Hornady - LNL OAL Gauges Aqua Bore Tech’s rifle bore guide

Bore Tech’s rifle bore guide fits most popular centerfire

The Titanium Nitride Bushings have an external diameter of 12

Accurate to one tenth grain

The unit has its own power source

Instruction manual included

Hornady - LNL OAL Gauges Aqua Bore Tech’s rifle bore guide(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