The Aimshot Bore Sight Arbor (brand part no. AR264) is a caliber adapter that centers a .223 laser bore sight module inside a larger magnum chamber, letting one boresighting kit cover far more rifles than the module could handle on its own. This particular arbor is sized for the .264, .300, and .338 Winchester Magnum, .308 and .358 Norma Magnum, .257, .300, and .340 Weatherby Magnum, 7mm Remington Magnum, and 7mm STW chamberings, so a single .223 module bore-sights the whole family of magnum rifles in your safe. It ships one arbor per package and is built specifically as a companion accessory to your existing laser bore sight module rather than a standalone sighting tool.

Key Specifications

• Works in conjunction with a .223 laser bore sight module to adapt it for larger chamberings.
• Sized for .264, .300, and .338 Winchester Magnum chamberings.
• Also fits .308 and .358 Norma Magnum chamberings.
• Also fits .257, .300, and .340 Weatherby Magnum chamberings.
• Also fits 7mm Remington Magnum and 7mm STW chamberings.
• Ships one arbor per package.

Frequently Asked Questions

Does this arbor work on its own? No, it’s designed to work in conjunction with a .223 laser bore sight module.

What calibers does this arbor fit? It covers .264/.300/.338 Win Mag, .308/.358 Norma Mag, .257/.300/.340 Weatherby Mag, 7mm Rem Mag, and 7mm STW.

Buy the Aimshot Bore Sight Arbor, Magnum Calibers

One boresighting module can cover an entire magnum rifle collection with the right arbor, and this Aimshot adapter makes that possible. Order it from our Lubbock, Texas gun shop for fast, direct shipping and round out your scope accessories kit.