Gun used in

Over-all length of round

Weight of complete round

Length of bullet

Weight of bullet

Length of cartridge case

Weight of propellant

The bullet consists of copper-nickel jacket; a copper sleeve, forming the nose of the bul-let; a steel core with a lead bend pressed around its base into cannelures; a lead base plug and tracer tube; a transparent closing disc and brass washer; and a split steel sup-porting piece in the nose, which possibly acts as a formig anvil. The nose is filled with three compositions: first, in the tip and intimately pressed into the split anvil, a mixture of aluminum-lead oxid; next, a mixture of magnesium-potassium chlorate antimony sul-phide; and around the nose of the core, magnesium-lead oxid. The tracer burns a bright red.

Figure 85
12.7-mm A.P.I.T. (White Tip)