40-mm Mk 3Section 13 - 1.1-inch Projectiles: 1.1-inch A.A. (a) Mk 1 Mods 0 - 28, (b) Mk S.D. 1
U.S. EXPLOSIVE ORDNANCE
PART 1 - PROJECTILES, PROPELLANT,
AND PROECTILE FUZES
Chapter 1 - Projectiles
Section 12 - 40-mm PROJECTILES
40-mm A.A. M81A1 A.P. and A.P.-T.

Over-all length, inches

6.19

Diameter of base, inches

1.55

Distance base to band, inches

0.903

Width of band, inch

0.64

Diameter at bourrelet, inch

1.55

Weight of loaded projectile, pound

1.96

Cartridge Case

Mk 1, Mk 2, Mk 3

Primer

Mk 21, Mk 22

Tracer

Integral

Fuzes

None

This projectile is an Army design manufactured for the Navy to Navyl specification.

The A.P. round has a plug in the tracer cavity; the A.P.-T. has a red tracer.

Figure 76. 40-mm Projectiles.

40-mm Mk 3Section 13 - 1.1-inch Projectiles: 1.1-inch A.A. (a) Mk 1 Mods 0 - 28, (b) Mk S.D. 1