Ruger Single-Seven in 327 Federal Mag with 7.5-inch barrel. Maximum velocity and longest factory sight radius. The 327 Federal from 7.5 inches produces 1,400+ fps with 100-grain bullets, making this a surprisingly effective deer revolver. Type: Revolver Action: Single-Action Caliber: 327 Federal Mag Capacity: 7 Year introduced: 2014, USA Weight: 38 oz Overall length: 13" Status: Active Intended use: Hunting