1.   It will be some time before the factions upgrade to rockets, missiles and heavy artillery.

2.   Roxburgh Castle was proof against all but prolonged siege and heavy artillery.

3.   The noise of the explosion resembled the shock of a heavy artillery salute....

4.   Parts of Seoul were coming within range of North Korean heavy artillery.

5.   The hospital had been hit with heavy artillery fire.

6.   ...government militia backed by tanks and heavy artillery.

7.   Using tanks and heavy artillery, they seized the town.

8.   The city has been flattened by heavy artillery bombardments.