Cal 7.62 x 51 mm linked 4:1

Projectile AP
Material:  Tombac (CuZn10),
Core – Steel, Core2 — Lead antimony
Weight:  9.759 / 150 gr
Length:  32.2 mm
Propelling charge: NCD powder

Projectile Tracer
Material: Tombac, Core — Lead
antimony, Tracer — Tracer compos.
Weight:  ~9.46 g/ 146 gr
Length: 34.29 mm
Propelling charge: NCD powder (2.80 g)

Packing 

250 rounds in metal link belt M13

2 metal link belts in metal box M2A1

2 metal boxes M2A1 (1000 rounds) in wire bound wooden box