Load data for .300 Rem. Ultra Mag. + 155.5gr Warner Tool Co. Flat Line
468 suitable loads across 74 powder(s) for cartridge .300 Rem. Ultra Mag. with 155.5gr Warner Tool Co. Flat Line bullet.
The most recommended powders for this combination are Winchester StaBALL HD, Vihtavuori N560 and Norma MRP.
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.
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
Bullet:.308 | 155.5gr | . Flat Line
Cartridge:.300 Rem. Ultra Mag. load data
Case Length (L3):2.850" | 72.4 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.746" | 18.9 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:1:10.0
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