Load data for .300 Rem. Ultra Mag. + 180gr Speer Grand Slam
357 suitable loads across 61 powder(s) for cartridge .300 Rem. Ultra Mag. with 180gr Speer Grand Slam bullet.
The most recommended powders for this combination are Hodgdon Retumbo, ReloadSwiss RS 80 and Vihtavuori N570.
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Load Specifications
ImperialMetric
Bullet:.308 | 180gr | Grand Slam
Cartridge:.300 Rem. Ultra Mag. load data
Case Length (l3):2.850" | 72.4 mm
Cartridge Length (C.O.L.):•••
Seated Depth:0.466" | 11.8 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:1:15.0
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