The bottom line is that it’s a 183mm nuke, it should hit like one, and it absolutely does not.
You can drop a bomb, with less filler, near a tank and get a kill. Absurd.
“Test firing of the L4 against a Conqueror and a Centurion proved how powerful the round was. In 2 shots, the 183 mm HESH shell blew the turret clean off the Centurion, and split the mantlet of the Conqueror in half. HESH could also serve as a dual-use round just as capable of engaging enemy armor as for use as a high-explosive round against buildings, enemy defensive positions, or soft-skinned targets.”
It should be the ultimate glass cannon in the game. It has a larger cannon than any other tank, hell it’s larger than close to half the bluewater ships out there. It should mangle whatever it hits. Only an engine deck shot on a heavy tank should have a chance of survival, and even then it should probably just be overpressured.