The Performance Center Backpacker is the most compact 629 variant, pairing the full-power .44 Magnum with a 2.625-inch barrel for wilderness carry as a bear defense sidearm. Type: Revolver Action: DA/SA Caliber: .44 Mag Capacity: 6 Year introduced: 2000, USA Weight: 36 oz Overall length: 7.5" Status: Active Intended use: Hunting, Wilderness Defense, Collector