Freehawk 30-30 Winchester Cartridge Boresights Laser/Boresighters/Bore Sight Laser, Red Dot Laser Bore Sighter for Hunting Shooting Training (Golden) Effectively increases the accuracy for serious hunters,shooters, High quality Brass construction; Weight 43g Visible Red Dot Laser Range :1.5 yards-75 yards Easy to pack and travel,fast install and easy removal Accurate shooting practice without wasting cartridges and shells;Power: under 5mW, Non handheld Class 3R lasers