Section 13 - 1.1-inch Projectiles: 1.1-inch A.A. Mk 2 Mods 0 and 13-Pounder Common Mk 4 Mod 1 (Obsolete)
U.S. EXPLOSIVE ORDNANCE
PART 1 - PROJECTILES, PROPELLANT,
AND PROECTILE FUZES
Chapter 1 - Projectiles
Section 14 - "POUNDER" PROJECTILES
1-Pounder Common Mk 2 Mods 0 and 1

Guns used in

1-pdr./40

Over-all length, inches

3.56

Diameter of base, inches

1.441

Distance base to band, inches

0.829

Width of band, inch

0.731

Diameter at bourrelet, inch

1.445

Filling

Black powder

Weight of filling, pound

0.026

Weight of loaded projectile, pound

1.088

Charge/weight ratio

2.07%

Cartridge Case

Mk 2

Primer

Mk 10 Mod 9

Tracer

Integral

Fuzes

Base - Mk 8 Mod 4 (B.I.F.)

This ammunition is used in coast guard guns. Their bursting charge is black powder and TNT, or black powder alone. This should be kept in mind when unscrewing the fuze, as some of the powder may have fallen down into the threads and the friction would cause detonation.

The Primer Mk 10 Mod 8 may be used for saluting charges only.

Base Fuze Mk 2 Mod 9 and Mk 8 Mod 5, without tracers, may be used, but the Mk 8 Mod 4 is the preferred assembly.

This round may be issued B.L. & P. for target-practice.

Figure 78. 3-Pounder Common Mk 4 and 1-Pounder Common Mk 2

Section 13 - 1.1-inch Projectiles: 1.1-inch A.A. Mk 2 Mods 0 and 13-Pounder Common Mk 4 Mod 1 (Obsolete)