Vortex rifle scope bubble levels. - Vortex Bubble Levels for Rifle Scopes

If you are a long distance shooter or want to improve your groups, I highly recommend using these levels. It is pertinent that your firearm is held level when shooting longer distances. A small amount of cant equals a large miss at a long distance. You will really notice a difference when shooting from a prone position on uneven around. I have three of the Vortex bubble levels and two made by other manufacturers, I prefer the Vortex and highly recommend them. They are very solid, out of the way and easy to see when you are shooting.