Cooper Arms Model 21 in 22-250 Remington. The 22-250 pushes a 55-grain bullet past 3,700 fps and is among the flattest-shooting varmint rounds available. Cooper's Model 21 wrings every bit of accuracy potential from the cartridge through a hand-lapped, hand-bedded barreled action fitted into a hand-finished stock. A top-shelf choice for open-country prairie dog shooting. Type: Rifle Action: Bolt-Action Caliber: 22-250 Remington Capacity: 1 Year introduced: 1991, USA Weight: 56 oz Overall length: 41.5" Status: Active Intended use: varmint hunting, target shooting