The Thompson/Center Strike is a bolt-action inline muzzleloader with a patented 209 primer ignition system. The bolt-action design provides a more familiar manual of arms for centerfire rifle hunters transitioning to muzzleloader season. 24-inch stainless steel barrel. Type: Rifle Action: Single-Shot Caliber: 50 Cal Capacity: 1 Year introduced: 2016, USA Weight: 96 oz Overall length: 42" Status: Discontinued Intended use: hunting, whitetail