Description
This projectile is designated for use in M1920 Guns only.
The metal parts assembly consists of a forged steel body, a heavy forged steel base plug which screws into the rear of the filler cavity, a copper rotating band, and a copper base cover. The filler cavity extends from the base to within about 11 inches of the blunted nose of the body. The radius of ogive of 127.26 inches, and short cylindrical taper of 6 degrees at the base, streamline the projectile in flight. A recess, 4.65 inches wide and ribbed at the bottom, is machined into the body 2.25 inches above the base to receive the rotating band. The base plug seats the Mk V Fuze and has a circular groove cut into its circumference to receive a copper base cover. The base cover is assembled after the base plug is screwed into the base of the shell. When the fuze is not shipped assembled to the projectile, a die cast shipping plug screws into its place.
The filler is approximately 167 pounds of explosive D. Even though the projectile is for demolition of targets other than armor plate, for best effect it must, on some occasions, do some penetrating before exploding. This fact accounts for the comparatively insensitive explosive D being used in place of TNT
Functioning
No information about functioning.
See Also
Source(s)
TM 9-1904, Ammunition Inspection Guide (1944)
