Mossberg's heavy-barrel varmint variant of the 817 in .17 HMR, offering improved accuracy from a stiffer, heavier barrel that resists heat buildup during extended shooting sessions. Type: Rifle Action: Bolt-Action Caliber: .17 HMR Capacity: 5 Year introduced: 2009, USA Weight: 5.25 oz Overall length: 41" Status: Active Intended use: Varmint, Benchrest