This arbor is used in conjunction with Aimshot .223 Laser Bore Sight

This arbor is used for all of the following calibers:
- 264 Win, 300 Win, 7mm Mag, 300 Weatherby, 270 Weatherby, 7mm Weatherby, 340 Weatherby, 257 Weatherby, .358 Norma Mag, .308 Norma