[sauropod]

"Last September, American weapons manufacturer United Defense Industries demonstrated a new, cheaper and lighter self-propelled artillery piece to replace the cancelled Crusader system."

155mm? Also, what about ROF and tube heating issues? I know about the IMC gun. Does this new concept have a cooling system for the barrel?

[Cannoneer No. 4]

Non-Line-of-Sight Cannon (NLOS-C)

Maybe it will have a big water jacket like a Vickers machine gun.

United Defense Cannon Demonstrator Fires 6 Rounds Per Minute