Sightmark Chamber Laser Boresight .300 Winchester Magnum Red Laser Brass

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Sightmark's bore sights offer a quick and easy way to sight in your rifle scope. Several in-chamber lasers are available for most popular pistol, rifle and shotgun calibers. Useful for initial sighting of your scope, as well as checking zero after turbulent flights, or as training aids for "quick draw" drills.

Specifications and Features:
Sightmark SM39006
Chamber Laser Bore Sight
.300 Winchester Magnum
Carrying case
Laser Wavelength: 632 - 650 nm
LED Type: Visible red laser
Output Power: 5 mW
Battery Type: AG5 (2)
Battery Type: AG3 (3)
Battery Life: 1 hour
Range for Sighting: 15 - 100 yds
Dot Size: 2 in @100yd
Operation: On/off end cap
Material: Brass
Operating Temp F: 14 to 122

.300 Winchester Magnum