The Vaquero in .357 Magnum with a 5.5-inch barrel is the most common competition configuration for cowboy action shooting, where .357 Magnum chambering allows use of both .357 and the mild .38 Special loads used in competition. Type: Revolver Action: Single-Action Caliber: .357 Magnum Capacity: 6 Year introduced: 1993, USA Weight: 41 oz Overall length: 11" Status: Active Intended use: Cowboy Action, Range, Collecting