223 Ammo box

thingiverse

223 Ammo Box with Sliding Lid: A Space-Saving Design for Hunters and Shooters. The 223 ammo box boasts an ingenious design that minimizes space usage while keeping shells secure. Its compact shape enables cases to touch each other without compromising their stability, thanks to the clever neck holder that keeps them in place. The fired cartridges fit snugly within, requiring only a 0.2mm clearance adjustment - perhaps a tweak or two will perfect this.