Since 1922, Super-X ammunition has provided exceptional quality and outstanding performance for all types of hunters and shooters who rely on its time-proven dependability backed by legendary excellence. This 20 grain Jacketed Hollow Point XTP projectile provides super-fast, explosive expansion with improved wind-bucking characteristics making this a perfect round for varmints such as squirrels and prairie dogs.Specifications: Ammo Bullet Type: Jacketed Hollow Point Ammo Casing Type: Brass Ammo Bullet Weight: 20 grain Ammo Round Count: 50/Box Caliber Multi: .17 Hornady Magnum Rimfire Muzzle Energy: 250 lb/ft Muzzle Velocity: 2375 fps Application: Predator, Varmint, Small Game Type: Rimfire Series/Collection: Super-X