New, unprimed brass should always be resized before loading. This brass has undergone factory annealing which extends brass life, as a result of the annealing process the neck portion of the brass may be discolored until the case is cleaned. This is not loaded ammunition.
Lapua brass is now shipped in an instant ammo box: Lapua is now shipping their 100 count boxes of brass in a reusable plastic box that instantly transforms into a 50-round ammo box when emptied. Inside the box on the lid is a grid that contains holes for 50 loaded rounds of ammunition or empty brass. Simply lay the grid across the supports inside the box and it's now converted to an ammo box.