Retumbo
Retumbo is a very slow extruded rifle powder in the Extreme family for the largest magnum cases. Handloaders reach for it with heavy bullets in the .300 Winchester Magnum and .338 Lapua Magnum class.
Pick a container size below.
Retumbo is a very slow extruded rifle powder in the Extreme family for the largest magnum cases. Handloaders reach for it with heavy bullets in the .300 Winchester Magnum and .338 Lapua Magnum class.
Pick a container size below.
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