Load data for .300 Rem. Ultra Mag. + 180gr AERO SB,- smax:20.90

443 suitable loads across 73 powder(s) for cartridge .300 Rem. Ultra Mag. with 180gr AERO SB,- smax:20.90 bullet.

The most recommended powders for this combination are Vihtavuori N560, Hodgdon Retumbo and ReloadSwiss RS 76.

.300 Rem. Ultra Mag. cartridge with combo bulletSeated DepthL3 = 2.850 in / 72.39 mmL6 = 3.598 in / 91.39 mmSeated Depth = .724 in / 18.39 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 64,977 PSI / 4,480 bar.

Load Specifications

ImperialMetric
Case Length (L3):2.850" | 72.4 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.778" | 19.8 mm
Case Capacity:112.5 gow | 7.29 cm³
Primer Size:Large Rifle Magnum (LRM)
Max. Pressure (C.I.P.):64,977 psi | 4,480 bar
Barrel Length:24.0" | 610 mm
Min. Twist Rate:1:10.5

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Community Loads for .300 Rem. Ultra Mag. + 180gr AERO SB,- smax:20.90

Real loads for this combination shared by our community. Charge weights are only fully visible with an active Pro licence.

PowderCharge (gr)C.O.L.Barrel LengthVelocity (fps)Pressure (psi)

Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.