Cooper Model 57M in .17 HMR—the rimfire benchrest-quality action applied to the hottest small varmint cartridge. Hand-lapped barrel, crisp trigger. Type: Rifle Action: Bolt-Action Caliber: .17 HMR Capacity: 5 Year introduced: 2003, USA Weight: 44 oz Overall length: 40.5" Status: Active Intended use: Varminting, Target, Small Game