20-mm A.A. H.E.-T. and B.L. & T. Mk 4 Mods 1 - 28 and Mk 720-mm A/C A.P.-T. M95 (New Series)
U.S. EXPLOSIVE ORDNANCE
PART 1 - PROJECTILES, PROPELLANT,
AND PROECTILE FUZES
Chapter 1 - Projectiles
Section 11 - 20-mm PROJECTILES
20-mm A.P.-T. Mk 9

Over-all length, inches

 

With cap & windshield

3.051

Without cap & windshield

2.499

Diameter of base, inches

0.742

Distance base to band, inches

0.315

Width of band, inch

0.154

Diameter at bourrelet, inch

0.784

Weight of loaded projectile, pound

0.2686

Cartridge Case

Mks 3 and 4

Primer

Mk 31

Tracer

Integral

Figure 75 (Part 2). 20-mm Projectiles.

20-mm A.A. H.E.-T. and B.L. & T. Mk 4 Mods 1 - 28 and Mk 720-mm A/C A.P.-T. M95 (New Series)