Sharpe, can you show your source where you said "Also berdands at times only carried the ammo they thought they would need thus cutting weight (40 rounds weighs a lot when combined with all other gear) making them faster and more mobile." I have never heard of that before. Also, how could the angle of the model of the berdans you put up to see affect the size of the cartriage box? Through out the war cartridge boxes changed in style a tiny bit. Although, not by much. Size pretty much stayed the same.