CCI Ammunition .22 Winchester 45 Grain Jacketed Hollow Point Brass Rimfire Ammo 50 Rounds. The 19th century favorite features 21st century technology including copper bullet composition and a special base that are ideal for old barrels as well as reliable CCI priming.Features:19th century favorite with 21st century technologyOnly 22 WRF jacketed hollow point in the industrySpecial bullet base makes the load ideal for old barrelsNot for revolvers. Most 22 WRF revolvers have undersized bores that cannot use a jacketed bullet. Specifications for CCI Ammunition .22 Winchester 45 Grain Jacketed Hollow Point Brass Rimfire Ammunition: Manufacturer: CCI Ammunition Caliber: .22 Winchester Rimfire Number of Rounds: 50 Bullet Type: Jacketed Hollow Point (JHP) Bullet Weight: 45 grain Cartridge Case Material: Brass Muzzle Velocity: 1300 ft/s Application: Varmint Predator Package Type: Case Primer Style: Rimfire Package Contents: CCI Ammunition .22 Winchester 45 Grain Jacketed Hollow Point Brass Rimfire Ammunition What is CCI Ammunition .22 Winchester 45 Grain Jacketed Hollow Point Brass Rimfire Ammunition good for? The manufacturer thinks that it is suitable for predator varmint.CCI Ammunition 69: .22 Winchester 45 Grain Jacketed Hollow Point Brass Rimfire Ammo 50 Rounds