ISU Standard position target rifle on the Match 54 action with a 32.5-inch heavy target barrel. Adjustable stock, palm rest, and hook buttplate. One of the most decorated Olympic rimfire rifles. Type: Rifle Action: Bolt-Action Caliber: .22 LR Capacity: 1 Year introduced: 1965, Germany Weight: 10.5 oz Overall length: 44.5" Status: Active Intended use: Olympic, ISU Standard, Prone