Load data for .375 Rem. Ultra Mag. + 270gr Atomic 29 HP

597 suitable loads across 107 powder(s) for cartridge .375 Rem. Ultra Mag. with 270gr Atomic 29 HP bullet.

The most recommended powders for this combination are ReloadSwiss RS 70, Hodgdon Superformance and Alliant Reloder-17.

.375 Rem. Ultra Mag. cartridge with combo bulletSeated DepthL3 = 2.850 in / 72.39 mmL6 = 3.600 in / 91.44 mmSeated Depth = .628 in / 15.95 mm

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
Case Length (L3):2.850" | 72.4 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.682" | 17.3 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:1:17.0

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