Cal. 12.7 x 108 mm Ball

Projectile Ball
Material: ombac CuZn10,
Core 1 steel, Core2 — Lead antimony
Weight:    ~48 g / 740 gr
Length: 64.6 mm
Propelling charge: NCD powder

Packing 

104 rounds in metal box M2A1

2 metal boxes (208 rounds) in wire bound wooden box

Cartridge

Weight with bullet:~133.1 g