Dave Saxton wrote:The US 2700pdr was a battleship killer, and it proved it 2 times.
The Hood was a stronger opponant than Kirishima. The German 15" shell was a proven capital ship killer as well.....and even if the shells did not necessarily ha(ve) bigger vertical perforation than the German 38cm, they delivered far more destruction once inside
The German shell used a far more potent explosive burster charge, and IIRC a larger burster charge as a % of shell weight.
I agree with this, it's burster charge that really determines the internal damage and the Germans used a powerful charge for the shell weight. Reliability of detonation like whether it's high order or not is the key.
By the way the guys who brought us US battleships of WW2 and Axis and neutral battleships of WW2 give the US 16 incg 45 penetration at 20,000 yards as 17.6 inches while the German 38cm is put at 16.5 inches. If it's true then the US weapon is slightly more powerful against vertical armor.