Load data for 7 mm Rem. Ultra Mag. + 139gr Hornady GMX
342 suitable loads across 57 powder(s) for cartridge 7 mm Rem. Ultra Mag. with 139gr Hornady GMX bullet.
The most recommended powders for this combination are Vihtavuori N570, Hodgdon Retumbo and ReloadSwiss RS 76.
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:.284 | 139gr | GMX
Cartridge:7 mm Rem. Ultra Mag. load data
Case Length (L3):2.850" | 72.4 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.617" | 15.7 mm
Case Capacity:112 gow | 7.26 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:1:10.5
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