But that's only part of the news. As most of you know, .380's generally are blowback designs, wherein the recoil of the slide immediately begins the extraction of the spent case. To aid in controlling some of the gases, usually the springs are "stout". However, now we see the advent of numerous examples of .380 +P+ offerings. These puppies run 85-95 gr and >1,000 fps. Nothing shabby about that.
However, blowback now will require even stouter springing to insure that the gases don't blow up in the shooter's face. THAT might cause some tendency for malfxn with lighter loads.
Enter the Glock 42. To date, only Ruger & Walther (I think) made locked breech weapons in .380. Such a design allowed for higher pressures while having lighter recoil springing. That means that smaller shooters would find a decent cartridge for SD while having relatively light slide pull-back forces. Now the Glock 42 joins this group.
My sense is that we will be seeing more of this kind of weapon. It will be driven by the lighter pull of the slide and the higher power of the newer cartridges.
The .380 ACP has arrived!