1911-pattern semi-automatic pistol chambered for .357 Magnum. Dan Coonan solved the feeding challenges of rimmed cartridges in a box magazine through careful geometry and a modified extractor. The Coonan delivers .357 Mag power in a 1911 format. Type: Pistol Action: Semi-Automatic Caliber: .357 Magnum Capacity: 7 Year introduced: 1983, USA Weight: 42 oz Overall length: 8.3" Status: Active Intended use: Defense, Collecting, Hunting