Remington's bolt-action single-shot pistol in 7mm BR Remington, originally introduced in .221 Fireball. The XP-100 established the bolt-action pistol concept and inspired decades of long-range handgun hunting. Type: Pistol Action: Bolt-Action Caliber: 7mm BR Rem Capacity: 1 Year introduced: 1963, USA Weight: 60 oz Overall length: 16.75" Status: Discontinued Intended use: Hunting, Long-Range Competition, Collecting