I tend to carry whatever's either available in the training/qual inventory when I'm loading a gun and magazines, or whatever I can find at a local cop shop/ammo distributor for relatively decent cost ... presuming it all feeds, fires & functions in my LCP.
For the time being, that pretty much means I have boxes of Speer Gold Dot, Remington Golden Sabre and Winchester T-Series. (I reloaded my LCP at home the other day, and since I didn't want to walk out to the garage cabinets to get more Rem GS, I reloaded with a box closer at hand, in the house, which was Speer GDHP.)
I also have some Win STHP and some FP ball, but I don't generally load those for carry roles.
Why don't I commonly carry ball ammo?
Well, I'm not trying to make my .380 into something it's not (meaning it's not a .38 Spl nor a 9mm), and I understand there's a tradeoff in balancing JHP with ball ammo for defensive carry, at least when it comes to balancing the advantages and disadvantages, which includes the potential for expansion and/or potential penetrative performance.
I realize there's always going to be a possible risk of hitting an attacker's intervening limbs in a close range shooting incident, and that a JHP, if it expands, may not perforate and go on to enter the torso, and to a sufficient depth needed to reach and damage critical tissues, structures and organs, hopefully causing quick incapacitation, or at least a cessation of the attacker's voluntary actions involving the threat of imminent deadly force.
Ditto an oblique angle which puts heavy bony structures in front of the bullet's path.
Well, TANSTAAFL, folks.
I remember a shooting where a 180gr .40 JHP round hit an attacker's arm, failed to penetrate the arm ... and was deflected up the humerus, coming to rest in the shoulder capsule. No guarantees for what happens when bullets hit flesh and bone.
I remember a couple other shootings, where .380's were involved. Those were back at the end of the 80's, and if I recall, both involved the use of generic ball ammo.
In one, some .380 rounds were fired into a house from a car (driveby). We found that some rounds had not only entered the front living room through the front window and wall, but had then gone on to enter the wall at the other side of the living room. Nobody had been hit or injured, and I left the scene to the evidence tech to process. I don't remember hearing if any rounds had gone on to enter the room on the other side of the far living room wall.
In the other .380 shooting, a single bullet was fired inside a commercial building. It passed through a clip board hanging on an exterior wall, passing through the wall/door-framing behind it, exiting the outside wall and going on to hit the someone in the spine. That person became a paraplegic.
I'm well aware of the opinions of respected people in the firearms training and ballistics research fields when it comes to the relatively 'low powered' .380 ACP. In the general subject of handguns serving in the role of dedicated defensive weapons, the .380 is a further compromise in an already existing range of compromises (handguns, in general).
If I didn't want something that would fit into the tighter & shorter jeans pockets in which I can't carry one of my 5-shot J's, I'd not even have bought my LCP.
For my anticipated needs, I'm still willing to commonly choose JHP's over ball for everyday carry roles, even if that means some lessened potential for penetration depth in some circumstances.
Perforations (over-penetration) of an intended threat target, whether resulting from solid COM or peripheral anatomical hits, are things which concern me ... but, so do complete misses of an intended threat target.
One of the nicer things about newer production and designed .380's is that they seem to be better able to reliably feed hollowpoints, which isn't something that was commonly said about many .380's in the 20th century.
I'd follow whatever local legal and/or policy restrictions might be involved, and then go with whatever was available which also fed & functioned optimally in my .380's (I just ordered a stainless LCP), and worry more about running the little gun safely, accurately, controllably and effectively. It is what it is, and it's a .380 ACP.