The 2 cm KwK 30 used the 20 x 138B cartridge. Average penetration performance established against rolled homogenous steel armor plate laid back at 30° from the vertical.[3]

PzGr.39 (Armour Piercing) (Can go through 23 mm of armor at 100 meters and 14 mm of armor at 500 meters)
PzGr.40 (Armour Piercing Composite Rigid) (Can go through 40 mm of armor at 100 meters and 20 mm of armor at 500 meters)



2cm機関砲(L55)のスペック貼っとくわ
良くスレで言う奴いるが高々2cm”ですら”って軽々しく言うのはこれ見てからにしような