[GUMALANGI]

Originally Posted by Von Poop

I find this quite surprising, boats not being my thing, 18 inch AA rounds...

'Sanshiki' or 'sanshikidan' shells apparently.

Imperial Battleships


Image here:
Yamato Museum: Large-scale material exhibition room (8)

Yes sir,.. i believe the mistery solved,.

1235: The YAMATO stops zigzagging and increases speed to 24 knots. Her nine 18.1-inch guns firing "Sanshikidan" beehive shells, twenty-four 127-mm. AA guns and one hundred fifty-two 25-mm AA guns all open fire. The American planes release their bombs and torpedoes and strafe the bridge with machine-gun fire.

there were succesful records on using the same shells using main guns again plane by IJN Ship Goryo

Thank you