Trajectory compensated scopes for target and varmint shooters. Designed for the .223 bullet, the trajectory is compensated from 100 to 400 yards. They feature a quick change turret system with 3 drums included for 50, 55 and 62 grain bullets. Each scope has Fully multi-coated optics, with adjustable objective for parallax along with a 1" tube with quick change turret system. All BSA Sweet 223's are waterproof, fog-proof and shockproof.