Chamber the Sightmark 6.5 Creedmoor, .22-250 Laser Boresight in your rifle like a regular cartridge, and a red laser dot shows exactly where you&';re aiming. Ideal for hunters, competitive shooters and law enforcement, this device significantly reduces wasted cartridges and shells. Simply adjust your sights or scope, and save your extra ammo for the hunt. Includes a carrying case, three (3) AG3 batteries, and instructions. Included in Package Battery pack Carrying case Batteries Used Type: AG5 Quantity: 2 Features Precision Accuracy Reliable And Durable Fastest Gun Zeroing And Sighting System Reduce Wasted Cartridges And Shell Compact And Lightweight Easy To Pack And Travel Comes With A Carrying Case Compatible with both 6.5 Creedmoor and .22-250 barrels