Chamber the Sightmark Laser Boresight in your 7mmx65 R rifle just like a regular cartridge and a red laser dot will precisely show where you're aiming. Perfect for hunters, competitive shooters and law enforcement professionals, this Boresight helps minimize wasted ammunition by allowing you to quickly and accurately adjust your sights or scope. Save your extra ammo for the hunt by fine-tuning your aim with ease. The package includes a carrying case, three AG3 batteries and instructions, making it a convenient and effective tool for zeroing in your rifle.