What is eye relief on a scope?

Eye relief on a scope is the distance between the eyepiece lens and the eye at which the shooter can see a full field of view. It is an important factor to consider when choosing a scope, especially for those who wear glasses or have some form of eye protection.

A longer eye relief is important for high-recoil firearms to prevent injuries from the scope hitting the shooter's eye. Generally, a longer eye relief of around 3-4 inches is recommended for rifles with heavy recoil.

On the other hand, a shorter eye relief can offer a wider field of view and faster target acquisition. This may be more suitable for shooting at closer ranges or when shooting with a handgun.

Different scopes will have different eye relief measurements, so it is important to choose one that suits your shooting style and preferences. It is advisable to try out different scopes to find the one with the most comfortable eye relief for you.