Ordinance Identification

[CINDERS]

No offence F10 why don't you contact the armaments supplier and get the cold hard facts from them on shell body diameter and driving band diameter verses bore size instead of being a right PITA with interjections and palava that degenerates the thread which should be informative and courteous to all involved.
Why do you think they put driving bands of a softer metal onto the bodies of the projectiles so it can take up any inconsistencies of that body so it can obturate get the engraving done to impart the spin for gyroscpopic stabilty so the shell can go and kill the baddies.

So with that forumers Im done with this thread I have endevoured my best to assist with the O P's ID of the shell but sadly I have fallen short because I tried to hard if you have any queries on life or ordnence I suggest you contact those members whom obviously know more about the whole universe than Stephen Hawkins............................
CINDERS out.....