Lapua ammunition is world renowned for accuracy and performance, making use of high quality components and adhering to the strictest of tolerances. The Lock Base bullet base is protected against the hot powder gas by enclosing it inside the jacket. This construction allows higher chamber pressure and muzzle velocity than traditional full metal jacket bullet construction. Lock Base bullets are at their best at long and extra long range shooting because of the high muzzle velocity, superior accuracy and flat trajectory they can offerThis ammunition is new production, non-corrosive, in boxer primed, reloadable brass cases.