I haven't shot the Aguila but my personal observations have led me to believe that a .380 is just barely pushing enough velocity to expand reliably out of a full-sized .380 (i.e., Bersa Thunder or similar). In my limited and informal testing, I have seen that the extra barrel length of the Bersa can make a huge difference in expansion over the shorter barrel of the .380 pocket pistols. The Golden Saber mentioned is a good example as my water jug test showed very poor expansion...
... While my wife's Bersa produces a very nicely expanded bullet in the same test. (sorry, no picture of that one

)
In my water jug/wet phone book testing, I have found that both the Hornady Critical Defense and ammunition using the Hornady XTP bullet perform excellently. I know the Gold-Dot is also a popular choice that is reported to function very well from the pocket pistols. Typical reviews seem to show that non-specialty .380 HPs such as Remington UMC and the like are not designed for the extremely short-barreled pistols.