Load data for .300 Win. Mag. + 220gr Nosler Custom Competition
The most recommended powders for this combination are Hodgdon H1000.
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:0.810" | 20.6 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:1:11.5
Get PRO license to unlock all data and calculators
Community Loads for .300 Win. Mag. + 220gr Nosler Custom Competition
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) |
|---|---|---|---|---|---|
| 57.5 gr | 3.340" | 24.0" | 2491 fps | ••• | |
| 59.5 gr | 3.340" | 24.0" | 2561 fps | ••• | |
| 61.5 gr | 3.340" | 24.0" | 2630 fps | ••• | |
| ••• | 3.340" | 24.0" | 2562 fps | ••• | |
| ••• | 3.340" | 24.0" | 2566 fps | ••• | |
| ••• | 3.340" | 24.0" | 2640 fps | ••• | |
| ••• | 3.340" | 24.0" | 2713 fps | ••• | |
| ••• | 3.340" | 24.0" | 2743 fps | ••• | |
| ••• | 3.340" | 24.0" | 2663 fps | ••• | |
| ••• | 3.340" | 24.0" | 2621 fps | ••• | |
| ••• | 3.340" | 24.0" | 2465 fps | ••• | |
| ••• | 3.340" | 24.0" | 2637 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.