Cal. 12.7 x 99 mm Linked 4:1

Projectile AP M2
Material: Jacket – Tombac CuZn10,
Core — Steel, Foil – Lead
Weight:    ~42.5 9 / 656 gr
Length: 58.67 mm
Propelling charge:NCD powder

Projectile Tracer M17
Material: Jacket — Tombac, Core – Steel
Tracer – Tracer compos, Foil – Tombac
Weight:    ~40.05 g / 618 gr
Length: 58.67 mm
Propelling charge:NCD powder

Packing

100 rounds in metal link belt M9

1 metal link belt in metal box M2A1

2 metal boxes (200 rounds) in wooden crate