content_output-053_2 (Q6257)

the diameter of the bore of the cannon, and the usual method of construction was of iron strips and rings welded together as already described. These cannon were for the most part used in the defence of fortified towns or for besieging strongholds; it was not unusual for them to be made where they were to be used and, having served their purpose, they were broken up or retained for further use, since their removal was almost impossible.