Type 4/5 Heavy: New Gun being Supertested

The gun is tested on both tanks.
2 types of ammo known so far:
15 cm/45 41st Year Type (Tier 10)
Common Type 4 HE
Penetration: 30-50 mm
Alpha Damage: 975-1625
Splash Radius: 3.66
Common Type 0 HE
Penetration: 30-50 mm
Alpha Damage: 750-1250
Splash Radius: 3.66