Section 7 - 8-inch projectiles: 8-inch H.C. Mk 25 Mod 112-inch A.P. Mk 18 Mod 1
U.S. EXPLOSIVE ORDNANCE
PART 1 - PROJECTILES, PROPELLANT,
AND PROECTILE FUZES
Chapter 1 - Projectiles
Section 8 - 12-INCH PROJECTILES
12-inch A.P. Mk 15 Mod 6

Guns used in

12"/50

Over-all length, inches

42.00

Diameter of base, inches

11.94

Distance base to band, inches

1.0

Width of band, inches

4.0

Diameter at bourrelet, inches

11.977

Filling

Explosive D

Weight of filling, pounds

25.0

Weight of loaded projectile, pounds

870

Charge/weight ratio

2.87%

Primer

Mk 15 Mod 1

Tracer

Mk 5

Fuzes

Base - Mk 21 Mod 0 and 1

This is an old type projectile, without windshield, which is not in common use.

Figure 60. 12-inch A.P. Mk 15 Mod 6

Section 7 - 8-inch projectiles: 8-inch H.C. Mk 25 Mod 112-inch A.P. Mk 18 Mod 1