.465" | 24.5" | 2479 fps | ••• | |
| ••• | 3.465" | 24.5" | 2707 fps | ••• | |
| ••• | 3.465" | 24.5" | 2428 fps | ••• | |
| ••• | 3.465" | 24.5" | 2669 fps | ••• | |
| ••• | 3.465" | 24.5" | 2675 fps | ••• | |
| ••• | 3.465" | 24.5" | 2827 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.