How thick is modern MBT armor (DR 2000)?

[Fred Brackin]

Originally Posted by The_Ryujin

Sloping also effects armors DR, increasing it's effective thickness by (armors thickness/COS(angle of slope)) as well as increasing the likelihood that a round will just bounce off of it. For simplicity GURPS combines the increased thickness and chance of bouncing a round and assumes that an slope of 30° will increase effective DR by 1.5× and a 60° slope will increase it by 2×

"Bouncing" might happen with relatively low velocit6y WWII stuff but APFSDSDU at over a mile per second doesn't really act like a solid object when it hits something.

......and to the best of my knowledge Gurps does not include 'bouncing" in with DR. In 3e "bouncing" was part of PD but 4e did away with that without increasing DR to compensate for the rather rare effects of vehicular PD