The Tiger Rock Inc. LBS3030 .3030 Cartridge Laser Bore Sighter delivers exceptional accuracy for optimal aiming adjustments. Manufactured from durable aluminum, it guarantees a secure fit in .30-30, .25-06, and .270 chambers. The vibrant red finish improves visibility while the precise red laser projects an effective target range. Fits .30-30, .25-06, .270 Chambers Metallic red finish for enhanced visibility High-quality aluminum casing for durability Visible red laser for precise targeting Laser wavelength: 635-655 nm Laser beam power: < 5mW Sighting range: 20-30 yards Dot size: 1.5" @ 100 yards Requires (3) LR41 button cell batteries Improve your shooting accuracy today with this essential bore sighter tool.