New Ultralight Arms Model 20 in 220 Swift. Forbes offers the 220 Swift in the Model 20 for customers who want maximum varmint velocity in the ultralight platform. The 220 Swift generates significant barrel heat in extended shooting sessions, but the Model 20's light weight makes it easy to carry to and from prairie dog towns. Forbes' tight-chamber Swift is one of the more unusual NULA chamberings. Type: Rifle Action: Bolt-Action Caliber: 220 Swift Capacity: 1 Year introduced: 1990, USA Weight: 53 oz Overall length: 42" Status: Active Intended use: varmint hunting