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Originally Posted by Igo kyu
I don't know about that, a book I have mentions AP, APC, APCBC, APCR, APDS, HE and HEAT. My understanding is that an exit hole in armour would be much bigger than the entry hole, and the extra material would fly off and that, plus the incoming projectile, would frequently detonate ammunition.
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Yes, that is right, but when armour is thin enough and the shell is overpowered sufficiently there will be little to no material flying off, or in any case, not enough to cause any damage. The frequent thing that will happen upon penetration is just "inconveniences" to the crew or vulnerable systems, most of the time tanks do not brew up, unless they are notorious for doing so especially easily. Anyhow, after-armour effects are increased substantially with larger shells and their bursting charge.
Furthermore:
http://www.janes.com/articles/Janes-...les--APHE.html
In addition: Encyclopedia of German tanks of WW2 (Chamberlain & Doyle, 1978, somewhere around p.300 off the top of my head), Tiger Tanks (Jentz & Doyle, 2000),
http://www.battlefield.ru/content/ca...44/64/lang,ru/
"This drawing illustrates how the APCBC round (the main type of armor piercing ammunition used by the Tiger's crews) works. The first cap, the aerodynamic one, makes possible an efficient trajectory. Then, it disintegrates when the target is hit. The second cap, the blunt one, designed for ballistic performance, takes over and avoids the projectile from ricocheting off inclined armor. The projectile penetrates the armor and then explodes inside the tank, causing catastrophic damage." (source:
http://www.fprado.com/armorsite/tiger1.htm)
Quote:
Do you have a source for that? 
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look above.