The ammunition is used for guns type A54. It s available in two denominations.
API (Armour Piercing Incendiary).
API/T (Armour Piercing Incendiary / Tracer).
It can damage or destroy an aircraft within a rang of 1500 metres and light armourd vehicles or vessels within 500 metre.
TECHNICAL DATA(12.7 X 108 MM API & APIT)
Complete Round
Weight
147 mm
Weight:
API
116 - 126 gm
API/T
112 - 122 gm
Propellant
Single base smokeless powder
Performance
Bulelt velocity
818 - 833 metre/sec
Effective Range:
Air targets
1500 metre
Ground target
500 metre
Chamber pressure:
Mean
3000 kg/sq.cm.
Max
3300 kg/sq.cm.
Penetration:
API
20 mm steel plate placed at 100 metres
(min 90% bullets penetrate through the plate)
API/T
15 mm steel plate placed at 100 metres
(min 90% bullets penetrate through the plate)