Typical APC-T Armor-Piercing, Capped-Tracer Projectile

Fig 1-8 TYPICAL APC-T (ARMOR-PIERCING, CAPPED-TRACER) PROJECTILE 

Typical APC-T (Armor-Piercing, Capped Tracer) Projectile, shown in Fig 1-8, consists of hardened steel monobloc body and cap of forged alloy steel. The AP cap is heat-treated to have a hard exterior and a relatively soft core. The softer core protects the hardened point from breakage by distributing the stress during impact and thus helps the penetration thru armor. Then the BD fuze functions to detonate a HE chge located in the cavity at the rear of the body 

This type of projectile has been used in fixed ammunition only and the following rounds are described in Ref 52 76-mm HVAP-T, M319 for Gun Cannons (p 2-42)  

90-mm HVAP-T, M304 for Gun Cannons (p 2-64) and 90-mm HVAP-T, M332 Series for Gun Cannons (p 2-65) 

APDS-T (Armor-Piercing Discarding Sabot) ProjectileAn outside view of the 105-mm APDS-T, M392A2 Projectile is shown here in Fig 41, together with a brief description of the complete round (Ref 52, pp 2-33, 2-69 2-70) (Compare with 76-mm HVAP-DS-T Fixed Ammunition M331, shown in Fig 37b with a brief description) 

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