PPK and my 2%..
I bought an Interarms PPK back in the mid-80s and since then it has logged lots of miles. The most annoying thing about shooting the PPK was the slide-tracks it left on the web of my shooting hand. That has since been corrected and I understand that frames on current PPKs are designed to prevent that. Knowing the importance of shot placement, I had larger, easier to see in dim light, sights installed.
I fired several different brands of ammunition before I pretty much settled on
Federal Hydra-Shock. Not that any of the others weren't as good, it just seemed that whenever I went to buy some ammunition, there was a ready stock of Hydra-Shocks available in whatever caliber I wanted.
I never used the slide mounted 'de-cocker' as a 'safety', although using it as a 'safety' would definitely be better if you wanted the little PPK to pass a 'drop test'. With that in mind, a good carry system is important.
The PPK has been absolutely reliable with whatever type of ammunition that I have tried. That includes Cor-Bons and Glassers. Haven't fired a bunch of Glassers though. At about $1.10 a round thery are kinda pricey. But I fired enough of them to be satisfied that they would reliabily function in the PPK.
My biggest problem with the PPK was the absence of a slide lock. Although mine never failed to feed, fire, eject, and feed again, if you ever do have a double feed jam in a handgun without a slide lock, you need an empty magazine to get the slide to lock back.
The PPK doesn't get out much anymore. Its been replaced by a plastic frame Kahr or revolver. But, at that time, it was the best game in town and suited my perceived needs very well.
I don't know the reason for it, maybe its the fixed barrel, but you might be surprised at the accuracy that your little 380 is capable of.
Have fun and stay safe.
salty.