Description Firefield&&';;s 22-250 Remington In-Chamber Red Laser Brass Boresights are the product you need to get your firearm on-paper fast, with pinpoint accuracy and reliable durability. These boresights should be loaded like a typical round into your firearm&&';;s chamber, where it will then emit a red laser to show exactly where your barrel is aiming. After adjusting your windage and elevation, this boresight will have your firearm sighted-in and ready for zeroing without wasting unnecessary time, money or ammunition. Made of durable brass and operated by an on/off end cap, these boresights can operate in temperatures from 15F to 120F. Like all of Firefield&&';;s quality products, these boresights are protected by a 3-year warranty. When the times comes to prepare your 22-250 Remington-chambered firearm for shooting, these boresights will guarantee you remain Forged in Victory. Included in Package Batteries Battery Used Type: 2x AG5 or 3x AG3 Quantity: 1 Product Downloads Product Manual Features 100-yard sighting-in range Precision Accuracy Durable Brass Construction Compact and Lightweight Easy to pack and transport Takes 2x AG5 or 3x AG3 batteries 1-hour battery life EXPORT CONTROL NOTICE: This product is controlled for export and in-country transfer under the Export Administration Regulations (EAR). Diversion contrary to U.S. law prohibited. Specifications Laser Wavelength 632-650 Output power, mW