[Ursus Maior]

Originally Posted by pmulcahy11b

There is picture on a page I cruised into (I'll find it and edit -- but its nearly dinner for the guys right now) where there are some Brazilian officers holding an APFSDS round for an EC-90 gun. But the text of the article does describe EC-90 APFSDS as being no more effective than HEAT upon striking the target.

https://tanks-encyclopedia.com/coldw...a2-carcara.php

Here is the text that explains the ammo question for the EC-90 in the article you linked. The encyclopedia generally does good work, in my personal opinion.

ontrary to common statements, the X1A2 was thus not able to fire APFSDS rounds in the configuration it used at the time. Not only were they not available at the time when the X1A2 was in service, the development of the APFSDS round was never completed by Engesa. It also did not have a muzzle brake that would support the APFSDS round. Since neither requirements were met, the X1A2 never used APFSDS in its loadout. In addition, by the time the APFSDS round could have been ready, interest had already completely shifted to the M41C and the main battle tank projects like the Osorio and Tamoyo.

The X1A2 had access to HEAT, High Explosive Squash Head (HESH), and High Explosive (HE) rounds. The HEAT round was meant for anti-armor purposes and was the X1’s anti-tank round. The HESH round was mainly meant for bunkers, walls and light vehicles, and not as ‘anti-armor’ ammunition. The HE round was used as a general purpose support round. The X1A2 also had access to a white phosphorus smoke round and a HEAT practice round.