Hornady - LNL OAL Gauges Diopter the X2 works with dry

the X2 works with dry fire on your actual firearm

designed for the Competition and Benchrest series of riflescopes

cushion primer withstands repeated cycling

Anatomically cut to be perfect in position

they fold away for easy storage

Hornady - LNL OAL Gauges Diopter the X2 works with dry(Curved) For all autoloader, lever action, or pump action rifles. Also fits all bolt action and single shot firearms. Inserts into chamber through ejection port. Not compatible with Adapter "D" or short bodied cases. (Straight) Regulating seating depth and the resulting "jump" to the rifling is widely regarded as fundamental to improved accuracy. A few thousandths of an inch change between the bullet and the rifling can make the difference between