Load data for .375 Rem. Ultra Mag. + 260gr Nosler Partition
The most recommended powders for this combination are Hodgdon H4831 SC.
Based on C.I.P., the max. allowed case length is 2.850 in / 72.39 mm, the max. cartridge length is 3.600 in / 91.44 mm, and the max. allowed pressure is 63,817 PSI / 4,400 bar.

Based on C.I.P., the max. allowed case length is 2.850 in / 72.39 mm, the max. cartridge length is 3.600 in / 91.44 mm, and the max. allowed pressure is 63,817 PSI / 4,400 bar.

Load Specifications
ImperialMetric
Bullet:.375 | 260gr | Partition
Cartridge:.375 Rem. Ultra Mag. load data
Case Length (L3):2.850" | 72.4 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.548" | 13.9 mm
Case Capacity:117 gow | 7.58 cm³
Primer Size:Large Rifle Magnum (LRM)
Max. Pressure (C.I.P.):63,817 psi | 4,400 bar
Barrel Length:24.0" | 610 mm
Min. Twist Rate:1:6.0
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Community Loads for .375 Rem. Ultra Mag. + 260gr Nosler Partition
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) |
|---|---|---|---|---|---|
| 103.0 gr | 3.495" | 26.0" | 2753 fps | ••• | |
| 105.0 gr | 3.495" | 26.0" | 2812 fps | ••• | |
| 91.5 gr | 3.570" | 24.0" | 2757 fps | ••• | |
| ••• | 3.570" | 24.0" | 2716 fps | ••• | |
| ••• | 3.570" | 24.0" | 2834 fps | ••• | |
| ••• | 3.570" | 24.0" | 2631 fps | ••• | |
| ••• | 3.570" | 24.0" | 2799 fps | ••• | |
| ••• | 3.495" | 26.0" | 2768 fps | ••• | |
| ••• | 3.495" | 26.0" | 2825 fps | ••• | |
| ••• | 3.495" | 26.0" | 2881 fps | ••• | |
| ••• | 3.495" | 26.0" | 2804 fps | ••• | |
| ••• | 3.495" | 26.0" | 2855 fps | ••• | |
| ••• | 3.570" | 24.0" | 2757 fps | ••• | |
| ••• | 3.495" | 26.0" | 2796 fps | ••• | |
| ••• | 3.495" | 26.0" | 2856 fps | ••• | |
| ••• | 3.495" | 26.0" | 2916 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.