Ammo box for .357 Magnum (55 rounds)

An ammo box with sliding lid for .357 Magnum rounds. 
The sliding lid helps with portioning the ammo, for easier and faster loading. 

When I shoot Magnum competitions, there is a chance of a “factor check”, which means that the judge panel will take 3 shots to check bullet weight and velocity, so I made an extra row in the container. Hence the 55, rather than the ordinary 50