For the most precise long-range shooting, use the bubble level to ensure that the rifle is perfectly vertical. This will eliminate potential error caused by shooting a canted rifle.
_x000D_Mounts quickly and easily to the riflescope tube.
_x000D_Specifications
_x000D_Weight: 1.6oz
_x000D_Outside Diameter (inch): 2.2-204
_x000D_Outside Diameter (mm): 55-61
