Description
This round has been designed as the practice round for training gun crews operating 3 inch seacoast guns.
The Mk VIIA1 Projectile is of cast iron construction with no fuze, booster, or HE filler.
Functioning
No information about functioning.
See Also
Nothing else to see.
Source(s)
TM 9-1904, Ammunition Inspection Guide (1944)
