Winchester's semi-automatic .22 LR with a tubular magazine under the barrel. Produced from 1963 to 1977, the 290 was Winchester's primary entry-level semi-auto rimfire during that period. Type: Rifle Action: Semi-Automatic Caliber: .22 LR Capacity: 17 Year introduced: 1963, USA Weight: 5 oz Overall length: 39" Status: Discontinued Intended use: Plinking, Collecting